2013-08-12 Measure the AC gain part 2

I've worked some more on a Python script that measures the gain (transfer) of the AC bias of the SQUIDs. To summarize my previous posting on this subject, this measurement assumes that we have put the array SQUID in flux-locked-loop. This also implies that we're dealing with a dual-SQUID configuration

Dual SQUID configuration.png

More on this procedure later.