I have an application where I am trying to monitor a defect in a web based manufacturing process.
This defect can be seen if one side of the substrate is lighted and the transmitted light is viewed from the other side. When the defect occurs a change in the transmitted light is noticed.
I am looking for a commercial sensor which I can use to give me an analog signal.
I also want to experiment with a sensor on a breadboard to get an understanding of how a change of light translates into an electronic signal.
My application will require a very low response time as the speed of my process will result in the defect being in front of the sensor for less than a millisecond.
Any direction on sensors or components will be appreciated.