I am using a linear actuator, that has an acme screw type of actuator. It will be used to apply up to 400 lbs of force to a gripper mechanism. I want to sense the force at the end of the actuator, which has a 3/8" dia rod-end type of connection, using a clevis pin. Ideally, it would have a 0-5v output for easy interfacing to an Arduino.
I have found clevis-pin type of strain sensors, but they seem to be very expensive. One was $900, and I need 3.