Heated hot-film air-mass sensor

Heated hot-film air-mass sensor

To determine air mass flows, especially for controlling internal combustion engines, a hot-film air-mass sensor is provided, which may be used especially for sensing air mass flows in the intake tract of an internal combustion engine. The hot-film air-mass sensor has a sensor chip having a sensor fr...

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Hauptverfasser: Renninger, Erhard, Hueftle, Gerhard, Brueckner, Joerg, Opitz, Bernhard, Kuenzl, Bernd, Konzelmann, Uwe, Wagner, Ulrich, Marberg, Henning, Gmelin, Christoph, Illian, Matthias
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creator Renninger, Erhard
Hueftle, Gerhard
Brueckner, Joerg
Opitz, Bernhard
Kuenzl, Bernd
Konzelmann, Uwe
Wagner, Ulrich
Marberg, Henning
Gmelin, Christoph
Illian, Matthias
description To determine air mass flows, especially for controlling internal combustion engines, a hot-film air-mass sensor is provided, which may be used especially for sensing air mass flows in the intake tract of an internal combustion engine. The hot-film air-mass sensor has a sensor chip having a sensor frame and a sensor diaphragm having at least one heating element and at least two temperature sensors. Furthermore, the hot-film air-mass sensor has a chip carrier for mounting the sensor chip, as well as at least one additional heating element. The sensor chip is able to be heated up using the at least one additional heating element, which is inserted into the chip carrier. Compared to the usual devices, the hot-film air-mass sensor has a lower susceptibility to contamination, especially by oil films.
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title Heated hot-film air-mass sensor
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