Abstract： At present, eddy current sensors are mainly used for monitoring the shaft vibration of the large rotation machinery. So their performance is directly related to the secure and stable operation of the whole unit. Related experimental studies were done, including the problems of material sensitivity and temperature drift. Firstly, a transformation method to eliminate the sensitivity was proposed through processing experimental data, and the theoretical demonstration was also made. Secondly, a method of effectively reducing the temperature drift was presented followed by the theoretical analysis of the main factors affecting the drift. Finally, the two methods were comprehensively applied to design the probe. The experiment shows that the error of the material sensitivity of eddy current sensor is less than 3.5% with that of the temperature drift less than 2.5% by adopting the two proposed methods.
田新启;陈虎勋;高 亹. 振动涡流传感器关键技术研究[J]. , 2010, 29(1): 157-161.
TIAN Xin-qi;CHEN Hu-xun;GAO Wei. Study on the key technologies of the vibration eddy current sensor. , 2010, 29(1): 157-161.
2010, Vol. 29 
