I was handed a project to correct a pH circuit design. I have the circuit breadboarded and running.
The problem with the circuit is it is extremely slow to resond to changes in pH, on the order of 10 minutes to go from a pH reading of 7 to 10 (2v to 4.5 v on the op amp output)
The problem with me is that I am not an electronics engineer and do not understand why the circuit has such a slow response.
Can someone please explain to me why the responce rate is so slow and more importantly how do I correct it?
thanks
The problem with the circuit is it is extremely slow to resond to changes in pH, on the order of 10 minutes to go from a pH reading of 7 to 10 (2v to 4.5 v on the op amp output)
The problem with me is that I am not an electronics engineer and do not understand why the circuit has such a slow response.
Can someone please explain to me why the responce rate is so slow and more importantly how do I correct it?
thanks