Patent ID: 6994467

Claim:
A method for determining the absolute temperature of a substance, comprising the steps of repeatedly: sensing the absolute temperature of the substance and generating an absolute value associated therewith; sensing a temperature difference between a temperature of a reference body and a temperature of the substance and generating a difference value associated therewith; and determining an optimised value of the absolute temperature of the substance by means of said absolute value and said difference value, wherein said determining the optimised value further comprising: establishing a mathematical expression for a determined absolute temperature T det at a time t, where T det is determined by means of said difference value; providing a sensed absolute temperature T PT at the time t by means of said absolute value; establishing an equation by setting the determined absolute temperature T det expressed by said mathematical expression equal to the sensed absolute temperature T PT ; providing said equation with relevant values of said sensed absolute temperature and said difference value; iteratively determining unknown factors of the equation; and solving the equation for quantities, including the determined absolute temperature T det , represented in said factors.