The HgCdTe photodiodes on the TCS CO2 laser tables have had their calibration updated.  The outputs are now calibrated in volts at the PD.  I've stored the new calibrations in filter banks, such that both filters need to be turned on to get correct calibration of the channel and no other gain needs to be set.

The DC inputs have:

Filter 1) Convert from counts to volts

Filter 2) Divide by gain of 510 to give voltage at the photodiode

The AC inputs have:

Filter 1) Convert from counts to volts

Filter 2) De-whiten signal.  Initial whitening is AC coupled with a pole at 20Hz and a high frequency gain of 105dB.  We have reversed this with a filter that has high frequency gain of -105dB, a zero at 20Hz and a pole well below any frequency we care about at 0.01Hz (we didn't put the pole at 0Hz because we don't want this thing integrating continuously).