| 摘要 |
The pressure sensor for hydrostatic filling level measurement consists of a base body (1), which is recessed on both sides and on one side of which there is mounted an elastically deformable diaphragm (3) and on the other side a non-deformable cover plate (6). The body (1) forms a first chamber (9) with the diaphragm (3), and a second chamber (10) with the cover plate (6). The body consists of a metallic ring (1a) and a glass insert (1b). The diaphragm (3), body (1a) and cover plate (6) are connected to one another firmly and in an electrically conductive fashion. Layer electrodes (8 and 12) are arranged on the surfaces (7 and 11) of the insert (1b). The diaphragm (3) and the layer electrode (8) form a measuring capacitor, and the cover plate (6) and the layer electrode (12) a reference capacitor. The layer electrodes (8 and 12) of the capacitors can be connected electrically via axially parallel connecting pins (18, 19) which are led in an electrically insulated fashion through the cover plate (6). <IMAGE> |
