1.8 KiB
Measurements
- Measurement of the slip-ring noise when turning
- Measuremeent of the noise of the slip-ring when turned ON using geophones
- Measure of the ground and marble velocity
- Measure of the vibration when rotating the Slip-ring and Ty
- Measure of the vibration induced by Ty motion
Measurement of the slip-ring noise when turning
Voltage amplifier:
- 60db
- AC
- 1kHz
Additionnal LPF at 1kHz
- meas30: All off
- meas31: Slip-ring on
- meas32: slip-ring 6rpm
- meas33: slip-ring 60rpm
Channel 1: direct Channel 2: slip-ring
Measuremeent of the noise of the slip-ring when turned ON using geophones
Voltage amplifier:
- 60db
- AC
- 1kHz
Additionnal LPF at 1kHz
- meas35: All off
- meas36: slip-ring ON
geophone at the sample location slit into 2 BNC:
- first one (column one): direct wire
- second one (second column): slip-ring wire
Each of the signal is amplified by voltage amplifier:
- 60db
- AC
- 1kHz
Additionnal LPF is added before the voltage amplifiers
Measure of the ground and marble velocity
One geophone is located on the marble, the other one on the floor.
col1: floor col2: marble
Each of the signal is amplified by voltage amplifier:
- 60db
- AC
- 1kHz
- meas 37: Z direction
- meas 38: N direction
- meas 39: E direction
Measure of the vibration when rotating the Slip-ring and Ty
All the stages are OFF except Ty and Slip-Ring.
Each of the signal is amplified by voltage amplifier:
- 40db!!!
- AC
- 1kHz
col1: marble col2: sample
Rotating the slip-ring at 60rpm and scans with the Ty at 1Hz. Everything on the Z direction
- meas 50: Rz at 1Hz, Ty OFF
- meas 51: Rz at 1Hz, Ty ON (The current and cnt error of Ty is also registered)
- meas 52: Rz at 1Hz, Ty 1Hz 600000cnt
Measure of the vibration induced by Ty motion
One geophone at the sample position One geophone on the marble
Each of the signal is amplified by voltage amplifier:
- 40db!!!
- AC
- 1kHz
col1: marble col2: sample
Ty Scans:
- sin @ 1Hz with amplitude = 600 000 cnt (= 3mm)
- meas 40: Z direction
- meas 41: E direction
- meas 42: E direction without any motion (Ty OFF)