Affiliation:
1. Shien-Ming Wu School of Intelligent Engineering, South China University of Technology, 510640, Guangzhou, China
2. Guangzhou Mechanical Engineering Research Institute Co., Ltd., 510535, Guangzhou, China
Abstract
The on-line monitoring of wear metal particles in lubricating oil plays an important role in equipment fault diagnosis technology. According to the principle of electromagnetic induction and the Biot-Savart law, model structure design, coil production, etc., different from traditional
multi-coil excitation detection methods and compared to traditional methods that are only sensitive to large particles, this paper designed a self-excitation and self-induction metal particle monitoring sensor in lubricating oil based on LC resonance. At the same time, a sensor experimental
bench is built by combining the production of ferromagnetic and non-ferromagnetic metal particle standards. In addition, through experimental verification, the sensor can achieve monitoring sensitivity for ferromagnetic particles greater than 41.28 μm and non-ferromagnetic (copper)
particles greater than 61.53 μm under the 4.2 mm aperture flow channel, realizing the sensitivity on monitoring of small wear ferromagnetic particles and wear metal non-ferromagnetic particles, the experiment showed that it is particularly sensitive to small non-ferromagnetic particles.
Based on a wide pipeline radius, the accuracy and sensitivity of the designed single-coil sensing system have been demonstrated.
Publisher
American Scientific Publishers
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