Temperature measurement device and temperature measurement method

A temperature measurement device comprising:

• a first surface temperature measurement part subjected to measure, as a first surface temperature, a surface temperature of a subject to be measured;
• a first reference temperature measurement part subjected to measure, as a first reference temperature, the temperature at a position having a predetermined heat resistance value relative to the measurement position of the first surface temperature and having a first heat resistance value relative to external air;
• a second surface temperature measurement part subjected to measure a second surface temperature at a surface position that is different from the first surface temperature measurement position;
• a second reference temperature measurement part subjected to measure, as a second reference temperature, the temperature at a position having a predetermined heat resistance value relative to the measurement position of the second surface temperature and having a second heat resistance value different from the first heat resistance value relative to external air;
• a deep-part temperature computation part subjected to compute a deep-part temperature of the subject to be measured using the first surface temperature, the first reference temperature, the second surface temperature, and the second reference temperature values;
• a heat insulating part having the shared predetermined heat resistance value being provided between the first surface temperature measurement position and the first reference temperature measurement position and between the second surface temperature measurement position and the second reference temperature measurement position;
• a first heat releasing control part having the first heat resistance value being provided between the first reference temperature measurement position and external air;
• and
• a second heat releasing control part having the second heat resistance value being provided between the second reference temperature measurement position and the external air;
• the temperature measurement device being configured so that the surface of the first heat releasing control part where contact is made with the external air and the surface of the second heat releasing control part where contact is made with the external air have equivalent predetermined heat transfer coefficients.