From a previous post of mine, you can see that I am trying to test the efficacy of some AC line filters. I got it to connect properly this time without frying my load, but we cannot seem to replicate the noise seen in the field (where our load is powered off the same input as compressors, air purifiers, other household appliances, etc. and is disrupting the measurements of our onboard analog and digital sensors).
In our lab, we've tried plugging in a compressor to the output of the 24VAC transformer, which is the same supply that is going to our small sensing PCB. However it doesn't seem to be inducing much noise so we cannot tell if the filters are doing anything.