| 摘要 |
The invention relates to a pressure sensor comprising a housing (17, 51), in particular a metal housing (17, 51), a pressure measurement cell (1), in particular a ceramic pressure measurement cell (1), clamped in the housing (17, 51) between a shoulder (21), surrounding all sides on the outside of an opening (19) of the housing (17), and a counter bearing (23), which pressure measurement cell has a measurement diaphragm (7) arranged on a base body (3) including a pressure measurement chamber (5), and which measurement diaphragm (7) can be applied with a pressure (p) via the opening (21). The pressure measurement cell (1), in particular the measurement diaphragm (7), is protected against thermo-mechanical stresses acting in the radial direction, wherein an adjustment body (27, 31, 33) is arranged between an outer edge of the measurement diaphragm (7) and the shoulder (21), said adjustment body having a thermal expansion coefficient which falls from a thermal expansion coefficient corresponding to a thermal expansion coefficient (α M ) of the shoulder (21) to a thermal expansion coefficient corresponding to a thermal expansion coefficient (α k ) of the measurement diaphragm (7), along the adjustment body (27, 31, 33) in a direction running from the shoulder (21) to the measurement diaphragm (7). Nothing to translate |
