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Revision 87 as of 2017-12-27 22:28:26
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Editor: KokiOkutomi
Comment:
Deletions are marked like this. Additions are marked like this.
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#||'''Sensor'''||'''Efficiency [(um/s^2)/cnt]'''||
#|| ACC H1 (SN7) ||<)> -5.288 ||
###||'''Sensor'''||'''Efficiency [(um/s^2)/cnt]'''||
###|| ACC H1 (SN7) ||<)> -5.288 ||

Type-A Tower ETMX Specification


IP

IPconfig_ETMXv2.png

Geophone (GEO)

LVDT

Sensor

Efficiency [um/cnt]

LVDT H1

-0.258

LVDT H2

-0.252

LVDT H3

-0.233

calibLVDT_ETMX_IPH1_20171012.png calibLVDT_ETMX_IPH2_20171012.png calibLVDT_ETMX_IPH3_20171012.png

Actuator polarization

Polarity is determined so that an +offset at the COILOUTF applies +yaw force in each actuator.

  • COIL H1: negative
  • COIL H2: negative
  • COIL H3: positive

Diagonalization matrix

  • ACC2EUL

H1

H2

H3

To:

0.6440

-0.1726

-0.4714

Long.

0.1726

-0.6440

0.4714

Trans.

0.6833

0.6833

0.6833

Yaw

  • LVDT2EUL

H1

H2

H3

To:

0.6666

-0.3333

-0.3333

Long.

0

-0.5774

0.5774

Trans.

0.5612

0.5612

0.5612

Yaw

  • EUL2COIL

Long.

Trans.

Yaw

To:

1.

0

0.5940

H1

-0.5000

-0.8660

0.5940

H2

-0.5000

0.8660

0.5940

H3

Stepper motor

Epics channel name: K1:STEPPER_EXV_IP

Driver IP address: 10.68.150.46

Motor 0

Motor 1

Motor 2

Motor 3

Motor 4

Motor 5

F0 Yaw

IP H1

IP H2

IP H3

<blank>

<blank>

GAS

LVDT

Sensor

Efficiency [um/cnt]

F0 LVDT GAS

-0.172

F1 LVDT GAS

-0.215

F2 LVDT GAS

-0.243

F3 LVDT GAS

-0.225

BF LVDT GAS

0.204

calibLVDT_ETMX_F0GAS20171012.png calibLVDT_ETMX_F1GAS20170907.png calibLVDT_ETMX_F2GAS20170822.png

calibLVDT_ETMX_F3GAS20170803.png calibLVDT_ETMX_BFGAS20170725.png

Fishing Rod (stepper motor)

Epics channel name: K1:STEPPER_EXV_GAS

Driver IP address: 10.68.150.45

Motor 0

Motor 1

Motor 2

Motor 3

Motor 4

Motor 5

F0 GAS

F1 GAS

<blank>

F3 GAS

BF GAS

F2 GAS

Movable range

  • F0 GAS:
  • F1 GAS:
  • F2 GAS:
  • F3 GAS:
  • BF GAS: full range (11 mm)

BF

BFconfig_ETMXv2.png

LVDT (BF Damper)

Sensor

Efficiency [um/cnt]

LVDT V1

-0.3785

LVDT V2

0.3852

LVDT V3

0.3902

LVDT H1

0.4060

LVDT H2

-0.3821

LVDT H3

-0.3629

Note: The polarities are determined to output positive signals when the BF shifts respectively to +vertical/+yaw direction for Vertical/Horizontal LVDTs.

calibLVDT_ETMX_BFV1_20170802.png calibLVDT_ETMX_BFV2_20170802.png calibLVDT_ETMX_BFV3_20170803.png

calibLVDT_ETMX_BFH1_20170802.png calibLVDT_ETMX_BFH2_20170802.png calibLVDT_ETMX_BFH3_20170802.png

Actuator polarization

Polarity is determined so that an +offset at the COILOUTF applies +yaw force in each actuator.

  • COIL V1: ???
  • COIL V2: ???
  • COIL V3: ???
  • COIL H1: positive
  • COIL H2: negative
  • COIL H3: negative

Note: Polarity may change when connecting the secondary coil to the cable. This configuration is confirmed on [2017.10.27]

Diagonalization matrix

  • LVDT2EUL

V1

V2

V3

H1

H2

H3

To:

0

0

0

-0.6667

0.3333

0.3333

Long.

0

0

0

0

0.5774

-0.5774

Trans.

0.3333

0.3333

0.3333

0

0

0

Vert.

0.9158

0.9158

-1.8315

0

0

0

Roll

1.5861

-1.5861

0

0

0

0

Pitch

0

0

0

0.8170

0.8170

0.8170

Yaw

  • EUL2COIL

L

T

V

R

P

Y

To:

0

0

1.

0.1820

0.3152

0

V1

0

0

1.

0.1820

-0.3152

0

V2

0

0

1.

-0.3640

0

0

V3

-1

0

0

0

0

0.4080

H1

0.5

0.8660

0

0

0

0.4080

H2

0.5

-0.8660

0

0

0

0.4080

H3

Appendix

Accelerometer (ACC)

#|| ACC H2 (SN8) ||<)> 5.830 || #|| ACC H3 (SN5) ||<)> -5.289 || #calibACC_sn7_20171016.png #calibACC_sn8_20171016.png #calibACC_sn5_20171017.png

KAGRA/Subgroups/VIS/TypeA/ETMX (last edited 2022-03-07 11:29:59 by hiromi.yasui)