Voltage Measurement
AssemblyHigh-input-impedance differential amplifier measures potential between ground electrodes; synchronous detection rejects 50/60 Hz mains noise. A full specification article for this item is being written. Meanwhile its bill of materials and connections are below.
Bill of materials for Voltage Measurement
4 top-level lines as of r52760| # | Item / sub-assembly | Part no. | Qty/assy | Ext. qty | Parts | Type |
|---|---|---|---|---|---|---|
| 1 | High-Impedance Buffer | earth-ground-tester-input-amplifier | 1× | 1 | · | part |
| 2 | Lock-In Demodulator | earth-ground-tester-synchronous-demod | 1× | 1 | · | part |
| 3 | 16-Bit ADC | earth-ground-tester-adc-voltage | 1× | 1 | · | part |
| 4 | Low-Pass Filter | earth-ground-tester-filter-lpf | 1× | 1 | · | part |