Patent ID: 8692199

Claim:
An evaluation device for determining a measurement value of a component connected to the evaluation device, the component comprising a temperature-dependent resistance, comprising: a reader comprising a delta-sigma modulator configured to determine, using a delta-sigma modulation principle involving a number of clock cycles, while supplying, per clock cycle, a clock cycle power to the component, a measurement value measuring a resistance of a bolometer and to output the measurement value so that the measurement value is a measure of temperature; and a controller configured to determine a count of the number of clock cycles or a sum of a measure of the clock cycle power for each clock cycle so as to obtain an overall power supplied by the reader; and a compensator configured to correct the measurement value determined by the reader using the overall power in order to achieve a corrected measurement value which is freed from any effects caused by the overall power supplied, or control the reader so as to continue, in an energy cycle succeeding the clock cycles, to supply extra power to the component until the overall power plus the extra power equals a predetermined standard value.