Filling level measurement on a barrel pump

For this measurement task, the barrel stands on the platform of the hydraulic press. There is one hydraulic cylinder each on the left and right. Both cylinders are connected to each other by a cross beam. In the middle of this is a piston which is pressed into the barrel. A wireSENSOR WDS-P60 string potentiometer sensor is mounted on the outside of the crossbar.

The wire shortens and the sensor thus measures the decreasing lifting height of the cylinder via the potentiometer. Subsequently, the analog output signal is transferred to a controller.