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= Transmission Monitor's Vibration Isolation Stage: preparation (TMS-VIS) = = Transmission Monitor's Vibration Isolation Stage for X: preparation (TMS-VISX) =

Transmission Monitor's Vibration Isolation Stage for X: preparation (TMS-VISX)

  • With a fixed stage.
  • TMS = BRT (beam reducing telescope) + GPT (Gouy phase telescope)

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LVDTs

Be careful! The pin assignment in the Dsub shell or the signal phases would be different from the below for #1 and #2, as I needed to once detach the pins when I installed the LVDTs (Akutsu).

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

negative

-0.149 [um/cnt]

LVDT V2

positive

0.138 [um/cnt]

LVDT V3

negative

-0.135 [um/cnt]

LVDT H1

positive

0.154 [um/cnt]

LVDT H2

positive

0.146 [um/cnt]

LVDT H3

positive

0.150 [um/cnt]

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).

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

positive

COIL V2

positive

COIL V3

positive

COIL H1

negative (obsolete) ->

COIL H2

positive (obsolete)->

COIL H3

positive (obsolete) ->

Geophones

Serical# of L-4C

Vert/Horiz

Naming of the assembled unit

Assembler

404080975

Vert

404080976

Vert

TMS-VISX: Geo-V2

Akutsu

404080977

Vert

404080978

Vert

404084240

Vert

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

4

Horiz

TMS-VISX: Geo-H1

Akutsu

5

Horiz

TMS-VISX: Geo-H2

Akutsu

15

Horiz

16

Horiz

17

Horiz

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
  • PTFE cables

Task list

Note: some of the tasks can be done in parallel.

Signal Assign

Pin Name

Resistance

Equipment

Assign

Comment1

Comment2

Connection

KAGRA/subgroup/AOS/TMS-VIS0 (last edited 2018-10-24 19:00:52 by TomotadaAkutsu)