|
Size: 2015
Comment:
|
Size: 1719
Comment:
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| Deletions are marked like this. | Additions are marked like this. |
| Line 12: | Line 12: |
| Measured ||Type||Primary/Single/IN/1-6||Secondary/Double/OUT/2-7||Actuation/ACT/3-8||Reference|| ||GAS Vertical||111.3 Ω||131.2 Ω||208.4 Ω|| 2018-06-26|| ||PI Horizontal 1/3|| || || || || ||PI Horizontal 2/3||117.4 Ω||75.4 Ω||214.0 Ω||2018-06-26|| ||PI Horizontal 3/3|| || || || || |
KAGRA VIS Operations Manual - SRM Suspension Data Reference
LVDT Info
LVDT Coil Info
Copied from BS - check!
Type |
Primary/Single/IN/1-6 |
Secondary/Double/OUT/2-7 |
Actuation/ACT/3-8 |
GAS Vertical |
AWG36, 187Ω, 38 mH |
AWG32, 78Ω, 9.5 mH |
AWG32, 110Ω, 74 mH |
PI Horizontal |
250 Ω |
320 Ω |
155 Ω |
LVDT Coil Info
LVDT Driver Info
Original box for SRM:
LVDT Driver S.N. |
Left card |
Stage |
Resistor value [ohm] |
Reference Signal |
Gain |
Right card |
Stage |
Resistor value [ohm] |
Reference Signal |
Gain |
SRM: SN 1807786 |
R0 |
BF GAS |
60.6 |
5.04 Vpp |
5.04/5.04 = 1.0 |
R0 |
PI LVDT#1 |
50.0 |
5.0 Vpp |
5.0/5.04 = 0.992 |
R1 |
SF GAS |
60.1 |
4.96 Vpp |
4.96/5.04 = 0.984 |
R1 |
PI LVDT#2 |
50.0 |
4.92 Vpp |
4.92/5.04 = 0.976 |
|
R2 |
F0 GAS |
60.7 |
4.96 Vpp |
4.96/5.04 = 0.984 |
R2 |
PI LVDT#3 |
50.5 |
4. Vpp |
5.0/5.04 = 0.992 |
|
R3 |
Not used |
61.2 |
4.94 Vpp |
4.94/5.04 = 0.98 |
R3 |
Not used |
50.8 |
4. Vpp |
4.9/5.04 = 0.972 |
New box for SRM. Adjusting the potentiometers to have the same values:
LVDT Driver S.N. |
Left card |
Stage |
Resistor value [ohm] |
Reference Signal |
Gain |
Right card |
Stage |
Resistor value [ohm] |
Reference Signal |
Gain |
SRM: SN 1403020 |
R0 |
BF GAS |
60.2 |
- Vpp |
- = - |
R0 |
PI LVDT#1 |
50.4 |
- Vpp |
- = - |
R1 |
SF GAS |
60.1 |
- Vpp |
- = - |
R1 |
PI LVDT#2 |
50.3 |
- Vpp |
- = - |
|
R2 |
F0 GAS |
60.7 |
- Vpp |
- = - |
R2 |
PI LVDT#3 |
50.3 |
- Vpp |
- = - |
|
R3 |
Not used |
61.0 |
- Vpp |
- = - |
R3 |
Not used |
50.2 |
- Vpp |
- = - |