Patent ID: 8276456
Filing Date: 2012-10-02
Classification: G01L

Abstract:
1. A differential pressure sensor, comprising; a sensor block comprising internal, oil-filled channels leading into a cavity with a differential pressure sensor element arranged therein, and comprising two respective process diaphragms arranged on the sensor block being directly exposed to respective high-pressure environments with respective pressures to separate between the high-pressure environments and the internal oil channels and to transfer the respective pressures to the respective channels; two respective separating discs arranged on the sensor block in fluid communication with the respective high-pressure environments and capable of blocking the respective pressures against the opposite respective of said internal oil channels; where each of the two respective separating discs bears against a respective abutment face comprising a small opening into that of the oil-filled channels exhibiting the other pressure; and a transverse channel provided between the respective two oil channels, in which transverse channel the cavity containing the differential pressure sensor element is located.