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US 2005/0028580 A1Published application
Sensor module having a sensor element surrounded by a heating element
AssigneeRobert Bosch GmbH
InventorsMichael Bauer, Isolde Simon, Michael Arndt
Life of this patent
Estimating the term…
Abstract
A sensor module having a heating structure and a sensor element is described. The heating structure surrounds the sensor element so that heat dissipation through a frame is largely prevented. This yields a greater measuring accuracy of the sensor module. In particular, interfering influences due to a temperature dissipation through the mount frame are thereby prevented.
Claims15
1-12. (Canceled)
A sensor module, comprising:
- a heating element;
- a sensor element;
- and
- a carrier to which is applied the heating element and the sensor element, wherein:
- the heating element is for adjusting a temperature of the carrier,
- the sensor element is for determining the temperature of the carrier, and
- the heating element at least partially surrounds the sensor element.
4 more elements
The sensor module as recited in claim 20, wherein:
- the heating element includes an at least partial ring structure.
A method for measuring a conductivity of a gas using a sensor module including a heating element, a sensor element;
- and a carrier to which is applied the heating element and the sensor element, the heating element being capable of adjusting a temperature of the carrier, the sensor element capable of determining the temperature of the carrier, the heating element at least partially surrounding the sensor element, the heating element including a rectangular structure, and each side of the rectangular structure being formed by a heating structure, the method comprising:
- setting, via two of the heating structures, one of a predetermined temperature and a heating power to be generated by at least one of the two heating structures;
- detecting, via the sensor element, at least one of a temperature and a heating power of the sensor element required to set a temperature prevailing on the two heating structures;
- deriving information regarding the conductivity of the gas from the at least one of the temperature and the heating power of the sensor element;
- and
- regulating a heating power of the two heating structures independently of one another.
3 more elements
Dependencies are inferred from the claim text.