Verfahren zum Herstellen einer Trennmembrananordnung und eine Trennmembrananordnung für einen Druckmeßumformer

摘要

The invention relates to a separating membrane system for a pressure transducer, comprising an inner body (1) with a structured area (3) with annular, wave crest-shaped peaks (4, 4') and wave hollow-shaped troughs (6), a separating membrane (7) which is solidly connected to the inner body (1) on the outside by an annular joint (10), and an outer pressure cap (11). Said pressure cap is pressed against the separating membrane (7), a sealing ring (13) being placed between the two. The aim of the invention is to ensure that the pressure transducer maintains the same measuring characteristics even when there are changes in pressure. To this end, the inner body (1) used is delimited outwards by a wave crest-shaped peak (4') and the pre-cut separating membrane (7) is connected to the inner body (1) with its collar (8) so that it rests outside on the outer wave crest-shaped peak (4'). The separating membrane (7) is then post-cut, and the pressure cap (11) fitted together with the sealing ring (13).