Equipment used to make the measurements
Table of Contents
1 Geophone
L22
2 Speedgoat
ADC and DAC:
3 Voltage amplifier
Figure 1: Picture of the voltage amplifier DLPVA
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.