FIELD: engine devices and pumps.
SUBSTANCE: pressure sensor (11) comprises a sensor housing (13) with at least one pressure measuring cell (DZ) installed therein with an associated sensor electronics (ASIC), and at least one pressure measuring cell (DZ) connected to pipeline (9; 10; 12) for measuring medium, in particular, with the measuring pipeline for the exhaust gas as a pipeline for the measuring medium. According to the invention, a thermostatic device (14) is provided for the sensor (11) in order to increase the measurement accuracy. Thermostatic device (14) is formed due to the fact that the thermostatic fluid (17) is guided through the sensor housing (13). Temperature in the sensor housing (13) is held at a constant temperature level by controlled heating, preferably by electrical heating (18) and/or by adjusting the volumetric flow of thermostatic fluid (17).
EFFECT: creation of high-precision pressure sensor in the exhaust system of internal combustion engine.
15 cl, 2 dwg
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