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Size: 4446
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Transmission Monitor's Vibration Isolation Stage for Y (TMS-VISY): preparation in Mitaka
- TMS = BRT (beam reducing telescope) + GPT (Gouy phase telescope)
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Links to knowledge
![/!\](/moin_static193/modern/img/alert.png "/!\"){kind=small}
Edit conflict - other version:
Edit conflict - your version:
End of edit conflict
Mechanical design: Mechanical design of TMS Vibration Isolation Stage (by Uraguchi-san)
Ref: design of blade spring for TMS VIS stage (in Japanese) (by Uraguchi-san)
Ref: mechanical model of TMS VIS (in Japanese) (by Uraguchi-san)
LVDTs
Polarity & Calibration Factor
- V: postive means that the LVDT outputs positive counts when TMS-VIS moves upward, and so the calibration factors are set.
- H: postive means that the LVDT outputs positive counts when TMS-VIS moves positive yaw (counter clock wise from top view), and so the calibration factors are set.
Sensor |
Serial# |
polarity |
calibration factor |
LVDT V1 |
# |
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LVDT V2 |
# |
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LVDT V3 |
# |
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LVDT H1 |
# |
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LVDT H2 |
# |
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LVDT H3 |
# |
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Actuator coils
Be careful! The pin assignment in the Dsub shell or the signal phases would be different from the below, as I needed to once detach the pins when I installed the coils (Akutsu). Note that newly four actuator coils have been made for TMS-VISY after JGW-T1800846.
- [[]]
- Tanioka-kun's efforts in 2019
Polarity & Calibration Factor
- V: postive means upward (TMS-VIS moves in upward by inputting positive value to the act coils from MEDM)
- H: positive means plus yaw (TMS-VIS moves in counter clock wise from top view by inputting positive value to the act coils from MEDM)
Actuator |
polarity |
Serial# |
COIL V1 |
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# |
COIL V2 |
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# |
COIL V3 |
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# |
COIL H1 |
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# |
COIL H2 |
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# |
COIL H3 |
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# |
Geophones
Serical# of L-4C |
Vert/Horiz |
Naming of the assembled unit |
Assembler |
404080975 |
Vert |
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404080976 |
Vert |
TMS-VISX: Geo-V2 |
Akutsu |
404080977 |
Vert |
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404080978 |
Vert |
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404084240 |
Vert |
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404084241 |
Vert |
TMS-VISX: Geo-V3 |
Akutsu |
404084242 |
Vert |
TMS-VISX: Geo-V1 |
Fujii -> Akutsu |
2 |
Horiz |
TMS-VISX: Geo-H3 |
Akutsu -> Uraguchi |
3 |
Horiz |
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4 |
Horiz |
TMS-VISX: Geo-H1 |
Akutsu |
5 |
Horiz |
TMS-VISX: Geo-H2 |
Akutsu |
15 |
Horiz |
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16 |
Horiz |
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17 |
Horiz |
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Cabling
- LVDT/Act - (coil wires) - Dsub9M - (Dsub9F - PTFE 2m - Dsub9F) - Dsub9M flange - Flipper cable - Dsub Cable
- Geophone - (MIL C 26482 - PTFE 0.5m - Dsub9M) - (Dsub9F - 1.5m PTFE - Dsub9F) - Dsub9M flange - Flipper cable - Dsub Cable