| 摘要 |
PROBLEM TO BE SOLVED: To provide a cheap thermocouple detector circuit capable of calculating an exact thermocouple value. SOLUTION: In the thermocouple detection circuit equipped with a thermocouple input terminals, an operation amplifier for amplifying an input signal from the thermocouple input terminals, and an A/D converter circuit for A/D converting the output of the operation amplifier, a correction dummy circuit for correcting the temperature drift and offset voltage of the inner element of the thermocouple detector circuit is equipped inside of the operation amplifier. COPYRIGHT: (C)2005,JPO&NCIPI
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