Hi, I'm working on a project that needs to use some sort of proximity sensor, I've used basic IR distance sensors and ultrasonic sensors before, however for this project I don't think it'll work.
I need a sensor that can be accurate within 1mm difference(my range is about 10-30cm), and that it has to read the distance of a single-point. Other than that, there will be an IR heat lamp heating the object which I am trying to get its distance at the same time.
My current guess is that the IR distance sensors that I used to use will be completely useless under the IR influence, and the ultrasonic sensor, will probably have too much scatter, to get an accurate reading of a single point.
I'm currently looking at HRLV-MaxSonar®-EZ4 and cheap laser range finders, but I'm not really convinced that they would get the work done.
Is there a sensor, or a way to make it possible?