Patent ID: 8943895
Filing Date: 2015-02-03
Classification: G01L

Abstract:
1. A pressure sensor, comprising: a probe body comprising a pressure deflectable diaphragm end formed of a first material having a first coefficient of thermal expansion, the diaphragm end including a first surface at least partially defining a first portion of a capacitor; a relatively non-deformable component formed of a second material having a second coefficient of thermal expansion, the relatively non-deformable component including a second surface spaced from the first surface, the second surface at least partially defining a second portion of the capacitor; and an intermediate component disposed at a peripheral region, the intermediate component isolating the pressure deflectable diaphragm end and the relatively non-deformable component from each other, the intermediate component being formed of a third material having a third coefficient of thermal expansion; wherein the third coefficient of thermal expansion is less than the first coefficient of thermal expansion.