the resistance is non linear. It changes as reaction proceeds. We prefer to use a DC current to drive the reaction.Typically with 30mA constant current, the voltage drop across the reaction cell rises to 35V in 3-4 secs, remains constant later on. As I=const, and V=IR, resistance increase due to oxide growth in the reaction cell is monitored by measuring voltage.
I want to build a pulse drive circuit that can drive the above load. So, the task is
build a current pulse generator that can produce pulses of say 30-50mA , the compliance voltage of the current source must be atleast 35V, but 60V will give good margin. How do i go about it?