| 摘要 |
A pressure-measuring cell (3) is described, with a basic body (7) and a ceramic measuring membrane (11), which is arranged on the basic body (7) enclosing a pressure-measuring chamber (9) and can be subjected from the outside to a pressure (p) to be measured, which pressure-measuring cell can be inserted without the use of seals into a metallic housing (1, 39) or into a metallic housing section (53) by the basic body (7) being composed of metal, and basic body (7) and measuring membrane (11) are connected to each other via an adaptation body (15) which surrounds the pressure-measuring chamber (9) laterally on the outside and has a thermal coefficient of expansion which, along the adaptation body (15) in a direction running from the basic body (7) to the measuring membrane (11), drops from a coefficient of expansion corresponding to a thermal coefficient of expansion (OM) of the basic body (7) to a coefficient of expansion corresponding to a thermal coefficient of expansion (ακ) of the measuring membrane (11). |
