| 摘要 |
PURPOSE:To improve the accuracy of temperature detection by providing a temperature detecting mechanism with an output correcting means to correct a detected temperature based on the output of a temperature measuring element to a reasonable value according to dispersion in the accuracy of the temperature measuring element. CONSTITUTION:Standard voltage is applied to a series circuit composed of a thermister T and a resistance R, and the resultant data of A/D conversion of a voltage divided by both the components is compared with basic data to an influence temperature X deg.C stored in a table memory 3, and difference between the two data is stored in a fixed memory 4 as correcting data for the dispersion of temperature measuring elements. The voltage for the correcting data stored in the memory 4 is added to detected data through a data comparing section 2 to make the detected data coincide with a voltage value obtained by computation. After then, the data comparing section 2 determines temperature from in the table memory 3 on the basis of the voltage value after the above correction. |
