| 摘要 |
PROBLEM TO BE SOLVED: To provide a measurement circuit for resistance thermometer bulb capable of measuring the resistance value of a resistance thermometer bulb with a simple circuit configuration. SOLUTION: In the measurement circuit for measuring the resistance value of a resistance thermometer bulb 31, a measurement means 50 which supplies a constant current to first and second wiring resistors 30 and 32 connected to both ends of resistance thermometer bulbs 31 and 31 for measuring a voltage drop, and a reference voltage regulating means 51 which shifts a reference voltage of a reference for measuring a voltage drop by a voltage drop amount at the first and second wiring resistance 30 and 32, are provided.
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