Here I describe the measurement of the sensing matrix.
There were two reasons why I have been measuring the sensing matrix :
I will report #2 later because it needs another careful noise estimation.
In order to measure the sensing matrix, the basic steps are something like this:
Calibration of the LOCKINs
Calibration of the responses to watts/meter
Settings and parameters
Tonight I measured the sensing matrix again but this time I recorded them as a function of time using the realtime LOCKINs in the LSC front end.
I will explain some more details about how I measured and calibrated the data in another elog entry.