Problem solved. Someone was selling a corrosion testing setup on ebay.
@Warpspeed: I tried doing exactly that, but ran into problems with noise. With the resources at hand, I managed to minimize the noise to 20mV, but need more like 0.5mV.
@DRWeig: I hadn't thought of that and I'm sure that would be a good solution. However, at $1,800 per power supply, this isn't economical for me.
I don't have a ton of experience in analog electronics, so I can't be sure this is possible, but I'm thinking if I found a low noise, adjustable...
I am building a device for corrosion testing. To do corrosion testing, the part being tested is submerged in an electrolyte and a current is passed through it. The voltage source is controlled and the current is measured. These are plotted against one another and at a certain voltage, a...
