Calibration of FSR

Hello guys I’m a newbie and I need help about the calibration of FSR. My project’s purpose is to create pliers which grab an object. For that I need to calibrate the FSR so that it displays maximal voltage value and minimal voltage value, so that when I manipulate the pliers with a potentiometer I don’t break the grabbed object ; which would mean that the voltage provided by the potentiometer wouldn’t exceed the maximal value provided by the FSR.

Please try again. Since FSRs are variable resistors, "voltage value" has no obvious meaning.

Calibration tutorial.