METHOD AND DETECTOR FOR DETECTING APPROACH OF AC VOLTAGE SOURCE

• Main Authors: SAWADA MASAKATSU, NODA RYUZO, MATSUO KAZUAKI, OURA YOJI, TANAKA MASAHIDE
• Format: Patent
• Language: English; Japanese
• Published: 19.11.2020
• Subjects: MEASURING; MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES; PHYSICS; TESTING

To provide a method and a detector for detecting approach of an AC voltage source, capable of calling attention that a voltage source is close only by attachment to an operator's body regardless of consciousness of the operator.SOLUTION: Disclosed is a power detection method for detecting approach of an AC voltage source, which includes the steps of: measuring a voltage induced in a human body H by approach of the AC voltage source at a first electrode 1 of a detection circuit 4; measuring the voltage to the ground G at a second electrode 2 of the detection circuit; capturing a flowing current due to the potential difference between the first electrode 1 and the second electrode 2 by the detection circuit; and displaying and warning the output derived from the detection circuit 4 when the human body H insulated from the ground G approaches the AC voltage source.SELECTED DRAWING: Figure 3 【課題】作業者の体に装着するだけで作業者の意識に関係なく、電圧源が近くにあることを注意喚起できる交流電圧源の接近検知方法と検知検電器を提供する。【解決手段】交流電圧源の接近を検知する検電方法において、検出回路の第１電極１で交流電圧源の接近によって人体Ｈに誘起された電圧を測定し、同回路の第２電極２で大地Ｇに対する電圧を測定し、これらの第１電極１の電位と第２電極２の電位差により流れる電流を前記検出回路４で捉えて、大地Ｇから絶縁された人体Ｈが前記交流電圧源に接近した際前記検出回路４から導出された出力を表示、警報する。【選択図】図３