Sercel L-28LB Sensor Responses

Coil and shunt resistance values affect the sensitivity and pole values. To calculate poles, zeros and sensitivities for L-28LBs built with other resistor values, or to take datalogger impedance into account, click here.

Note:

These responses assume that the input resistance of the attached amplifier or datalogger is at least 2 orders of magnitude larger than the shunt resistance. If this is not the case, total dampling will not be 100% assumed below and the poles will not describe the system accurately.

Manufacturer Model Frequency / Period Coil Resistance Shunt Resistance Sensitivity RESP Filename Source Comments
Sercel L-28LB 4.5 Hz / 0.5 s 395 Ohms None 31.3 V/M/S RESP.XX.NS382..SHZ.L28LB.395.NONE.4_5.31_3 Sercel
Sercel L-28LB 4.5 Hz / 0.5 s 395 Ohms 2490 Ohms 27.0 V/M/S RESP.XX.NS361..SHZ.L28LB.395.2490.4_5.27 Sercel PASSCAL
Sercel L-28LB 4.5 Hz / 0.5 s 630 Ohms None 39.5 V/M/S RESP.XX.NS383..SHZ.L28LB.630.NONE.4_5.39_5 Sercel
Sercel L-28LB 4.5 Hz / 0.5 s 630 Ohms 3971 Ohms 34.1 V/M/S RESP.XX.NS384..SHZ.L28LB.630.3971.4_5.34_1 Sercel
Sercel L-28LB 4.5 Hz / 0.5 s 630 Ohms 6097 Ohms 35.8 V/M/S RESP.XX.NS385..SHZ.L28LB.630.6097.4_5.35_8 Sercel
Sercel L-28LB 4.5 Hz / 0.5 s 630 Ohms 11874 Ohms 37.5 V/M/S RESP.XX.NS386..SHZ.L28LB.630.11874.4_5.37_5 Sercel

Mary Templeton 6/28/2016