Quick detection system and method suitable for aviation oil wear particle information

Abstract

The embodiment of the invention discloses a quick detection system suitable for aviation oil wear particle information. The quick detection system comprises a laser-induced breakdown mechanism, a laser irradiation mechanism, a quartz pipeline, a pump, a hydrodynamic groove, a spectrum collection analysis mechanism and an imaging processing mechanism, wherein the quartz pipeline, the pump and the hydrodynamic groove can form a communicating loop, and a granular test sample can circularly flow in the loop; the laser-induced breakdown mechanism can output high energy laser pulse, and the high energy laser pulse is beam expanded and focused to the quartz pipeline to act on the granular test sample to generate plasma; a spectrum collection device can collect plasma spectrums, and the ingredients and the contents of all the metal elements in the granular test sample can be obtained through a spectrum analyzer; the laser irradiation mechanism can output continuous visible laser, the continuous visible laser is beam expanded to irradiate the granular test sample in the quartz pipeline, speckle images and metal particle shadow images can be formed on a receiving screen, and the speckle images and the metal particle shadow images are processed by a CCD imaging device to obtain the movement velocity information of metal particles and the actual sizes of the particles. The quick detectionsystem disclosed by the embodiment of the invention can quickly achieve change detection on ingredients and contents of the ingredients in large and small wear particles.

Description

technical field [0001] The invention relates to the technical field of aviation equipment detection, in particular to a system and method for rapid detection of wear particle information applicable to aviation lubricating oil. Background technique [0002] There are different forms of failures in aviation equipment, among which wear and tear is the most common. In aviation equipment, due to the interaction of the friction pairs of machine parts, many fine wear particles are produced. These wear particles are suspended in the aviation oil under the action of the lubrication system. The worn particles contain important information about the wear state of the equipment. If The type, quantity, composition and change law of these wear particles can be effectively analyzed, and the wear state of the friction pair of mechanical parts can be determined. [0003] Aviation oil monitoring uses oil analysis as a means to dynamically monitor the use of aircraft through the detection of ...

AI Technical Summary

Problems solved by technology

However, the above spectroscopic analysis technology can only analyze the abrasive particles with a small particle size in the lubricating oil, usually the particle diameter is less than 10 μm, but it is not sensitive to the particles larger than 10 μm, and these large-sized abrasive particles can reflect the abnormal wear state of the equipment important indicators of

For the detection of large particles, X-ray fluorescence spectrometry is currently the most used method, but the analysis cost of this method is relatively high, and elements with atomic numbers below 10 cannot be analyzed, and the detection limit is not ideal

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