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- 教师姓名：王永青
- 性别：男
- 主要任职：Dean of School of Mechanical Engineering
- 电子邮箱：
- 职称：教授
- 所在单位：机械工程学院
- 学位：博士
- 学科：机械电子工程. 机械制造及其自动化
- 毕业院校：大连理工大学
- 曾获荣誉：特聘教授特聘教授
- 办公地点：机械工程学院1#楼346-2房间
- 联系方式：
Influence of Coupling Interference on Arrayed Eddy Current Displacement Measurement
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- 论文类型：期刊论文
- 发表时间：2016-12-01
- 发表刊物：MATERIALS EVALUATION
- 收录刊物：Scopus、SCIE
- 卷号：74
- 期号：12
- 页面范围：1675-1683
- ISSN号：0025-5327
- 关键字：eddy current; displacement; coupling; array; compensation
- 摘要：For arrayed eddy current displacement measurement, the measuring error is caused by the coupling interference between coils. In order to analyze the influence, simulation and experiments were carried out. It was found that both liftoff and sensor spacing have an impact on the coupling interference. Also, the sensor's measuring range is reduced when the spacing is less than the coil outer diameter. In addition, the percentage of reduction of the measuring range will vary with sensor spacing according to the exponential rule. Additionally, a piecewise effect caused by liftoff on the coupling was discovered, which is significant for arrayed eddy current applications. Finally, with the help of the sensor's inverse transfer function established by the sixth order polynomial fitting, compensation was accomplished. As a result, the compensation has a good effect: the average error was 0.009 mm, while the maximum error was 0.043 mm.