PROBLEM TO BE SOLVED: To provide a contact internal thermometer capable of reducing a measurement error caused by the attitude thereof.SOLUTION: A contact internal thermometer 100 comprises: a first temperature sensor 32 thermally connected to a first probe 30 which comes into contact with a measured surface of a measuring object； a second temperature sensor 33 thermally connected to a second probe 31 which comes into contact with the measured surface of the measuring object； a first environmental temperature sensor 34； a second environmental temperature sensor 35； a flow passage partition 21 for partitioning a first heat flow passage heading from the first temperature sensor 32 to the first environmental temperature sensor 34 and a second heat flow passage heading from the second temperature sensor 33 to the second environmental temperature sensor 35； and a controller 50 which calculates the internal temperature of the measuring object on the basis of the temperatures detected by the first temperature sensor 32, the second temperature sensor 33, the first environmental temperature sensor 34, and the second environmental temperature sensor 35. The direction of the first heat flow passage differs from the direction of the second heat flow passage.【課題】接触式内部温度計において、接触式内部温度計の姿勢による測定誤差を低減する。【解決手段】測定対象物の被測定面に接触する第１のプローブ３０と熱的に結合される第１の温度センサ３２と、前記測定対象物の被測定面に接触する第２のプローブ３１と熱的に結合される第２の温度センサ３３と、第１の環境温度センサ３４と、第２の環境温度センサ３５と、第１の温度センサ３２から第１の環境温度センサ３４へと向かう第１の熱流路と第２の温度センサ３３から第２の環境温度センサ３５へと向かう第２の熱流路を分け隔てる流路隔壁２１と、第１の温度センサ３２、第２の温度センサ３３、第１の環境温度センサ３４及び第２の環境温度センサ３５により検出される温度に基いて測定対象物の内部温度を算出するコントローラ５０と、を有し、前記第１の熱流路と前記第２の熱流路の向きが異なる接触式内部温度計１００。【選択図】図３
