METHOD AND DEVICE FOR VERIFICATION AND/OR CALIBRATION OF A PRESSURE SENSOR

摘要

A method for calibrating a pressure sensor includes connecting the pressure sensor to first and second fluid storage vessels; providing an initial fluid pressure at the pressure sensor and at the fluid storage vessels; and carrying out a pressure measurement of the initial fluid pressure at a time t0. The method then disconnects the second fluid storage vessel from the pressure sensor and the first fluid storage vessel; provides a first fluid pressure at the second fluid storage vessel; and carries out a pressure measurement of the first fluid pressure at a time t1. The method then connects the second fluid storage vessel with the pressure sensor and the first fluid storage vessel, so that a second fluid pressure between the initial and first fluid pressures is provided at the pressure sensor; and carries out a pressure measurement of the second fluid pressure at a time t2.

主权项

1. A method for carrying out a verification and/or a calibration test on a pressure sensor (3), the method comprising the steps of:
fluidly connecting the pressure sensor (3) to a first fluid storage vessel (17); fluidly connecting the pressure sensor (3) to a second fluid storage vessel (21); providing an initial fluid pressure p0 at the pressure sensor (3), the first fluid storage vessel (17) and the second fluid storage vessel (21); carrying out a pressure measurement of the initial fluid pressure p0 at a time t0 by means of the pressure sensor (3); fluidly disconnecting the second fluid storage vessel (21) from the pressure sensor (3) and the first fluid storage vessel (17) providing a first fluid pressure p1 at the first fluid storage vessel (17); carrying out a pressure measurement of the first fluid pressure p1 at a time t1 by means of the pressure sensor (3); fluidly connecting the second fluid storage vessel (21) with the pressure sensor (3) and the first fluid storage vessel (17), so that a second fluid pressure p2 is provided at the pressure sensor (3), wherein the second fluid pressure is between the initial fluid pressure p0 and the first fluid pressure p1; carrying out a pressure measurement of the second fluid pressure p2 at a time t2 by means of the pressure sensor (3).