Table 1 Devices in field tests.
Device function | Model ID | Device sensitivity (V/m∙s−1) | Measurement range | A/D module | Pass band (Hz) | A/D resolution (nm∙s−1∙bit−1) | Input noise (μVRMS) | Field test application |
|---|---|---|---|---|---|---|---|---|
Data acquisition device | DH5922 | \ | 100 mV,1 V,10 V | 24bits | \ | 0.30 | ≤ 3 | I |
INV3062C | \ | \ | 0.26 | ≤ 0.6 | II, III | |||
INV3065N | \ | \ | 0.26 | ≤ 1 | IV | |||
Vibration sensor | DH610 | 20 | ≤ 0.125 m s−1 | \ | 1 ~ 100 | \ | \ | I |
941b | 23 | \ | 1 ~ 100 | \ | \ | II, III, IV |
