The Simultaneous Measurement of Pressure in Rotating System

Pressure transducers for pressure measurement of rotating disk surface have to rotate with the disk and this may give rise to the difficulty that measuring error may be unavoidable due to the membrane deformation caused by the centrifugal force.A real time local calibration,thus,has to be introduced for an accurate pressure measurement.A device was installed onto the test rig to generate a standard pressure source under rotating frame and this standard pressure was used for real time calibration.