DESIGN FOR CORROSION RESISTANT PRESSURE SENSOR USING CONTROLLED LEAK PRINCIPLE

A device for measuring pressure of ammonia or a gas mixture comprising ammonia or another corrosive gas, the device comprising: a pressure sensor, a housing of the pressure sensor, wherein the pressure sensor comprises a membrane, the membrane separating an ammonia pressure space from a non-pressure space and having a side directly exposed to ammonia and being able to exhibit a physical response to ammonia pressure, and a transducer located in the non-pressure space and capable of converting the physical response of the membrane to ammonia pressure into a transmittable pressure signal, whereina double sealing structure is provided between the ammonia pressure space and the non-pressure space having first and second sealings, wherein an intermediate space between the first and second sealings is in communication with outside the housing by means of an outlet. 一种用于测量氨或包括氨或另一种腐蚀性气体的气体混合物的压力的装置，所述装置包括：压力传感器；所述压力传感器的壳体；其中，所述压力传感器包括：膜，所述膜将氨压力空间与非空间隔开并且具有直接暴露于氨的侧面并且能够表现出对氨压力的物理响应；和换能器，其位于所述非压力空间中并且能够将所述膜对所述氨压力的所述物理响