大连海事大学学报 >
2016 , Vol. 42 >Issue 2: 96 - 101
DOI: https://doi.org/10.16411/j.cnki.issn1006-7736.2016.02.016
时谐磁场中的金属微粒磁化及电阻脉冲检测方法
收稿日期: 2016-01-25
修回日期: 2016-03-28
网络出版日期: 2016-03-01
基金资助
国家自然科学基金资助项目（51205034）；交通运输部项目（2013329225260）；辽宁省教育厅项目（L2012179）.
Metal particle magnetization and resistance pulse detection method in harmonic field
Received date: 2016-01-25
Revised date: 2016-03-28
Online published: 2016-03-01
刘 东 , 张洪朋 , 张兴明 . 时谐磁场中的金属微粒磁化及电阻脉冲检测方法[J]. 大连海事大学学报, 2016 , 42(2) : 96 -101 . DOI: 10.16411/j.cnki.issn1006-7736.2016.02.016
In order to improve the sensitivity of the inductive metal particle detection chip, a resistance pulse based particle detection method was proposed. The theoretical analysis was given on the metal particle magnetization in harmonic field. Simultaneously, the experimental research on the resistance forward pulse was carried out with different particle size in different frequency at a constant flow of particles. Experimental results demonstrate that the signal to noise ratio on detecting non-ferromagnetic particles is improved by using resistance pulse, thereby the sensitivity on detecting non-ferromagnetic particles is further improved.
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