Ear thermometer

1. An ear thermometer, comprising:

a probe attached to an ear hole of a temperature measurement target person and comprising:

an infrared sensor unit measuring a temperature of an eardrum of an ear of the temperature measurement target person in a non-contact manner, the probe

a probe body inserted into the ear hole of the temperature measurement target person;

a housing for supporting the probe body; and

an in-ear type earpiece attached to the probe body and abutted on an inside of the ear hole of the temperature measurement target person,

the infrared sensor unit comprising a first sensor and a second sensor arranged in the probe body and spaced apart by a predetermined distance along a direction substantially orthogonal to the eardrum when the probe body is inserted into the ear hole of the temperature measurement target person;

a first linearizer for linearizing first temperature data acquired by the first sensor;

a second linearizer for linearizing the second temperature data acquired by the second sensor;

a radiation temperature convertor for calculating a radiation temperature by inputting a value obtained by the first linearizer into a predetermined conversion formula; and

a body temperature convertor for calculating the body temperature by adding the radiation temperature to the value obtained by the second linearizer.

2. The ear thermometer of claim 1 , wherein

the first sensor is disposed in a recess formed in a tip side of the probe body and is disposed at a focal point of a concave surface formed on a bottom side of the recess; and

the second sensor is disposed below the concave surface.

3. The ear thermometer of claim 1 , wherein

the first sensor and the second sensor are disposed on a sensor substrate, and

the sensor substrate is housed in the probe body and the housing.

4. The ear thermometer of claim 1 , wherein

each of the first sensor and the second sensor is constituted of a thermistor temperature element.