Patent ID: 11913925
Assignee: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE
Field: Measurement (Instruments)
Classification: CPC G | IPC G

Claim 0:
1. A sensing device comprising:
a processing circuit; and
a multi-sensor integrated single chip electrically connected to the processing circuit and comprising:
a substrate;
a temperature sensor disposed on the substrate and configured to sense temperature;
a pressure sensor disposed on the substrate and configured to sense pressure; and
a first environmental sensor disposed on the substrate and configured to sense a first environmental state;

wherein the processing circuit is configured to:
establish a look-up table which comprises a relationship between temperature to an output offset calibration parameter and an output gain calibration parameter of the pressure sensor;
store the look-up table in a memory;
obtain a first sensed temperature value from the temperature sensor when the first environmental sensor does not operate;
obtain a second sensed temperature value from the temperature sensor when the first environmental sensor operates;
obtain a sensed pressure value from the pressure sensor; and
access the memory to obtain the output offset calibration parameter and the output gain calibration parameter of the pressure sensor from the look-up table according to the first sensed temperature value and the second sensed temperature value and calibrate the sensed pressure value according to the output offset calibration parameter and the output gain calibration parameter to generate a calibrated pressure value.