PROBLEM TO BE SOLVED: To provide an infrared ray clinical thermometer for measuring the correct temperature of a human body, which is not influenced by a distance, through the use of an infrared ray sensor.SOLUTION: Capacitance when a proximity sensor constituted by a ground electrode 5 and an electrode S7 approaches a human body is measured. Prestored prescribed capacitance when the proximity sensor is brought into contact with the human body is compared with the capacitance measured by the proximity sensor. When the measured capacitance becomes the prescribed capacitance, it is determined that a sensor body is brought into contact with the human body. The infrared dose from the infrared ray sensor 3 in this case of determination is measured. The body temperature based on the measured infrared dose is calculated and displayed in a liquid crystal display unit.測定由接地電極(5)與電極(7)所構成的近接感測器近接人體時的靜電電容,將預先記憶的近接感測器的人體接觸時的預定的靜電電容與以近接感測器所測定到的靜電電容作比較,當該所測定到的靜電電容成為預定的靜電電容時,即判定感測器本體已接觸到人體,測定此時來自紅外線感測器(3)的紅外線量,根據該所測定到的紅外線量來算出體溫,而將該所被算出的體溫顯示於液晶顯示器。1‧‧‧紅外線體溫計3‧‧‧紅外線感測器5‧‧‧接地電極7a‧‧‧電極外包裝
