Detection device and detection method for ferromagnetic abrasive grains in liquid oil

A detection device and liquid oil technology, applied in the field of sensors, can solve the problems of cumbersome process and long analysis period, and achieve the effect of reducing the occurrence of equipment failures

Inactive Publication Date: 2016-02-03
BEIJING ZHIGAN SENSOR TECH RES INST CO LTD
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  • Abstract
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Problems solved by technology

Although the offline detection method can obtain high detection acc

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  • Detection device and detection method for ferromagnetic abrasive grains in liquid oil
  • Detection device and detection method for ferromagnetic abrasive grains in liquid oil
  • Detection device and detection method for ferromagnetic abrasive grains in liquid oil

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Embodiment Construction

[0021] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary and are intended to explain the present invention and should not be construed as limiting the present invention.

[0022] A device for detecting ferromagnetic abrasive particles in liquid oil according to an embodiment of the present invention will be described in detail below with reference to the accompanying drawings.

[0023] Such as figure 1 and figure 2 As shown, the detection device for ferromagnetic abrasive particles in liquid oil according to the embodiment of the present invention includes a detection unit 100 for detecting the content of ferromagnetic abrasive particles 300 in the oil to be detected, for receiving and processing...

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Abstract

The invention puts forward a detection device and detection method for ferromagnetic abrasive grains in liquid oil. The device comprises a detection unit and a processor unit. The detection unit includes: a quartz crystal sensor that is disposed in the shell to divide the shell into a detection cavity and an oil holding cavity; a magnet disposed in the detection cavity; a main control board that is disposed in the detection cavity and is connected to the processor unit. The main control board is used for detecting the vibration signal of the quartz crystal sensor's quartz wafer, and the processor unit acquires the content of ferromagnetic abrasive grains in the to-be-detected oil according to the corresponding relationship of the vibration signal and the content of ferromagnetic abrasive grains in the to-be-detected oil. According to the detection device involved in the embodiment of the invention, the magnet attracts ferromagnetic abrasive grains in the to-be-detected oil to the upper surface of the quartz crystal sensor's first electrode, and performs mutual attraction with the ferromagnetic abrasive grains through magnetic force to change quartz wafer, and by means of the correlation curve of the quartz wafer's vibration variation quantity and the ferromagnetic grain content, the content of ferromagnetic abrasive grains in the to-be-detected oil can be obtained finally.

Description

technical field [0001] The invention relates to the field of sensors, in particular to a detection device and a detection method for ferromagnetic abrasive grains in liquid oil. Background technique [0002] The vast majority of mechanical parts are made of ferrous materials. In actual mechanical operation, due to the occurrence of friction and wear, the material on the moving surface usually falls off in the form of wear particles and melts into the lubricating oil. The mechanical wear process is generally divided into three stages, namely, running-in wear, stable wear and severe wear. The normal operation of machinery usually occurs stable wear, and its wear amount is small. When the wear rate of the material increases suddenly, especially when the large-size ferromagnetic abrasive particles appear in the lubricating oil, it often indicates the occurrence of severe wear. If it is not repaired in time, it will cause failure. Detecting the content of ferromagnetic abrasi...

Claims

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Application Information

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IPC IPC(8): G01N15/06
Inventor 詹姆斯·刘李晖英
Owner BEIJING ZHIGAN SENSOR TECH RES INST CO LTD
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