Nanometrics HRD-24

Gains

These responses reflect a preamplifier gain of 1. Gains can be adjusted by adding resistors to the A/D board to adjust for sensor impedance. If the gain has been adjusted in this manner, these responses will need to have their gain adjusted accordingly.

DC Filter

The Library includes a response for a final IIR DC removal filter with a low-frequency corner of 1 mHz (0.001 Hz) as an example. The filter corner can be set to any value of integer mHz between 1 and 1000 mHz. For other corner frequency values, set the pole for this filter instead to the selected corner frequency times 2 * pi.