Switch-Driving Eddy-Current Displacement Sensing Based on Power Loss

摘要：

The principle of a switch-driving eddy-current displacement sensor is analyzed based on the eddy current power loss. This sensor converts the power loss into a working current by using switching circuits, in which a DC current related to the gap is picked out with a low pass filter. The displacement of the target thus could be obtained. A series of static experiments are carried out with iron, aluminum and nonmagnetic stainless steel as the targets, finally giving promising results.

关键词： Eddy-Current S ensor Switching Circuits Power Loss Resonance Frequency

作者: Zhong Jianpeng Li Lichuan

作者单位: School of Electrical Engineering, Xi’an Jiaotong University, Xi’an, 710049, China

会议类型: 国际会议

会议名称: The Twelfth International Symposium on Magnetic Bearings(第十二届国际磁悬浮轴承学术会议)

会议地点: 武汉

会议语种:英文

页码: 358-363

在线出版日期: 2010-08-22（万方平台首次上网日期，不代表论文的发表时间）