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A highly sensitive online detection system and method for tiny metal particles

A metal particle and detection method technology, applied in radio wave measurement system, measurement device, electric/magnetic exploration, etc., can solve the problem of low sensitivity, achieve the effect of improving sensitivity and enhancing detection effect

Inactive Publication Date: 2019-09-03
BEIJING INSTITUTE OF TECHNOLOGYGY
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Problems solved by technology

[0006] In view of the above problems, the object of the present invention is to provide a highly sensitive online detection system and method for tiny metal particles, which realizes the on-line detection of high-sensitivity tiny metal particles with large apertures for the problem of low sensitivity of current metal particle detection sensors

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  • A highly sensitive online detection system and method for tiny metal particles
  • A highly sensitive online detection system and method for tiny metal particles
  • A highly sensitive online detection system and method for tiny metal particles

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Embodiment Construction

[0041] In the present invention, the same sinusoidal alternating current is passed into two excitation coils wound in opposite directions, and dynamically changing magnetic fields of equal magnitude and opposite directions are respectively generated inside the two excitation coils. The induction coil is located in the middle of the two excitation coils. When there is no metal When the particles pass through the sensor, the magnetic field strength at the induction coil is zero, so no induced electromotive force is output. When the ferromagnetic particles pass through the sensor, the magnetic field inside the coil will be enhanced. When the non-ferromagnetic particles enter the sensor, the magnetic field inside the coil will be weakened. The effect causes the magnetic field of the two excitation coils to be unbalanced, the magnetic field of the induction coil is not zero, and the induced electromotive force is output. The present invention will be described in detail below in con...

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Abstract

The invention discloses a high sensitivity minisize metal particle online detection system and method. The high sensitivity minisize metal particle online detection system comprises a sensor module, a signal excitation and collection module and a computer; the sensor module performs information interaction with the signal excitation and collection module; the sensor module is used for receiving an excitation signal transmitted by the signal excitation and collection module, performing online detection on the minisize metal particle and transmitting a detected signal to the signal excitation and collection module for processing; and the processed signal is transmitted to the computer. The high sensitivity minisize metal particle online detection system and method target a problem that the current metal particle detection sensor is low in sensitivity, realizes large aperture high sensitivity minisize metal particle online detection and can be widely used for the machinery device lubricant metal wearing particle online detection field.

Description

technical field [0001] The invention relates to a metal particle detection system and method, in particular to a highly sensitive online detection system and method for tiny metal particles of metal wear particles in lubricating oil of online mechanical equipment. Background technique [0002] With the continuous development of equipment fault diagnosis technology, oil monitoring technology has become an important technical means of equipment operation status monitoring, and has gradually developed into a systematic science. Among them, the online oil monitoring technology has become a research hotspot in recent years because it can effectively detect the wear status of equipment in real time and reflect the change process of equipment wear, and has gradually developed into an independent branch of oil detection technology. [0003] At present, research institutions at home and abroad have developed various types of wear particle detection sensors, mainly based on principles...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01V3/11
Inventor 郑长松陈漫贾然杜秋李慧珠高震闫书法
Owner BEIJING INSTITUTE OF TECHNOLOGYGY
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