Oil-filled temperature and pressure combined sensor
2011
The invention relates to an oil-filled temperature and pressure combined sensor, belonging to the technical field of temperature and pressure combined sensors. The oil-filled temperature and pressure combined sensor solves the problem that signals in a local area cannot be measured at the same time when a temperature and pressure combined sensor which is formed by two kinds of sensors in an assembling way. The oil-filled temperature and pressure combined sensor consists of a pipe seat, a pressure chip, a temperature chip, a gold wire lead, a silver-palladium wire, an external leading-out wireharness, a ceramic ring, a blocking plug, a corrugated diaphragm and a pressing ring. The pressure chip and the temperature chip are assembled in the pipe seat in a short distance and are welded on the pipe seat in a eutectic brazing way. When the oil-filled temperature and pressure combined sensor is used, after oil is filled in vacuum, the pressure chip and the temperature are protected at the same time and then pressure is sensed by the corrugated diaphragm. The oil-filled temperature and pressure combined sensor is suitable for the simultaneous measurement of the temperature and the pressure in the local area.
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