Relative pressure sensor for detecting difference between media and atmospheric pressure, has step formed between front surfaces of reference air pipe, where step forms radial stop for adhesive, and stop limits substrate body at air pipe

摘要

The sensor has a reference pressure chamber formed between a measuring membrane (14) and a substrate body (3) of a pressure measuring transformer (1), where the substrate body is connected with a carrier body by a pressurized adhesive (7). The carrier body has a reference air pipe (5) with a front side. An outer circular front surface (9) of the front side axially projects opposite to an inner circular front surface (8) such that a step is formed between the front surfaces. The step forms a radial stop for the adhesive, where the stop limits the substrate body at the pipe.