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US 7,404,880 B2Granted
Sensor element
AssigneeRobert Bosch GmbH
InventorsJohannes Kanters, Lothar Diehl, Stefan Rodewald
Life of this patent
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Abstract
A layered sensor element used in a gas measuring sensor for measuring a physical property of a measuring gas, preferably for determining the temperature of the measuring gas or the concentration of a component of the measuring gas. The sensor element contains a wave-form heater, which is embedded in a porous heater insulation. At least one separating element having a lower porosity than the porous heater insulation is provided between two adjacent sections of the wave-form heater.
Claims16
A layered sensor element comprising:
- a porous heater insulation;
- a heater embedded in the porous heater insulation, the heater having two adjacent sections;
- and
- at least one separating element having a lower porosity than the porous heater insulation, the at least one separating element being situated between the two adjacent sections of the heater.
1 more element
Dependencies are inferred from the claim text.