| 摘要 |
PROBLEM TO BE SOLVED: To provide a magnetometric device capable of easily inspecting a counter possessed by a built-in A/D converter. SOLUTION: The magnetometric device comprises a magnetometric sensor, a clock generating circuit, the counter 6a for counting timing signals, a comparative voltage generating means for raising the comparative voltage synchronously with the timing signals, a comparator for inverting the output when the output voltage of the comparative voltage generating means becomes a voltage corresponding to the output of the magnetometric sensor or more, and an A/D control section 6f for making the count value of the counter 6a to be read into the register 6b when the output of the comparator is inverted. The controller 6 comprises a switch 6h that, when a first external signal is inputted from an external device, supplies the clock signal inputted from the external device of the counter 6a instead of the clock signal generated by the clock generating circuit, and a switch 6i for supplying a second external signal inputted from the external device to the A/D control section 6f instead of the output of the comparator. COPYRIGHT: (C)2006,JPO&NCIPI
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