Imagine a large board with a 1 ft diameter hole offset well from center. Imagine another large round board also with a 1 ft diameter hole offset well from center. The round board is mounted to the front of the back board at it’s center point. The round board rotates slowly such that the two holes line up once per rotation. I’m looking for a sensor that if something like a finger or arm protruded through the two holes while the holes line up, it stops it from getting caught and pinched. With a light pressure the wheel (motor) should stop. Any ideas how this would be setup would be appreciated. Something like the pressure sensor on a garage door only rotational rather than linear. Please let me know. Thanks!
Most systems that are similar use well calculated measurements concerning force and also employ bearings. Depending on your setup, it would be hard to implement any known configuration. So you might want to search around and/or design your own. On another note, it will be hard to have any one design or give any sound advice due to safety concerns and legal issues.
Thanks for the response. Yeah, I’ve already had trouble finding a solution online. I guess that’s why. I respect the law suit issue but you sound a little protective. I hope you haven’t been burned in the past. Be well!