New High-precision Reference Pressure Transducers from 1 MPa to 50 MPa

Abstract

Calibration laboratories prefer to use piston manometers (dead-weight testers) for calibrating pressures in the range from a few pascals up to 1 000 MPa. The high-precision pressure transducer P31AP is an alternative that can be calibrated as a secondary pressure standard and used as a reference pressure transducer. When using reference pressure transducers a simple manual or motor-driven pressure source should be available. The test pressure has no longer to be produced precisely as the actual pressure value can be measured by the reference pressure transducer at any time. Therefore there is nothing to prevent complete computer-controlled calibration of pressure transducers.