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Design of a micro-triple-coil multi-pollutant detection sensor based on high-gradient magnetic field.

Authors :
Xie, Yucai
Zhang, Yuwei
Zhang, Hongpeng
Shi, Haotian
Wu, Di
Zhang, Shuyao
Sun, Yuqing
Source :
Sensors & Actuators A: Physical. Nov2023, Vol. 362, pN.PAG-N.PAG. 1p.
Publication Year :
2023

Abstract

Oil detection in mechanical equipment is a critical aspect of assessing the wear status of equipment. In this paper, we design a novel multi-pollutant detection sensor embedded in a high permeability material, which employs a radial channel detection method to improve the detection accuracy of metallic pollutants and non-metallic pollutants while maintaining the accuracy of detecting metallic wear particles. The experimental results demonstrate that the micro-triple-coil multi-pollutant detection sensor, based on a high-gradient magnetic field, can detect ferromagnetic particles, non-ferromagnetic particles, and moisture with high accuracy. The theoretical lower detection limit for ferrous particles is 38 µm, and for copper particles, it is 51 µm. Furthermore, the sensor successfully detects emulsified oil with 1% water content in the moisture detection experiment. Our proposed detection sensor provides a new reference direction for future oil detection sensor design and exhibits high accuracy. [Display omitted] • The magnetic field of the excitation coil is enhanced by a silicon steel sheet. • Sensor stability is further improved by utilizing a radial magnetic field. • Utilizes strong electric field areas to improve moisture detection accuracy. [ABSTRACT FROM AUTHOR]

Details

Language :
English
ISSN :
09244247
Volume :
362
Database :
Academic Search Index
Journal :
Sensors & Actuators A: Physical
Publication Type :
Academic Journal
Accession number :
172845829
Full Text :
https://doi.org/10.1016/j.sna.2023.114661