ELECTRICAL CONNECTION DEGRADATION DIAGNOSING DEVICE AND DEGRADATION DIAGNOSING METHOD

• Main Authors: TOYOIZUMI JUN, ITO YOSHITAKA, KANEKO NOBUHISA, KONDO TAKAYA, FUKUYAMA YASUHIRO
• Format: Patent
• Language: English; Japanese
• Published: 09.01.2020
• Subjects: MEASURING; MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES; PHYSICS; TESTING

To provide an electrical connection degradation diagnosing device and degradation diagnosing method with which it is possible to accurately diagnose the degree of degradation of an electrical connection between two metal members.SOLUTION: An electrical connection degradation diagnosing device 1 comprises: measurement means 10 which, while an AC signal of prescribed frequency is applied to an electric circuit that connects between two metal members 40, 50 that come in contact via an electrical connection, measures an AC voltage between the metal members 40, 50 and an AC current flowing between the metal members 40, 50 and thereby measures impedance relating to the contact resistance of the electrical connection; and diagnostic means 20 for diagnosing the degree of degradation of the electrical connection on the basis of the value of a reactance component in the impedance measured by the measurement means 10.SELECTED DRAWING: Figure 1 【課題】２つの金属部材間の電気的接続部の劣化度合を正確に診断可能な電気的接続部の劣化度合診断装置及び劣化度合診断方法を提供すること。【解決手段】劣化度合診断装置１は、電気的接続部を介して接触する２つの金属部材４０，５０間を繋ぐ電気回路に所定の周波数の交流信号を印加した状態で、金属部材４０，５０間の交流電圧及び金属部材４０，５０間を流れる交流電流を測定することで、電気的接続部の接触抵抗に関するインピーダンスを測定する測定手段１０と、測定手段１０により測定されたインピーダンスにおけるリアクタンス成分の値に基づいて、電気的接続部の劣化度合を診断する診断手段２０と、を備える。【選択図】図１