Process for detecting pressure variations in a gas or liquid and pressurevariation detector designed for this process

摘要

The process consists in transforming a pressure measurement into a distancemeasurement and this distance measurement into a radiation intensitymeasurement, which is to say that it consists in detecting at a given pointin space the variation of the intensity of any radiation produced by thevariation of the position of a membrane (3) disturbed by a pressure P.IMAGE