PRM suspension information
Contents
position
FARO measurement
- mirror position offset relative to the tank: (+4.7, +4.6, -1.5)
- NOTE: this was measured before inner frame tilt was fixed.
GAS default height (LVDT readout)
suspension parameters
resonant frequencies
position of the COM
calculated from the resonant frequencies.
sensor & actuator parameters
Oplev calibration
OSEM
Calibration
Coil resistance
TM
- H1: 15.7 Ohm
- H2: 15.8 Ohm
- H3: 16.0 Ohm
- H4: 15.8 Ohm
LVDT
Calibration
Coil resistance
SF
- Primary: 72.5 Ohm
- Secondary: 200 Ohm
- Actuator: 106 Ohm
BF
- Primary: 81.6 Ohm
- Secondary: 202 Ohm
- Actuator: 114 Ohm
actuation efficiency