To conduct detection sensitivity adjustment for a touch-operated button device in a short time without acquiring the knowledge of the usage of a measuring instrument in a detection sensitivity adjusting device for detection device, by fitting a guiding device for indicating and instructing work progress and the next process to an operator.
When a human body comes into contact with a touch plate 1, an output signal 3 amplified by an amplifying circuit 2 increases more than the prescribed voltage of a comparison circuit 5 and a detected signal is outputted. For adjustment of the amplifying degree of the amplifying circuit 2 with an adjusting circuit 4, an adjusting device 10 takes the output signal 3 in a microcomputer 8 and compares with a set value of the amplifying degree of the amplifying circuit 2 previously inputted with input device 7. In the case of output signal 3 < set value (a) or output signal 3 > set value (b), a guiding device instructs that a detecting sensitivity adjustment is required, and in the case of output signal 3 > set value (a) and output signal 3 < set value (b), it informs an operator that an adjustment has been completed.
KOMATSU TSUTOMU
HIROSE MASAYUKI
HITACHI MITO ENG KK
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