TEMPERATURE MEASURING METHOD USING PIEZORESISTIVE PRESSURE SENSOR AND TEMPERATURE MEASURING DEVICE

摘要

PURPOSE: A temperature measuring method using a pressure resistance sensor and a temperature measuring device are provided to compensate an error of an output voltage generated by pressure applied to the temperature measuring device in which a wheat-stone bridge is mounted when measuring temperature with the device, thereby accurately measuring a current temperature. CONSTITUTION: A temperature measuring method using a pressure resistance sensor includes the following steps of: measuring a voltage of an output terminal of a wheat-stone bridge (10); calculating a correction voltage in which a correction error due to pressure is subtracted from the measured voltage of the output terminal (20); and calculating a current temperature value based on a linear relation of the output voltages of two points included in a temperature section by using the calculated correction voltage as an input value. [Reference numerals] (10) Voltage measuring unit; (20) Corrected voltage calculation unit; (30) Current temperature calculation unit