Quote:
Originally Posted by TAlholm
So I'm embarking on a project. I am in need of linear sensors for distance traveled. I am looking at the string potentiometer from AndyMark, but would like to know if anyone has experience with any other form.
IR sensors are not going to work for the project as the risk of the sensors getting feedback from another is too high.
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Do you have more details on the application? Is the sensor attached to something moving or is it measuring something else that's moving? Are you driving an elevator or measuring distance driven on the ground?
I'd be inclined to go with a potentiometer or encoder if you have anything rotating relative to the linear motion, like a motor spinning a shaft to drive an actuator or belt, or a tracking wheel spinning on the ground.
Are you measuring to a moving plane? An ultrasonic sensor might work.