| 摘要 |
A pressure-measuring device has an initial pressure-measuring cell (1') with a first thermal expansion coefficient (alpha1), a first housing (1), which is surrounded circumferentially by a second housing (1) having a second thermal expansion coefficient (alpha2) which is greater than the first thermal expansion coefficient (alpha1), and an O-ring, which is positioned between the pressure-measuring cell (1') and the second housing (2), such that a third housing (3) is provided which circumferentially encloses both the pressure-measuring cell (1') and the second housing, (2) and which has a third thermal expansion coefficient (alpha3) that is less than or equal to the first thermal expansion coefficient (alpha1).
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