Metal particle detection sensor based on high-gradient permanent magnet and high-frequency magnetic field and detection method thereof

The invention belongs to the field of mechanical equipment condition monitoring, and particularly relates to a metal particle detection sensor based on a high-gradient permanent magnet and a high-frequency magnetic field and a detection method thereof. The sensor comprises a sensor shell assembly, a...

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Bibliographische Detailangaben
Hauptverfasser: ZHAO LIBO, JING YUXUAN, YUAN ZHENG, FENG SONG
Format: Patent
Sprache:chi ; eng
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Beschreibung
Zusammenfassung:The invention belongs to the field of mechanical equipment condition monitoring, and particularly relates to a metal particle detection sensor based on a high-gradient permanent magnet and a high-frequency magnetic field and a detection method thereof. The sensor comprises a sensor shell assembly, a magnetic field loop assembly and an oil pipe detection assembly, the sensor shell assembly comprises a shell, a first pipe joint and a second pipe joint, through holes are formed in the side face of the shell, and the first pipe joint and the second pipe joint are arranged at through hole openings in the two sides of the shell respectively; the oil pipe detection assembly is located in the center of the shell and comprises an induction coil and an oil pipe, the oil pipe is located in an inner cavity of the sensor, and the two ends of the oil pipe are connected with the first pipe connector and the second pipe connector in an embedded mode. A coil framework is nested on the outer side of the oil pipe wall; an induc