PROBLEM TO BE SOLVED: To more accurately grasp a variation in a core temperature.SOLUTION: Time-series data of the core temperature of a living body are acquired by using a heat flux sensor (20) including two temperature sensors (20u, 20s). Blood flow in the vicinity of the heat flux sensor (20) is measured by a blood flow sensor (30). A calculation circuit (40) calculates a delay time until a variation of the core temperature of a living body is reflected to a skin temperature based on a blood flow measured by the blood flow sensor (30) and a predetermined relation between the blood flow and the delay time until the variation of the core temperature of the living body is reflected to the skin temperature. The time associated with the core temperature of the living body is corrected on the basis of the delay time.SELECTED DRAWING: Figure 1COPYRIGHT: (C)2020,JPO&INPIT【課題】核心部温度の変動をより正確に把握する。【解決手段】二つの温度センサ（２０ｕ、２０ｓ）を含む熱流束センサ（２０）を用いて生体の核心部温度の時系列データを取得する一方、血流センサ（３０）で前記熱流束センサ（２０）近傍の血流量を測定し、演算回路（４０）によって、血流センサ（３０）で測定された血流量と、予め用意した血流量と生体の核心部温度の変動が表皮温度に反映されるまでの遅延時間との関係とに基づいて、生体の核心部温度の変動が表皮温度に反映されるまでの遅延時間を算出し、前記遅延時間に基づいて前記生体の核心部温度に対応づけられた時刻を補正する。【選択図】 図１
