Patent ID: 6929611

Claim:
A device for measuring a body temperature of a subject, the device comprising: a head positioning element with a section positioned adjacent to the scalp of a subject or adjacent to the fontanelle of the subject; and a double temperature sensor with a first temperature sensor and a second temperature sensor arranged as an assembly unit opposite each other, wherein said double temperature sensor is positioned by said head positioning element such that said first temperature sensor measures a temperature th 1 near the skin on the forehead of the said subject substantially in the middle between the eyes or on the head in the area of the fontanelle and said second temperature sensor measures a temperature th 2 close in space to the head or the forehead; and a body temperature evaluating unit determining the body temperature of the subject from the calculation formula tc=th 1 +( th 1 −th 2 ) * Ks/Kg in which Ks=coefficient of thermal conduction for the sensor and Kg=coefficient of thermal conduction for the tissue.