TEMPERATURE MEASURING APPARATUS USING THERMOCOUPLE SENSOR

摘要

A temperature measuring device using a thermocouple sensor is provided to increase the precision to measure the temperature by precisely compensating the reference junction even if the self-heating and ambient temperature varies. A temperature measuring device using a thermocouple sensor comprises: connection terminals(31-1~31-n) connecting thermopile sensors; a measurement point measuring signal converting unit(32) converting the voltage generated in the thermocouple sensor into a digital value; a standard contact temperature sensor sticking to each connection terminal; a standard contact measuring signal converting unit(34) converting a measured signal into the digital value; a peripheral temperature sensor(35) measuring the ambient temperature of the temperature measuring device; a peripheral measuring signal converting unit(36) converting the signal which the peripheral temperature sensor measures into the digital value; and a processing unit(37) producing the temperature of the metering point in which each thermopile sensor is positioned.