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US 2022/0120666 A1Published application
Method and Device for Compensating Temperature Gradient Effects
AssigneeTDK Corporation
InventorMatthias König
Life of this patent
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Abstract
In an embodiment a method for compensating a temperature gradient effect for gas concentration sensors includes variating a temperature gradient, measuring a variation of gas concentration depending on the variation of the temperature gradient, analysing a dependence of the gas concentration and the temperature gradient for setting up an error correction function and applying the error correction function to correct measured values of the gas concentration.
Claims5
A method for compensating a temperature gradient effect for gas concentration sensors, the method comprising:
- variating a temperature gradient;
- measuring a variation of gas concentration depending on the variation of the temperature gradient;
- analysing a dependence of the gas concentration and the temperature gradient for setting up an error correction function;
- and
- applying the error correction function to correct measured values of the gas concentration.
2 more elements
A device comprising:
- a sensor configured to measure gas concentrations;
- and
- an analysing unit configured to:
- analyse a dependence of a gas concentration on a temperature gradient during calibration of the sensor in order to set up an error correction function;
- and
- apply the error correction function to measured values of the gas concentration after the calibration is completed,
- wherein the device is configured to measure the gas concentrations independent of the temperature gradient.
4 more elements
Dependencies are inferred from the claim text.