Patent ID: 7922388

Claim:
A detection device for detecting a temperature of an object, the detection device comprising: a double temperature sensor, which comprises a first temperature sensor and a second temperature sensor and a heat transmission member with a predetermined heat transmission resistance, said heat transmission member being arranged between said first temperature sensor and said second temperature sensor, and said detection device determining the temperature of the object as a function of a first temperature signal generated by said first temperature sensor and as a function of a second temperature signal generated by said second temperature sensor; a detection current means for sending a detection current for detecting the temperature to said double temperature sensor and to receive at least one temperature signal, which represents a temperature of said double temperature sensor and to generate a temperature signal, which represents the temperature of the object, as a function of the temperature signal of said temperature sensor and to provide this temperature signal as an output; a heating current means for generating a heating current and for sending said heating current to said temperature sensor during a heating time period, so that a total current, comprising said detection current for detecting the temperature and said heating current, is greater than said detection current to heat said temperature sensor; and a detection control means for controlling said detection current means and said heating current means, said detection device selectively and separately sending said heating current to said first and said second temperature sensor to selectively and separately heat said first and said second temperature sensor.