Sensor device

A sensor device includes: a housing body delimiting within the housing body: a flow duct, and a bypass that branches off from the flow duct at a branching point, the bypass having a wall with an opening; and a sensor element configured to detect a gas content, the sensor element being arranged in th...

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Bibliographic Details
Main Authors Grass, Philippe, Ante, Johannes
Format Patent
LanguageEnglish
Published 22.05.2018
Subjects
INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES
MEASURING
PHYSICS
TESTING
TESTING STATIC OR DYNAMIC BALANCE OF MACHINES ORSTRUCTURES
TESTING STRUCTURES OR APPARATUS NOT OTHERWISE PROVIDED FOR
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Summary:A sensor device includes: a housing body delimiting within the housing body: a flow duct, and a bypass that branches off from the flow duct at a branching point, the bypass having a wall with an opening; and a sensor element configured to detect a gas content, the sensor element being arranged in the opening. The sensor element has: a sensor body having a longitudinal axis, an electrode chamber within the sensor body, a heating element embedded in the sensor body and by which a predefined region around the electrode chamber is heatable to a predefined operating temperature, an inlet duct coupled to the electrode chamber and having an inlet on the surface of the sensor body, and a thermal insulation sleeve on the sensor body, the thermal insulation sleeve extending at least axially in the direction of the longitudinal axis over a region of the electrode chamber.
Bibliography:Application Number: US201414778463