Method for the in-situ calibration of a thermometer

Number of patents in Portfolio can not be more than 2000

United States of America

PATENT NO 11371894
APP PUB NO 20200064208A1
SERIAL NO

16467297

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Abstract

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The present disclosure relates to a method and apparatus for in-situ calibration and/or validation of a thermometer having a temperature sensor and a reference element composed at least partially of a material that undergoes a phase transformation at a phase transformation temperature, wherein the material remains in the solid phase in the phase transformation, the method including detecting and/or registering a measured value from the temperature sensor; detecting and/or registering a reference variable of the reference element; detecting the occurrence of the phase transformation based on a change of the reference variable; ascertaining a phase transformation time at which the phase transformation occurs; determining a sensor temperature using the temperature sensor at a measurement time that has the shortest time separation from the phase transformation time; and comparing the sensor temperature with the phase transformation temperature and/or determining a difference between the sensor temperature and the phase transformation temperature.

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Patent Owner(s)

  • ENDRESS+HAUSER WETZER GMBH+CO. KG

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Schalles, Marc Erfurt, DE 16 35

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