Thermometer and temperature measurement method

A temperature measurement method for measuring a core temperature of a measurement subject, comprising:

• measuring a surface temperature of a measurement subject by a first surface temperature measurement unit as a first surface temperature;
• measuring a temperature at an opposite side of the first surface temperature measurement unit as a first reference temperature through a first heat insulating portion having a first thermal resistance value;
• measuring a surface temperature of the measurement subject by a second surface temperature measurement unit at a position different from the first surface temperature measurement unit as a second surface temperature;
• measuring a temperature at an opposite side of the second surface temperature measurement unit as a second reference temperature through a second heat insulating portion having a second thermal resistance value;
• correcting the first surface temperature and the first reference temperature based on the second surface temperature and the second reference temperature in a case in which the first thermal resistance value and the second thermal resistance value are different from each other;
• and
• calculating a core temperature of the measurement subject using the first surface temperature and the first reference temperature which have been corrected.

A thermometer comprising:

• a first surface temperature measurement unit configured to measure a surface temperature of a measurement subject as a first surface temperature;
• a first reference temperature measurement unit configured to measure a temperature at an opposite side of the first surface temperature measurement unit as a first reference temperature through a first heat insulating portion having a first thermal resistance value;
• a second surface temperature measurement unit configured to measure a surface temperature of the measurement subject at a position different from the first surface temperature measurement unit as a second surface temperature;
• a second reference temperature measurement unit configured to measure a temperature at an opposite side of the second surface temperature measurement unit as a second reference temperature through a second heat insulating portion having a second thermal resistance value;
• a temperature correction unit configured to correct the first surface temperature and the first reference temperature based on the second surface temperature and the second reference temperature in a case in which the first thermal resistance value and the second thermal resistance value are different from each other;
• and
• a temperature calculation unit configured to calculate a core temperature of the measurement subject using the first surface temperature and the first reference temperature which have been corrected.