How to Test a Potentiometer: 6 Steps (with Pictures) - wikiHow
How to Test Potentiometer(Find Bad Potentiometer) - Leets academy
Linear potentiometer for length measurement [Sauter LD 700] Length measurement system, incl. Force-displacement data transfer software AFH LD, Measuring range [Max]: 700 mm, Readout [d]: 0,01 mm : Amazon.co.uk: DIY & Tools