Type-A Tower ETMX Specification
Contents
IP
Geophone (GEO)
LVDT
Sensor |
Efficiency [um/cnt] |
LVDT H1 |
-0.258 |
LVDT H2 |
-0.252 |
LVDT H3 |
-0.233 |
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 |
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Driver IP address: 10.68.150.46 |
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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 |
Fishing Rod (stepper motor)
Epics channel name: K1:STEPPER_EXV_GAS |
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Driver IP address: 10.68.150.45 |
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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
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.
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)
#||Sensor||Efficiency [(um/s^2)/cnt]|| #|| ACC H1 (SN7) ||<)> -5.288 || #|| ACC H2 (SN8) ||<)> 5.830 || #|| ACC H3 (SN5) ||<)> -5.289 || #
#
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