632 B
632 B
Equipment used to make the measurements
Geophone
L22
Speedgoat
ADC and DAC:
Voltage amplifier
Specifications:
- Switchable gain up to 100 dB (x 100,000)
- Bandwidth DC to 100 kHz
- DC-drift 0.6 µV/°C
- Input noise down to 0.4 nV/√Hz
- Switchable AC/DC-coupling
- Local and remote control
- Input impedance up to 1 TΩ
The documentation of the voltage amplifier is accessible here.