These responses assume a damping factor of 0.707 and natural frequency of 1 Hz. For other damping factors or natural frequencies, the poles need to be recalculated as follows:
Manufacturer | Model | Period/Frequency | Sensitivity | Coil Resistance | RESP Filename | Comments |
Geotech | GS-13 | 1 s / 1 Hz | 2180 V/M/S | 9100 Ohms | RESP.XX.NS306..SHZ.GS13.1.2180 | Geotech |
Geotech | S-13J | 1 s / 1 Hz | 344 V/M/S | 6400 Ohms | RESP.XX.NS307..SHZ.S13J.1.344 | Geotech |
Geotech | BB-13 | 0-0.05 s / DC-20 Hz | 102 V/M/S**2 | RESP.XX.NS366..BNZ.BB13.DC_20.102 | Geotech |
Mary Templeton 4/19/2023