Двигательная установка. RIT-10. [Редактировать]

Технические характеристики

#ХарактеристикаЗначение
1Тяга, мН15
2Удельный импульс, метра в секунду31500
3Мощность, Вт590

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Дата загрузки: 2017-11-08
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0.2/5
... atas dapat dilihat bahwa ritualized (rit) dan instrumental (ins) dihubungkan ke... Nilai t Std. Loading Factors Keterangan Rit – Taf 9,18 0,63 Signifikan Ins... – Perc 1,31 0,11 Tidak signifikan Rit – Perc 2,66 -0,24 Tidak signifikan... valid data. Syntax FREQUENCIES VARIABLES=Rit /STATISTICS=MEDIAN /ORDER=ANALYSIS. Resources... = ins perc = taf aac rit ins taf = rit aac = ins Options AD... + 0.43*aac - 0.40*ins + 0.15*rit, Errorvar.= 0.76 , R² = 0.24 (0.085) (0.19... -0.39 0.87 6.50 taf = 0.63*rit, Errorvar.= 0.60 , R² = 0.40 (0.069) (0.089... , R² = 0.61 (0.20) 2.00 rel = 0.84*rit, Errorvar.= 0.29 , R² = 0.71 (0.063) (0.054) 13.31 5.30 keb = 1.04*rit, Errorvar.= -0.073 , R² = 1.07 (0.11) (0.067... variance is negative. mwa = 0.86*rit, Errorvar.= 0.27 , R² = 0.73 (0.11) (0.083... Equations perc = 0.83*ins + 0.20*rit, Errorvar.= 0.84, R² = 0.16 (0.67) (0.16) 1.24 1.26 taf = 0.0*ins + 0.63*rit, Errorvar.= 0.60, R² = 0.40 (0.069) 9.22 aac = 2.87*ins + 0.0*rit, Errorvar.= 0.41, R² = 0.59 (0.98) 2.93 int = 2.08*ins + 0.0*rit, Errorvar.= 0.69, R² = 0.31 (0.64) 3.23 att = 0.68*ins + 0.0*rit, Errorvar.= 0.97, R² = 0.033 (0.45) 1.52 pva = 1.03*ins + 0.0*rit, Errorvar.= 0.38, R² = 0.17 (0.30) 3.40 inf = 3.24*ins + 0.0*rit, Errorvar.= 0.24, R² = 0.76 (0.80) 4.07 iso = 2.91*ins + 0.0*rit, Errorvar.= 0.39, R² = 0.61 rel = 0.0*ins + 0.84*rit, Errorvar.= 0.29, R² = 0.71 (0.063) 13..., 2012 173 keb = 0.0*ins + 1.04*rit, Errorvar.= -0.073, R² = 1.07 (0.11) 9.52 mwa = 0.0*ins + 0.86*rit, Errorvar.= 0.27, R² = 0.73 (0.11) 8.05... Independent Variables ins rit ins -------0.07 (0.03) 2.15 rit -------- 0.22 (0.05) 4.17... 0.23 mwa 0.19 ins 0.07 rit 0.23 Covariance Matrix of Latent... Covariance Matrix of Latent Variables rit rit -------1.00 Goodness of Fit Statistics... inf 8.1 -1.03 aac rit 8.1 -0.70 pva rit 16.9 -0.41 inf rit 8.4 0.89 Universitas... = ins perc = taf aac rit ins taf = rit aac = ins Set Error... + 0.37*aac - 0.28*ins + 0.20*rit, Errorvar.= 0.78 , R² = 0.22 (0.086) (0.15... -0.71 1.68 6.85 taf = 0.63*rit, Errorvar.= 0.60 , R² = 0.40 (0.068) (0.087..., R² = 0.98 (0.16) 0.12 rel = 0.85*rit, Errorvar.= 0.28 , R² = 0.72 (0.063) (0.054) 13.34 5.29 keb = 1.04*rit, Errorvar.= -0.084 , R² = 1.08 (0.11) (0.066... variance is negative. mwa = 0.86*rit, Errorvar.= 0.26 , R² = 0.74 (0.11) (0.082... Equations perc = 0.43*ins + 0.25*rit, Errorvar.= 0.85, R² = 0.15 (0.26) (0.098) 1.64 2.61 taf = 0.0*ins + 0.63*rit, Errorvar.= 0.60, R² = 0.40 (0.068) 9.29 aac = 1.92*ins + 0.0*rit, Errorvar.= 0.46, R² = 0.54 (0.59) 3.28..., 2012 189 int = 1.26*ins + 0.0*rit, Errorvar.= 0.77, R² = 0.23 (0.39) 3.26 att = 1.16*ins + 0.0*rit, Errorvar.= 0.80, R² = 0.20 (0.38) 3.02 pva = 0.76*ins + 0.0*rit, Errorvar.= 0.34, R² = 0.20 (0.20) 3.71 inf = 2.63*ins + 0.0*rit, Errorvar.= -0.0086, R² = 1.01 (0.57) 4.60 iso = 2.60*ins + 0.0*rit, Errorvar.= 0.019, R² = 0.98 rel = 0.0*ins + 0.85*rit, Errorvar.= 0.28, R² = 0.72 (0.063) 13.34 keb = 0.0*ins + 1.04*rit, Errorvar.= -0.084, R² = 1.08 (0.11) 9.70 mwa = 0.0*ins + 0.86*rit, Errorvar.= 0.26, R² = 0.74 (0.11) 8.06... Independent Variables ins rit ins -------0.15 (0.06) 2.45 rit -------- 0.27 (0.06) 4.81... ins 0.15 rit 0.27 Covariance Matrix of Latent Variables rit rit -------1.00 Goodness... pva mwa 8.4 -0.19 int rit 10.3 0.35 pva rit 10.5 -0.23 Universitas Indonesia Pengaruh... = ins perc = taf aac rit ins taf = rit aac = ins Universitas Indonesia... - 0.27*aac - 0.0087*ins + 0.24*rit, Errorvar.= 0.81 , R² = 0.19 Universitas Indonesia...) 1.31 2.66 7.06 taf = 0.63*rit, Errorvar.= 0.61 , R² = 0.39 (0.068) (0.088... variance is negative. rel = 0.84*rit, Errorvar.= 0.29 , R² = 0.71 (0.064) (0.054....29 5.31 keb = 1.05*rit, Errorvar.= -0.098 , R² = 1.10 (0.11) (0.067) 9.81 -1.47... variance is negative. mwa = 0.86*rit, Errorvar.= 0.26 , R² = 0.74 (0.11) (0.082... 204 perc = 0.046*ins + 0.31*rit, Errorvar.= 0.89, R² = 0.11 (0.024) (0.068) 1.89 4.59 taf = 0.0*ins + 0.63*rit, Errorvar.= 0.61, R² = 0.39 (0.068) 9.18 aac = - 0.20*ins + 0.0*rit, Errorvar.= 0.96, R² = 0.040 (0.050) -4.05 int = 0.096*ins + 0.0*rit, Errorvar.= 0.98, R² = 0.0094 (0.028) 3.50...*ins + 0.0*rit, Errorvar.= 0.64, R² = 0.014 (0.027) 3.54 pva = 0.10*ins + 0.0*rit, Errorvar.= 0.38, R² = 0.026 (0.027) 3.77 inf = 2.45*ins + 0.0*rit, Errorvar... (0.51) 4.83 iso = 2.40*ins + 0.0*rit, Errorvar.= -4.76, R² = 5.76 rel = 0.0*ins + 0.84*rit, Errorvar.= 0.29, R² = 0.71 (0.064) 13... + 1.05*rit, Errorvar.= -0.098, R² = 1.10 (0.11) 9.81 mwa = 0.0*ins + 0.86*rit, Errorvar.= 0.26... of Independent Variables ins rit ins -------1.00 rit -------- 0.27 (0.05) 4.94 1.00... keb 0.03 mwa 0.02 ins 0.10 rit 0.03 Covariance Matrix of Latent... ins 1.00 rit 0.27 Covariance Matrix of Latent Variables rit rit -------1.00 Goodness... rel keb mwa inf iso rit rit ins 15.6 14.9 9.6 14.6 13...



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0.3/5
... 13 prayers. 12 13 10/3 10/4 10/10 10/23 10/24 10/30 10/31 11/6 11... Mercyhurst W 5-2 at Mercyhurst L 7-9 at Northeastern L 1-2 RIT W 5-2 at RIT W 4-3 No. 3 Providence L 2-7 No. 3 Providence.... RIT (1st) (10/23/15) GAME-HIGHS Points.................................................................. 20 at Mercyhurst (10/4/15.../29/16) Saves.................................................................................43 at RIT (10/24/15) Penalties................................................... 8-2x, last... at RIT (10/24/15) Penalties ................................. 3 by Tylor Spink at Mercyhurst (10/4/15... (10/4/15) Assists...................................................................15 at Mercyhurst (10/4/15) SOG....................................................................................46 at RIT (10/24/15) Saves.................................................................... 37 at Mercyhurst (10/4/15) Penalties................................................................ 7 at Mercyhurst (10... Northeastern.......0-0-0............0-0-0........... 0-0-0...........0-1-1........... DND............1-0-1...........0-0-0............0-0-0..............----..............DND............ 0-0-0...........0-0-0............0-0-0........... 0-1-1........... 0-0-0 RIT................................ DND............0-0-0........... 0-0-0...........0-1-1........... DND............1-2-3...........0-0-0............1-0-1..............----..............0-0-0...........0-2-2...........0-1-1............0-0-0........... 1-1-2........... 0-0-0 at RIT...........................0-0-0........... 0-1-1........... 0-0-0........... 0-0-0............ DND............0-0-0...........0-0-0............0-0-0..............----..............DND............1-1-2...........0-0-0............0-0-0........... 0-1-1........... 1-0-1 PROVIDENCE..........0-0-0........... 0-1-1........... 0-0-0........... 0-0-0............ DND... Mercyhurst............... 0-1-1...............0-0-0...............0-0-0.............1-0-1..............0-0-0.......... 2-0-2 at Mercyhurst...............1-1-2............. 3-0-3..............0-0-0.............0-0-0..............0-2-2...........0-1-1 at Northeastern........... 0-0-0...............0-0-0...............0-0-0.............0-0-0..............0-0-0...........0-0-0 RIT.................................... 0-0-0...............1-0-1...............0-0-0.............0-0-0..............0-0-0...........0-1-1 at RIT............................... 1-0-1...............1-1-2...............0-0-0.............0-0-0............. 0-3-3...........0-0-0 PROVIDENCE.............. 0-0-0...............0-0-0...............0-0-0.............0-0-0..............0-0-0...........0-0-0 PROVIDENCE.............. 0-1-1...............0-0-0...............0-0-0.............1-0-1..............0-1-1...........0-0-0 QUINNIPIAC................ 0-0-0...............0-0-0...............0-0-0.............0-1-1..............0-0-0...........0-0-0 PRINCETON... 10 0 0 0 0-0-0 0/0 Totals 10 0 0 0 0-0-0 0/0 CAREER HIGHS CAREER HIGHS Saves.......................................................................43-2x last at RIT (10.../16) Assists.................................................................... 2-3x, last vs. RIT (10/23/15) Assists............................................................ 1-12x, last... RIT (10/23/15) Assists....................................................................................3 at Union (1/17/15) Points.......................................................................2, vs Providence (10.../16) Assists.................................................................................... 3 at RIT (10/24/15) Points...................................................................................... 3 at RIT (10/24/15) BRUCE.... 23, 2015 - HAMILTON GAME #5 COLGATE 4, RIT 3 OCT. 24, 2015 - ROCHESTER, N.Y. GAME... 2 OCT. 30, 2015 - HAMILTON RIT 1 0 1 - 2 COLGATE 1 2 2 - 5 COLGATE 0 2 2 - 4 RIT 0 1 2 - 3 PROVIDENCE 3 1 3 - 7 COLGATE 0 1 1 - 2 1ST PERIOD.... Penalties: SMITH, Danny, RIT (hooking) 2:39; HOLLAND, Michael, RIT (slashing) 6:43; Spink.... Penalties: NORRISH, Brady, RIT (tripping) 7:02; KUQALI, Alexander, RIT (interference) 14:23.../2 (Murphy, Darcy/2, Brooks, Willie/4) 9:43. 2, RIT, VALENZUELA, Gabe/1 (NORRISH, Chase/1, KERINS... players on ice) 10:43; AMLONG, Greg, RIT (slashing) 19:10. Scoring: No..., COLGATE (slashing) 2:10; NORRISH, Chase, RIT (interference) 12:05. POWER PLAY: RIT: 2/4 (.500); COLGATE: 1/4 (.250) PENALTIES: RIT: 6/12; COLGATE: 6/12 FACEOFFS: RIT - 30; COLGATE - 27 ATTENDANCE: 1724 PENALTIES: COLGATE: 6/12; RIT: 5/10 FACEOFFS: COLGATE - 36; RIT - 36 ATTENDANCE: 4300 SHOTS SHOTS COLGATE 7 14 6 - 27 RIT 2 5 16 - 23 RIT 17 11 18 - 46...



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0.22/5
... $13 and 13 prayers. 10/3 10/4 10/10 10/23 10/24 10/30 10/31 11/6 11... Mercyhurst W 5-2 at Mercyhurst L 7-9 at Northeastern L 1-2 RIT W 5-2 at RIT W 4-3 No. 3 Providence L 2-7 No. 3 Providence.... RIT (1st) (10/23/15) GAME-HIGHS Points.................................................................. 20 at Mercyhurst (10/4/15.../29/16) Saves.................................................................................43 at RIT (10/24/15) Penalties................................................... 8-2x, last... at RIT (10/24/15) Penalties ................................. 3 by Tylor Spink at Mercyhurst (10/4/15... (10/4/15) Assists...................................................................15 at Mercyhurst (10/4/15) SOG....................................................................................46 at RIT (10/24/15) Saves.................................................................... 37 at Mercyhurst (10/4/15) Penalties................................................................ 7 at Mercyhurst (10... Northeastern.......0-0-0............0-0-0........... 0-0-0...........0-1-1........... DND............1-0-1...........0-0-0............0-0-0..............----..............DND............ 0-0-0...........0-0-0............0-0-0........... 0-1-1........... 0-0-0 RIT................................ DND............0-0-0........... 0-0-0...........0-1-1........... DND............1-2-3...........0-0-0............1-0-1..............----..............0-0-0...........0-2-2...........0-1-1............0-0-0........... 1-1-2........... 0-0-0 at RIT...........................0-0-0........... 0-1-1........... 0-0-0........... 0-0-0............ DND............0-0-0...........0-0-0............0-0-0..............----..............DND............1-1-2...........0-0-0............0-0-0........... 0-1-1........... 1-0-1 PROVIDENCE..........0-0-0........... 0-1-1........... 0-0-0........... 0-0-0............ DND... Mercyhurst............... 0-1-1...............0-0-0...............0-0-0.............1-0-1..............0-0-0.......... 2-0-2 at Mercyhurst...............1-1-2............. 3-0-3..............0-0-0.............0-0-0..............0-2-2...........0-1-1 at Northeastern........... 0-0-0...............0-0-0...............0-0-0.............0-0-0..............0-0-0...........0-0-0 RIT.................................... 0-0-0...............1-0-1...............0-0-0.............0-0-0..............0-0-0...........0-1-1 at RIT............................... 1-0-1...............1-1-2...............0-0-0.............0-0-0............. 0-3-3...........0-0-0 PROVIDENCE.............. 0-0-0...............0-0-0...............0-0-0.............0-0-0..............0-0-0...........0-0-0 PROVIDENCE.............. 0-1-1...............0-0-0...............0-0-0.............1-0-1..............0-1-1...........0-0-0 QUINNIPIAC................ 0-0-0...............0-0-0...............0-0-0.............0-1-1..............0-0-0...........0-0-0 PRINCETON... 10 0 0 0 0-0-0 0/0 Totals 10 0 0 0 0-0-0 0/0 CAREER HIGHS CAREER HIGHS Saves.......................................................................43-2x last at RIT (10.../16) Assists.................................................................... 2-3x, last vs. RIT (10/23/15) Assists............................................................ 1-12x, last... RIT (10/23/15) Assists....................................................................................3 at Union (1/17/15) Points.......................................................................2, vs Providence (10.../16) Assists.................................................................................... 3 at RIT (10/24/15) Points...................................................................................... 3 at RIT (10/24/15) BRUCE.... 23, 2015 - HAMILTON GAME #5 COLGATE 4, RIT 3 OCT. 24, 2015 - ROCHESTER, N.Y. GAME... 2 OCT. 30, 2015 - HAMILTON RIT 1 0 1 - 2 COLGATE 1 2 2 - 5 COLGATE 0 2 2 - 4 RIT 0 1 2 - 3 PROVIDENCE 3 1 3 - 7 COLGATE 0 1 1 - 2 1ST PERIOD.... Penalties: SMITH, Danny, RIT (hooking) 2:39; HOLLAND, Michael, RIT (slashing) 6:43; Spink.... Penalties: NORRISH, Brady, RIT (tripping) 7:02; KUQALI, Alexander, RIT (interference) 14:23.../2 (Murphy, Darcy/2, Brooks, Willie/4) 9:43. 2, RIT, VALENZUELA, Gabe/1 (NORRISH, Chase/1, KERINS... players on ice) 10:43; AMLONG, Greg, RIT (slashing) 19:10. Scoring: No..., COLGATE (slashing) 2:10; NORRISH, Chase, RIT (interference) 12:05. POWER PLAY: RIT: 2/4 (.500); COLGATE: 1/4 (.250) PENALTIES: RIT: 6/12; COLGATE: 6/12 FACEOFFS: RIT - 30; COLGATE - 27 ATTENDANCE: 1724 PENALTIES: COLGATE: 6/12; RIT: 5/10 FACEOFFS: COLGATE - 36; RIT - 36 ATTENDANCE: 4300 SHOTS SHOTS COLGATE 7 14 6 - 27 RIT 2 5 16 - 23 RIT 17 11 18 - 46...



Дата загрузки: 2017-10-24
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0.32/5
... of the discharge pressure for RIT-10 operated with Mercury at constant... a RIT-10 engine running at 250 mA of beam current (11)................ 10 Figure 2-10: Calculated total ionization rate of N 2 and O 2 within a RIT-10 ionizer as a function of the electron temperature kT e (11) ........................................................................ 10 Figure... induced electrical field E ind of a RIT-10 engine together with the electron...-drawing of the RIT-10-EBB ............................................................................. 28 Figure 3-10: Mounted RIT-10-EBB from backside.................................................................... 28 Figure 3-11: Mounted RIT-10-EBB... 4-29: 10 hours long run test for N 2 ............................................................................... 68 Figure 4-30: RIT-10-EBB... (Imp-Trans 1:3) the reconstruction (RAM-RIT-10) .............. 79 Figure 4-42: The comparison... 1:3) the reconstruction (RAM-RIT-10) ............................................................................................................................ 79 Figure 4-43: RAM-RIT-10 thruster running with... I Beam 83 Figure 4-48: RAM-RIT-10 thruster running with N 2 +O 2 +Xeat@234... RAM-RIT-10 running with N 2 ............................................. 97 Figure 5-4: Mass efficiency of the RAM-RIT-10... working regime of the RAM-RIT-10 for N 2 +O 2 mixture, no respect to... RAM-RIT-10 thruster; P rf and 𝑉 against thrust for N 2 +O 2 ..................................................................................................................................... 100 Figure 5-10: Thrust... of a RAM-RIT-10 compared with that of a nominal-power RIT-22 (new... values for N 2 +O 2 +Xe .................................................................. 108 Table 5-9: RIT-10-EBB performance data of Xe... by 𝑛𝑒 �𝑇𝑒 (see 2.2.2). Figure 2-3 shows the RIT-10 Mercury data (3). The shapes of... of investigation applied to establish a RIT-10 thruster performance model for operation... of the discharge pressure for RIT-10 operated with Mercury at constant... RIT-10 beam current 𝐼𝑖 = 250 𝑚𝐴. Note, that 𝑘𝑇𝑒 should be near the 10 eV... a RIT-10 engine running at 250 mA of beam current (11) Figure 2-10: Calculated total ionization rate of N 2 and O 2 within a RIT-10 ionizer as a function of the electron temperature kT e (11) 10 Figure... induced electrical field E ind of a RIT-10 engine together with the electron... discharge, i.e. in the plasma of a RIT-10 engine, ion-electron recombination takes... is a good approximation for the RIT-10 as described above, the plasma... added: 2.3. Basic equations 𝑉0̇ = 𝐿 ∙ 𝑝𝑖 𝑎𝑛𝑑 𝑉̇ = 𝑉̇𝑖 + 𝑉0̇ 2-15 The RIT-10 should be operated with Xenon... 3. Experiments Test article is the RIT-10-EBB ion thruster as described... hardware. The RIT-10 is an ion engine with a 10 cm in diameter... the extraction system of the RIT-10-EBB, there was another modification... version of the RIT-10-EBB is named as RAM-RIT-10. 22 3.1. Experimental... ion thruster RIT-10-EBB /RAM-RIT-10, a Radio-Frequency-Ion-Thruster (RIT) which generates... the RIT-10-EBB Figure 3-11: Mounted RIT-10-EBB frontal view Figure 3-10: Mounted RIT-10-EBB from backside An EBB model of the RIT-10 was... configuration has been realized (RAM-RIT-10) with a Titanium grid instead of... performance compared to the original RIT-10 used on Artemis. After these... the gas mixture test (RIT-10-EBB → RAM-RIT-10). 4.5. Test campaign with Nitrogen... The performance mapping of the RIT-10-EBB, constructed for this activity... performance values of the original RIT-10 thruster flown on Artemis and... operation point of the former RIT-10 is defined with a screen voltage... power for the RIT thruster (Artemis). Obviously, the RIT-10-EBB thruster needs... mapping with Oxygen Figure 4-30: RIT-10-EBB thruster running with O2... available power for the RIT thruster. The RIT-10-EBB thruster needs higher... characterization of the modified RIT-10-EBB (RAM-RIT-10) are reported in this... The performance mapping of the RIT-10-EBB, after the reconstruction of... (Imp-Trans 1:3) the reconstruction (RAM-RIT-10) Figure 4-42: The comparison between...-RIT-10) 79 4.7.2. Performance mapping with N2 + O2 mixture Figure 4-43: RAM-RIT-10... available power for the RIT thruster. The RAM-RIT-10 thruster needs a higher... performance curves of the RAM-RIT-10 operated with Nitrogen and Oxygen... RAM-RIT-10 running with N2 Figure 5-4: Mass efficiency of the RAM-RIT-10... 53.3 1.9 1.25 open 0.25 1.2 0.7 - Artemis RIT-10 & test engine Xe, 15 mN... of a RAM-RIT-10 compared with that of a nominal-power RIT-22 (new... mathematical model yields the RAM-RIT-10 performance data with Xe, N2... efficiency 𝜼𝒆 [%] 76.5 63.0 70.3 Table 5-9: RIT-10-EBB performance data of Xe... elegant bread board model of a RIT-10 was constructed and some modifications... very well with the RAM-RIT-10 thruster. Lower dissociation impact was... thrust levels for the RAM-RIT-10 thruster, achievable with 450 W total...



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0.6/5
... the model predicts the main RIT 3.5 thruster performance parameters within ૚૙% error... NSAT, Kobe-Hyogo, Japan July 4 – 10, 2015 2 ݄ ‫ܫ‬ ‫ܬ‬ ݇௙ ݇௞ ݇ ‫ܮ‬ ‫ܯ‬௜ ෩ ‫ܯ‬ ݉௔௦௣ ݉ሶ ݊ ‫݌‬ ܲ ܴ ܶ௘ ܶ௘௙௙ ܶ଴ ܶ௪ ܷ௜ ܷ ‫ݑ‬஻ V ‫ݒ‬ ܹ ‫ݓ‬ ܼ ߚ Ȟ ߜ஻ ߜ௘௙௙ ߝ ߟ௖ ߣ௜ ߤ ߥ ߩ௩ ߪ௔௦௣ ߪ௣ ߪ௞ ߪ෤௠ ߶ ߯଴ଵ ߱ ࣣ ࣣଵ ܿ ݁ ݃଴ ݉ ߝ଴ ‫݊ݎܿݏ‬ ݈ܽܿ݁ ݈݀݁ܿ݁ = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = local and center plasma... 792 458 ݉/‫ݏ‬ elementary charge, 1.619 × 10ିଵଽ ‫ܥ‬ conversion factor from ‫ ܣ‬to ‫ ݉ܿܿݏ‬for..., 13.938 ‫݉ܿܿݏ‬/‫ܣ‬ electron mass, 9.10938291 × 10ିଷଵ ݇݃ permittivity of free space, 8.85418782... July 4 – 10, 2015 T I. Introduction he radio frequency (RF) ion thrusters (RIT) consist... against the experimental results of RIT 3.5 miniature RF thruster designed by... NSAT, Kobe-Hyogo, Japan July 4 – 10, 2015 ݁ܶ௘଴ , ‫ܯ‬௜ ‫ = ܤݑ‬ඨ (5) where ܶ௘଴ is the upstream... the model for a set of RIT 3.5 grids, is shown in Fig... and ion trajectories for the RIT 3.5 ion optics grids and ࢁା = ૚ ࢑ࢂ. B. Neutral... neutral gas distribution in the RIT 3.5 ion optics is shown in... the upstream value inside the RIT 3.5 ion optics. In order to... through the Clausing factor as: ‫( = ܬ‬1 െ ߟ௖ )‫ܩ‬. (10) The model also includes the... the maximum value in the RIT 3.5 discharge chamber. Darker regions represent... considering the pressure range that RIT 3.5 operates21. The rate coefficient ݇ for... reduced angular frequencies (߱Τ݊଴ ) typical to RIT class ion thrusters for a mean... the distribution towards Maxwellian22. The RIT type thrusters operate in quite... different reduced angular frequencies are: ߱Τ݊0 = 10ିଵଶ , ߱Τ݊0 = 10ିଵଵ and ߱Τ݊0 = 0 (DC). D. Plasma sub – model... distribution is extremely important. From RIT 10 ion density measurements and from... density variation as measured in RIT 10 thruster24 and the model prediction... for such a discharge considering that RIT 10 operates at around 1 ݉ܶ‫ ݎݎ݋‬of pressure... radial distance as measured in RIT 10 and predicted by the model... July 4 – 10, 2015 Figure 9 shows the plasma density variation for RIT 3.5 thruster... of the sheath edge for RIT 3.5 thruster. The ݄௥ and ݄௟ parameters greatly... seen in Fig. 10, in the range of RIT 3.5 working pressures from.... Figure 10. ࢎ࢘ and ࢎ࢒ parameter variation with neutral gas pressure for RIT 3.5 thruster... on the magnetic field through: ߱௖௜ ߱௖௘ , ߥ௜ ߥ௘ 10 Joint Conference of 30th ISTS...: ‫ܤ‬௘௙௙ = ‫ܤ‬଴ ξ2ඥ1 + ߱ ଶ Τߥ ଶ . (26) Since the ߱Τߥ ratio for RIT 3.5 operational conditions is approximately equal.... As Fig. 11 indicates, for RIT 3.5 thruster, the magnetic field starts... magnetic field expected in the RIT 3.5 plasma is only about 20... 12. Magnetic field in ࡳࢇ࢛࢙࢙ inside RIT 3.5 plasma for ૛. ૞ ࢓ࡺ thrust operational condition... given by: ݊௜ ln Ȧ , ଷΤଶ ܶ௘଴ (28) 10ି଺ ݊௜ . ଷ ܶ௘଴ (29) ߥ௘௜ = 2.91 × 10ିଵଶ and ln Ȧ is the... NSAT, Kobe-Hyogo, Japan July 4 – 10, 2015 (44) ܲ௫௦ = (1 െ ݂௢௦ )‫ܣ‬௦ ܲ௫ , ‫ܣ‬௪ (45) where ݂௢௦ and... the circuit is zero. For RIT 3.5, the resonance frequency is around... the ݄ parameter discussed earlier. For RIT 3.5 thruster, the plasma density and... to the centre value in RIT 3.5 thruster for ࢎ࢘ = ૙. ૝. The complex thruster... NSAT, Kobe-Hyogo, Japan July 4 – 10, 2015 (57) ݇௙ = ‫ܯ‬ ඥ‫ܮ‬௠௣ ‫ܮ‬௧௛௥ , (58) and the... resistance ࡾ࢏ variation with temperature for RIT 3.5 thruster. The other heat sources... in Fig. 17, the actual RIT 3.5 thruster grid geometry having 121... thermal modelling. Left: the actual RIT 3.5 screen grid with 121 apertures... to the preliminary measurements of RIT 3.5 thruster using Xenon. As can...% 8.66 8.40 1.45 1.53 -5.83% 10 10.5 1.60 1.63 -1.69% 15.44... model and experimental results for RIT 3.5 thruster. Exp., Mod. and Err..., W 25.0 min=0.2sccm 20.0 15.0 10.0 5.0 0.0 0 0.2 0.4 0.6 0.8 Mass utilization efficiency Figure 18.... 0.9 0.8 0.7 Efficiency 0.6 0.5 etaw 0.4 etam 0.3 0.2 0.1 0 0.00 5.00 10.00 15.00 20.00... NSAT, Kobe-Hyogo, Japan July 4 – 10, 2015 2.9 2.7 Thrust, mN 2.5 2.3 2.1 1.9 1.7 1.5 20.00... that the coupling factor for RIT 3.5 varies between 0.15 at the... min=0.3sccm min=0.2sccm 20 10 0 0.3 0.4 0.5 0.6 0.7 0.8 Mass utilization efficiency Figure 24... mechanism inside the plasma of RIT 3.5 thruster. As can be seen... to the maximum value in RIT 3.5 thruster for ૛. ૞ ࢓ࡺ thrust operational condition... 4 – 10, 2015 Figure 27. Temperature distribution for ૚ૡ ࢃ input power in RIT 3.5 thruster... against the experimental results of RIT 3.5 thruster. It was shown that... predicting the temperature distribution within 10% error. The future aims include... Advanced Radio Frequency Ion Thruster RIT-XT,” Presented at the 28th... for Ion-Thruster of the RIT-Type,” Ph.D. Dissertation, Justus-Liebig... B. K., ”3D Thermal Simulation of a uN-RIT,” Presented at the 33rd International... Propulsion Conference, Washington, US, October 6-10, 2013. 13 COMSOL, Multi-Physics... Joint Conference, Kobe-Hyogo, July 4 – 10, 2015. 17 Brophy, J. R., Katz, I., Polk... Joint Propulsion Conference & Exhibit, July 7-10, Indianapolis, IN, 2002. 18 Wang... RIT 10 Ion Thruster, “ or “Plasmadiagnostik und Energiebilanzunterscuhung an dem HF-Ionentriebwerk RIT 10...



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... RF 1 MENU 2 1.0 3 RIT BAND 0.5 2 1 SPEED EDIT RF GAIN TAP: 10 HZ / 100... moderate lighting conditions, and about 10 mA at its brightest setting... tuning rates, receive incremental tuning (RIT), USB/LSB receive on all... adds 8.0-12.5 MHz receive and 10.1-10.15 MHz transmit. The KXB3080... V supply 3-4 W Receiver Sensitivity I.F. Approx. 0.2 µV for 10 dB (S+N)/N 4.915 MHz, single conversion... SECOND DIGIT TOLERANCE: GOLD = 5% SILVER = 10% MULTIPLIER COLOR Black Brown Red... Silver Gold DIGIT 0 1 2 3 4 5 6 7 8 9 - MULTIPLIER X1 X 10 X 100 X 10K X 10K X 100K X 1M... U1. Locate electrolytic capacitor C38 (10 µF, 35 v) and inspect the leads.... ELECRAFT Insert electrolytic capacitor C38 (10 µF, 35 v) with the longer lead... above. Install electrolytic capacitor C10 (10 µF, 35 v) below resistor R13 at... the printed outline (see Figure 10). _ Insert the device into the... ROUNDED BACK PCB OUTLINE Figure 10. Transistor Orientation Guide. ELECRAFT 25... < 5 ohms U1 all other pins > 10 k U3 pin 3 < 5 ohms U3 all other pins > 10 k D2 or D3 cathode (banded... or D3 cathode, S1 Off > 10 k ELECRAFT 27 Alignment and Test... The tuning rate alternates between 10 and 100 Hz steps as... period is flashed, e.g. t10 for 10 seconds. (Note: When the LED... on the board (See Figure 10). _ Insert the varactor leads in.... ELECRAFT Install electrolytic capacitor C53 (10 µF, 35 V) between diode D4 and... same procedure: i 35 _ C23 (100 µF, 10 V) about 3/4” (1.9 cm) above C53. _ C20... on the board (see Figure 10) and insert the transistor so...: _ Two 1k pots (B1K) _ One 10 k pot (B10K) Install potentiometer R2... AND AROUND CORNER NUB BLACK 4” (10.2 CM) SPLICE MUST LIE FLAT... the end. _ Black: cut to 4” (10.2 cm) in length and strip... Lithium cells, 6.5 V for NiMH, and 10.5 V for an external 12 V battery... audible CW switch feedback at 10, 20, or 30 WPM respectively... rate, and is flashed when RIT is enabled. Bargraph: In S-meter... control adjusts the VFO frequency, RIT offset (R I T , next page), keyer speed... only in the ham bands (7.0-7.3, 10.10-10.15, and 14.0-14.35... WPM) without transmitting. RIT Turns RIT on/off. When RIT is on, the... steps, +/- 5 kHz. CLR Zeros RIT offset When RIT is OFF, holding CLR... starts scanning (page 66). Selects 10 or 100 Hz VFO steps...: Limit TUNE time to 10 seconds on, 10 seconds off. If a KXAT1... the non-ATU case. B AN D + RIT DISP: Selects display mode Selects...: MENU + RIT CW/LSB/USB receive mode (page 66) MENU + 10/100...) B AN D + 10/100 High-Priority memory (page 67) RIT 10/100 + B AN D + 10/100..., without the need to use RIT. When an SSB signal is... 2 (for each band). Now, whenever RIT is off, you can activate... a single letter. These include RIT on (R), RIT off (O), RIT clear (C), VFO lock (L), VFO... mode, and followed by R if RIT is turned on. The kHz... of the frequency, and R for RIT if applicable, is also sent... mode provides audible "tics" every 10 VFO steps, and reports the... above. VFO Lock/Unlock Holding RIT + 10/100 locks (LOC) or unlocks... on the VFO frequency or RIT offset, and tapping or holding... can improve accuracy to typically +/- 10 Hz. Before calibration, the KX1... correction value (in this example, .10). If the USB reading was... the correction (in this example, -.10). 7. Exit the menu. You should... feedback on switch press (at 10, 20, and 30 WPM respectively... universal coordinated time announcements at 10.000 MHz, and many AM..., 100 µF electrolytic, low-profile Capacitor, 10 µF electrolytic, low-profile 1 2 4 E530046 E530149..., 1/4 watt, 5% (red-red-blk) Resistor, 10 ohms, 1/4 watt, 5% (brn-blk-blk...) 2 E510025 RP5 Rpack, 100K 5R, 10 pins (104) 1 E510026 ELECRAFT A7... 5 8 7 11 6 1 16 1 4 13 4 2 15 16 7 10 7 3 14 3 DIG1 RP3 10K B C 7 13... 5 D Vdd 6 CAP 7 DGND 8 MCLK 9 FSEL 10 PSEL 6V 5 3 C30 U2 AD9834... 3.3M U5 NE602 L10 33 µH + 5 6 10µF + * C17 0.1 G1 4 3 S TPS76427 4 1 D5 D 14 MHz LPF C38 10µF + C20 + C39 0.1 5 V+ V- G RX ANT R15... .01 C33 .01 S G 9 B G C A E DP F D 16F876A 10 8 2 2 F 8 A 1 E 12 15 2 D 5 J3 Key/Paddle... + B 5V RP5 RP1 3 9 0 A R17 1 K MCU D 9 D 10 G RP5 V+ KX1 Transceiver W. Burdick Rev... BLOCK DIAGRAM W. Burdick/E. Swartz Rev. A 10-04-00 Appendix D. KX1 Assembly... transmit time to 3 seconds keydown, 10 seconds key up. KX1 TOP... instability 09 EEPROM initialization pending 10 EEPROM was just initialized 15... ƒ ƒ ƒ ƒ ƒ ƒ 41 Can't tune VFO (or RIT offset) 42 No DDS output... locked ( see Operation) VFO or RIT offset may be at end..., your measurements should be within 10% of the values shown. Pins... (using TUNE). Ref. U1 Pin 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15..., your measurements should be within 10% of the values shown. Pins... D7 Pin A K A K A K K K K K VDC 13.33 10.4 13.8 13.5 9.0 13.5 0.3* 5.8 5.8 13.5 Ref... power is displayed 2 RIT 0.5 2.0 2 SPEED EDIT Tap for 10/100 Hz, hold... TAP: 10 HZ / 100 HZ HOLD: 1 kHz LOCK/UNLOCK: FILTER RIT + VFO... DISP (display mode): Hold BAND + RIT; norm, Smtr, battery VFO KNOB... MENU + RIT; norm, LSB, USB MENU/EDIT RIT/CLR Tap for RIT on/off, hold for RIT clear... LED LEVEL (tap BAND or RIT); LED TIMEOUT, use VFO knob...



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... DS Radio Frequency Ion Thruster "RIT" family and its evolution is... RIT-10. Over the years the engine was carefully evolved. The recent RIT-10... the excellent scalability of the RIT technology the family grew in... the 5kW class the RIT 2X series replaces RIT-22. The basics.... It is a flight proven technology: RIT-10 marked two milestones in the... of the RIT-family the three thrusters RIT-μX, RIT-10 EVO and the RIT 2X... motivated the development of the RIT-22 thruster and system. Offering... the evolutionary development of RIT-22 towards RIT 2X. In the public... simple mass saving. Especially the RIT provides perfect thrust control, in... been demonstrated. Onboard telecom satellites RIT-μX thrusters can serve as actuators... small satellites (75kg-300kg). II. RIT Function Principle and System A. Function... to changing performance requirements. Figure 1 RIT Function Principle 2 Joint Conference of... electrostatic thrusters (RIT, Kaufman, HEMP, HET) thus the RIT engines are optimized... have to be optimized accordingly. B. RIT System Elements The thrusters are... the following the components for a RIT based EP System are summarized... range, for small thrusters, like RIT-μX, the propellant consumption of these...' RIT-10 engines marked milestones in the history of electric propulsion The RIT-10... Earth via SPACESHUTTLE. Most probably RIT-10 is the only ion engine... after operation in space. When RIT-10 was launched 1992 on EURECA... MIssion Satellite a system with two RIT-10 thrusters was installed for north... July 4 – 10, 2015 With its comparably small thrust of 15mN a RIT thruster... electric propulsion. IV. RIT-μX The presentation of the RIT-Thruster and system... starts with its smallest member: RIT-μX. The development was motivated by..., Projects and Achievements When the RIT-μX development begun an extensive mission... a RIT-μX System working in the thrust range 10-100μN. In this configuration RIT... Topology is the baseline for a RIT-μX system as under development for... missions. One PPU serves four RIT-μX thrusters with their RFGs and.... It is current baseline for RIT-μX 'Science Systems'. Small spacecraft are... of AIRBUS DS' adaptation of RIT-μX systems for small satellites. The... the radio-frequency ionization principle: A RIT-μX thruster that is optimized for.... The infrastructure for operation of a RIT-μX based neutralizer, its FCU, its... and NSU. V. RIT-10 and RIT-10 Evolution The history of the RIT-10 thruster began... be considered as the first RIT-10. In the German aerospace company..., Japan July 4 – 10, 2015 Tracking the history of RIT-10 is also a journey... of electric propulsion. The first RIT-10 used mercury as propellant. Together... gas xenon. The adaptation of RIT-10 from operation with mercury to... step in the evolution of RIT-10. Detail work and more available... shows the RIT-10 EVO engine. Its design is identical to RIT-10 as... excerpt the grid system. In RIT-10 EVO a contemporary grid design is.... With the new grid system RIT-10 is operable in an augmented... of customers was not on RIT-10 EVO because its thrust was... platforms the thrust range of RIT-10 EVO together with its high... attractive again. VI. RIT-22 and RIT 2X A. RIT-22 At the time..., that a thruster above of the RIT-10 class (Class of pioneer engines... the 5KW thruster was called "RIT-XT". For the succeeding Engineering... indicating the ionizer size: RIT-22. RIT-22 was tested extensively during... spectra. Later the thruster interface (RIT-22 EM-2) was modified. It.... In a dedicated study compliance between RIT-22 and all requirements from... anticipated (RIT-22 TMD). RIT-XT RIT-22 EM RIT-22 EM-2 RIT-22 'TMD' Figure 3 Evolution of the RIT..., Japan July 4 – 10, 2015 B. RIT 2X Series When the original RIT-22 development... with the evolution from RIT-22 towards the RIT-2X thruster. A further... step from RIT-22 to RIT 2X was made with RIT-22 'TMD... TMD campaign provide confidence that RIT 2X will meet the targeted...' and the new RIT 2X series thruster. Figure 4 RIT-22 TMD and the new RIT 2X Series thruster C. RIT 2X... thruster functional chain consisting of a RIT 2X Thruster, Neutraliser (NTR), Radiofrequency... further for future applications Figure 5 RIT 2X and Building Blocks VII. Conclusion The RIT Thruster family has been grown... point and pioneer was the RIT-10 engine. The original engine was... improved the performance remarkably. Especially RIT 10 EVO demonstrates that the optimization... micro and milli-Newton regime RIT-μX offers thrust of highest quality... 4 – 10, 2015 RIT μX Nominal Thrust nom. Power 50 - 500 μN < 50 W Thruster RIT 10 EVO... >3400s >3435 s >4000s > 6000 s (RIT 22) < 25° >10 MNs >10000 >20000 h RF... Medium Geo Heavy Geo Table 1 RIT Family Thruster Data 9 Joint Conference... W. Loeb et al.: Development of a RIT-Millinewton thruster, IAC-04-S.4.04... et al., Experimental Validation of RIT Micro-Propulsion Subsystem Performance at...-2013-90 7 H.Leiter et al. RIT-22 Ion Engine Development - Endurance... et.al. Results from the RIT-22 Technology Maturity Demonstration Activity...



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... Text Key Ideas and Details RIT.1 Read closely to determine what... conclusions drawn from the text. RIT.2 Determine central ideas or themes... key supporting details and ideas. RIT.3 Analyze how and why individuals... of a text. Craft and Structure RIT.4 Interpret words and phrases as... choices shape meaning or tone. RIT.5 Analyze the structure of texts... each other and the whole. RIT.6 Assess how point of view.... Integration of Knowledge and Ideas RIT.7 Integrate and evaluate content presented..., as well as in words. RIT.8 Delineate and evaluate the argument... and sufficiency of the evidence. RIT.9 Analyze how two or more... and Level of Text Complexity RIT.10 Read and comprehend complex literary..., and research. Range of Writing W.10 Write routinely over extended time... standards are targeted for students 10-12 years of age, generally... Informational Text RIT.1 RIT.2 RIT.3 RIT.4 X X Lesson 1 X Lesson 2 X Lesson 3 X Lesson 4 X X Lesson 5 X X Lesson 6 X RIT.5 RIT.6 RIT.7 RIT.8 RIT.9 X RIT.10 X X X X X X X X Writing W.1 W.2 Lesson 1 X Lesson 2 X W.3 Lesson 3 Lesson 4 X W.4 W.6 W.7 W.8 W.9 W.10 X X X X X X X X X X X X X X Lesson 5 Lesson... standards are targeted for students 10-12 years of age, generally... popular culture anthropomorphize horses. RIT.1 Herd Time RIT.3 RIT.4 RIT.6 RIT.10 SL.1 SL.2 Read closely... comparison to cows and dogs RIT.1 W.2 W.10 Read closely to determine what... words and definitions Pasture Time RIT.4 Interpret words and phrases as...-find with lesson vocabulary words RIT.4 Interpret words and phrases as... suggested rationale for these placements RIT.1 RIT.10 W.2 W.4 W.10 Pasture Time Perform operations with... of the subject under investigation. W.10 Write routinely over extended time... to make logical inferences from RIT.1 it; cite specific textual evidence... conclusions drawn from the text. RIT.6 Assess how point of view... and informational texts independently and RIT.10 proficiently. Prepare for and participate... of the subject under investigation. W.10 Write routinely over extended time... match vocabulary words and definitions RIT.4 Interpret words and phrases as... how a bill becomes a law RIT.1 RIT.4 Herd Time RIT.7 RIT.10 Read and comprehend complex... shows how a bill becomes a law W.2 W.4 W.5 W.7 W.10 SL.6 History/ Soc Studies Pasture... through the game-board process RIT.1 Read closely to determine what... conclusions drawn from the text. RIT.4 Interpret words and phrases as... choices shape meaning or tone. RIT.10 Read and comprehend complex literary... Interview, Formulating Questions Herd Time RIT. 10 Read and comprehend complex literary... support analysis, reflection, and research. W.10 Write routinely over extended time... matching vocabulary words and definitions RIT.1 Read closely to determine what... conclusions drawn from the text. RIT.4 Interpret words and phrases as... choices shape meaning or tone. RIT.10 Read and comprehend complex literary... support analysis, reflection, and research. W.10 Write routinely over extended time..., Barn Safety and Efficiency Evaluation RIT.1 Read closely to determine what... conclusions drawn from the text. RIT.10 Read and comprehend complex literary... to task, purpose, and audience. W.10 Write routinely over extended time... to build and present knowledge RIT.1 Read closely to determine what... to task, purpose, and audience. W.10 Write routinely over extended time...



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... Symposium, Hyogo-Kobe, Japan July 4 – 10, 2015 J.-P. Porst1*, Jürgen Kuhmann2, Ralf... proven Radio-frequency Ion Thruster (RIT) technology. The current Airbus DS... link the heritage from the RIT-22 development with the new RIT 2X development. It addresses both .... The functional principle of the RIT technology is described and the Airbus DS RIT portfolio is presented including the... of the new generation of RIT 2X thrusters. Achievements from recent... different European test facilities with RIT thrusters of the 5kW/200mN... ISP NHV NSSK PHV rf RIT TMD TPS T = = = = = = = = = = = electron back-streaming... NSAT, Kobe-Hyogo, Japan July 4 – 10, 2015 transfer times higher thrust... adequate thrusters and systems started 10-20 years ago. However, missing.... The outstanding performance of the RIT thrusters with its high ISP..., the evolution of the RIT-22 towards the RIT 2X. The presented...) was conducted with the existing RIT-22. The TMD covered primarily... as link between the past RIT-22 development and the new... the RIT 2X will be presented. II. RIT functional principle The RIT belongs... July 4 – 10, 2015 Figure 1 Principle of stepwise thrust generation in a RIT. Figure 2 Functional principle of a RIT Airbus DS has... of EP systems based on RIT as the principle provides inherent... missions powered with Airbus DS' RIT-10 [2], [3], [4]engines marked milestones in the... electric propulsion based on the RIT technology it was evident that... in the 5kW class [1]. The RIT technology is highly scalable and... DS [5]. The smallest member is RIT-μX, a miniaturized ion thruster for the... range. The RIT-10 and its thrust augmented version RIT-10 EVO are intended... satellites with limited power budget. RIT-15 [6] was developed at Gie... DS' processes and engineering tools, RIT-15 can be made available on a short time scale. The RIT-22 was initially developed to... durability in numerous studies [7]. The RIT 2X series is the current... on the heritage of the RIT-22. 3 Joint Conference of 30th..., Kobe-Hyogo, Japan July 4 – 10, 2015 IV. RIT-22 technology maturity demonstration... the thruster performance. Compared to RIT-22 tests performed before the... the German Space Agency (DLR) [10]. All these successful tests represent... NSAT, Kobe-Hyogo, Japan July 4 – 10, 2015 Performance mappings were conducted... of the RIT 2X ion optics was finalized. For RIT 2X the... significantly lower than for the RIT-22 and thus the designed grid spacing was reduced. RIT thrusters can be operated over... RIT-10 system on ARTEMIS and the tests confirmed its validity for RIT... voltage module for the new RIT 2X system was tested together with the RIT-22. The module has been... new module together with the RIT-22 showed excellent results. The... the PHVS-BB with the RIT-22 was conducted as well... Space Agency (DLR) in Göttingen [10] The tests in Gießen... μFCU was performed with the RIT-22 . The μFCU was installed...\ ZDV VZLWFKHG WR WKH ȝ)&8 7KH RIT-22 was operated at all.... As smooth operation of the RIT-22 LQ FRQMXQFWLRQ ZLWK WKH...\ DQG WKUXVW RSHUDWLRQ of the RIT-22 could be demonstrated. The... NSAT, Kobe-Hyogo, Japan July 4 – 10, 2015 Thruster integration and operation... facility were successful and the RIT-22 operation represents the first... a typical performance mapping of the RIT-22 thruster was performed to... calculated thrust values. VI. RIT 2X Development RIT 2X is the current... on the heritage of the RIT-22. Although the need for... in the evolution towards the RIT 2X thruster. As further increase... expected in the future, the RIT 2X is designed to offer... power and thus extends the RIT family towards high power EP... on the heritage of the RIT-22 and the results from the TMD campaign the RIT 2X thruster series was designed... to the market's need. The RIT 2X series was designed to... a certain level of customization. The RIT 2X thrusters are flexible to... be fulfilled. A 3d rendering of a RIT 2X thruster is shown in..., Japan July 4 – 10, 2015 Figure 5 3d rendering of a RIT 2X series thruster... has been performed with the RIT-22. A variety of aspects could... development program for the new RIT 2X is on schedule and... is completed. The engineering model RIT 2X hardware will be available... [1] D. Di Cara, „Experimental validation of RIT micro-propulsion subsystem performance at... on EURECA,“ IEPC, p. 102, 1993. [10] H. J. Leiter, C. Altmann, J. Kuhmann, J. Kukies, J.-P. Porst.... [11] H. J. Leiter, R. Kukies und R. Killinger, „RIT-22 Ion Engine Development - Endurance... for Ion-Thruster of the RIT-Type, Gießen Univeristy: Inaugural... NSAT, Kobe-Hyogo, Japan July 4 – 10, 2015



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... the Radio Frequeny Ion Thruster RIT XT – A Status Report Hans.J.Leiter... rising and deorbiting. Astrium’s new RIT XT thruster is designed to... given and the components of RIT XT are described. The test..., the radiofrequency ion engines, named “RIT” (Radio frequency Ion Thruster) developed.... This will Up to now, RIT 10 is the solely commercially available... nominal thrust of this engine (“10” characterizes the diameter of the... 15mN (RIT 10 “ARTEMIS” configuration”) up to a peak performance of 40mN (RIT 10 EVO... on a new thruster called RIT XT. III. RIT OPERATION PRINCIPLE Radio Frequency... limitations do not apply for RIT-Engines: The mass flow can... inlet Fig. 2 Function principle of RIT type radio-frequency ion thrusters... further description, that RIT 10 thruster will be named “RIT 10 ARTEMIS” to avoid confusion with the further developed RIT 10 EVO... type of electrostatic ion engines, RIT thrusters need a device for neutralization.... 2.2 Sub-scale Tests (RIT 10 EVO) The evolution of RIT 10 is described because it could be proved that RIT engines... same manner (Development of RIT 10, RIT 15, RIT 35 at Giessen University). This... on the smaller RIT 10 engine. III. RIT XT 2.1. Heritage RIT XT is Astriums... early sixties the NSSK engine RIT 10 has been continuously developed and... the comparison between the RIT 10 ARTEMIS and the RIT 10 EVO is straight... mN. With the modified grid RIT 10 EVO could be operated between... lifetime of thruster’s graphite 3 RIT 10 ARTEMIS RIT 10 EVO 15 mN 3400 s 3700... from 1,5% (RIT 10 ARTEMIS) to approx. 0,7% @ F≤30 mN (RIT 10 EVO). Moreover RIT 10 EVO shows..., the newest measurements of the RIT 10 ARTEMIS thruster’s extraction hole diameters... that the acelerator grids of RIT thrusters are comparably thick (now... RI-Thrusters the testing of RIT 10 EVO is still ongoing. The... Agency [4]. • Reduced specific power consumption: RIT 10 ARTEMIS reaches its nominal thrust... the higher perveance p of the RIT 10 EVO grid set enables the.... Pthruster/F Pmainbus/F RIT 10 ARTEMIS 35 W/mN 37.5 W/mN RIT 10 EVO 25-27... prototype of a 35cm rf-thruster RIT 35, initially developed at Giessen... considered for the development of RIT XT. 2.4 RIT XT Description Summarizing the..., engine lifetime and thruster efficiency. RIT XT is designed to fulfil... during the development of RIT 15LP and RIT 15S, respectively. [4] 4 • NSSK of... ESA-XX or Giessen Universities RIT 35 would have been sufficient... section of RIT XT. The main difference to former RIT engines is... Fig 3: Cross section of RIT XT 5 Thruster RIT XT Ionisation Principle Radio... materials were used in the RIT 10 and its derivatives since many... were performed there. Also all RIT XT tests have been made... main chamber pressure remains below 1 x 10-3 Pa up 6 * refer to vacuum... increased beam current capability, if RIT XT is operated at 1200V... data it is remarkable that RIT XT shows the same linearity... as its smaller relatives RIT 10 EVO and RIT 15°LP (S) (Fig.4). 3.4 Outlook The original design coals for RIT XT have been demonstrated successfully... data and operational behavior of RIT XT a specific impulse of 4500s5000s.... In 2001 the new advanced RIT XT thruster reached the foreseen... and 1500V was demonstrated. The RIT XT thruster with a beam diameter...