High accuracy press. difference simulation for sensor testing - uses vertically sliding sensor mounting in high press. chamber

摘要

A simulation device for press. differences with high accuracy at high absolute pressures is suitable for calibration of high sensitivity measurement equipment, i.e. press. sensors. The press. differences are simulated in a chamber with high inner press. The press. sensor can be slid vertically inside the chamber to heights corresp. to the desired press. difference. The sensor is mounted on a sliding frame guided by tubes and driven by a motor via a spindle and meshed nut attached to the frame. The frame and sensor end positions are determined by a control element connected to the motor and using mechanical optical, or electrical position sensing.