Patent ID: 9683900
Date: 2017-06-20
CPC Classifications: G01K,G01R

Claim:
1. A temperature measuring system comprising: a temperature sensor having a temperature measuring resistive element; and a temperature measuring instrument that supplies a constant current to the temperature measuring resistive element through a first signal line connected to one end of the temperature measuring resistive element and second and third signal lines connected to the other end of the temperature measuring resistive element, and outputs a measured temperature based on a voltage difference produced between the first signal line and the second signal line, wherein the temperature measuring instrument comprises: the temperature sensor comprises: the testing switch supplies the first and second constant currents to the first and second signal lines, respectively, when the temperature is being measured, and, when the connection statuses of the first, second, and third signal lines are being tested, temporarily stops the supply of the first constant current and of the second constant current, to change the report from the current detecting/reporting portion.