PROBLEM TO BE SOLVED: To solve a problem with a route measurement device using commercial power that due to shortage of insulation between circuits, by electromagnetic induction and stray electrostatic capacitance, leak current from a commercial power supply line enters a human body and becomes a source of noise during the measurement of current supplied to an electrode applied to a human skin, which makes it impossible to acquire an accurate and stable measurement value.SOLUTION: A noise source has been eliminated by cutting a power input line to a device only for a moment (e.g., 20 ms) during the measurement of current supplied, and supplying an operation power by a capacitor or a battery while the power input line is cut.COPYRIGHT: (C)2014,JPO&INPIT【課題】商用電源を使用する経絡測定装置は、回路間の絶縁性不足や電磁誘導あるいは浮遊静電容量のため、人体皮膚に当てた電極への通電電流測定中、商用電源ラインからの漏洩電流が人体に流入してノイズ源となり、正確で安定した測定値が得られなかった。【解決手段】通電電流測定時の一瞬間(例えば20ms)だけ、装置への電源入力ラインを切断して、その切断中コンデンサーまたは電池により動作電源を供給するようにしてノイズ源をなくした。【選択図】図2
