Cable joint lead sealing part pulsed eddy current detection device and application method thereof

• Main Authors: XIE AMENG, SHEN DINGJIE, FENG CHAO, LIU YUNLONG, XIE YI, QU GUOMIN, LONG HUIGUO
• Format: Patent
• Language: Chinese; English
• Published: 13.07.2021
• Subjects: INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES; MEASURING; PHYSICS; TESTING

The invention discloses a cable joint lead sealing part pulsed eddy current detection device and an application method thereof. The cable joint lead sealing part pulsed eddy current detection device comprises a signal generator, an eddy current detection probe, a data acquisition and processing module and a control module, the control end of the signal generator is connected with the control module, and an excitation coil and a detection coil are arranged in the eddy current detection probe, the output end of the signal generator is connected with the excitation coil; the output end of the detection coil is connected with the control module through the data acquisition and processing module; the application method of the device comprises the steps that all-directional pulsed eddy current detection on the lead sealing part of the cable joint is achieved in the circumferential movement direction and the longitudinal movement direction, and the amplitude variation of induced voltage serves as the judgment refere