| 摘要 |
PROBLEM TO BE SOLVED: To accurately detect a temperature by reducing a temperature difference between a contactless temperature sensor and a temperature sensor for correction. SOLUTION: This temperature detector 7 for detecting contactlessly a surface temperature of a heated body 1 heated by a heating source 2 is provided with the contactless temperature sensor 3 arranged opposedly to the heated body 1 to measure an infrared ray radiated from the heated body 1, and a plurality of temperature sensors 4 for the correction for correcting temperature information of the contactless type temperature sensor 3. As the contactless temperature sensor, a thermopile type temperature sensor is used for example, and as the temperature sensor 4 for the correction, a sensor of a type of which the electric resistance value is varied in accompaniment with temperature change is used for example.
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