太赫兹科学与电子信息学报Issue(6)：937-941,5.DOI:10.11805/TKYDA201406.0937
电涡流传感器热稳定性标定技术
Research on the test of temperature stability calibration device for eddy current sensor
摘要
Abstract
The displacement detection principle of eddy current sensor is introduced. The temperature drifting phenomena occurred in measuring displacement are analyzed, which are caused by thermal expansion and contraction of sensor winding and detector. Referring to the temperature drifting of sensor, a calibrating device with compensating function of eddy current sensor is manufactured, and the temperature for output voltage of sensor is compensated, which reduces the influence of temperature changes on output voltage of sensor. The implementation method of temperature calibration by this device is proposed and validated in experiment, which realizes the calibration for output voltage of eddy current sensor under the circumstance temperature variation and fixed displacement. Comparing to the detection without temperature compensation, the variation of voltage decreases by about 50%.关键词
电涡流传感器/温度漂移/温度补偿/热稳定性Key words
eddy current sensor/temperature drift/temperature compensation/thermal stability分类
信息技术与安全科学引用本文复制引用
李国会,杨媛,何忠武,田飞,向汝建,徐宏来..电涡流传感器热稳定性标定技术[J].太赫兹科学与电子信息学报,2014,(6):937-941,5.基金项目
高能激光科学与技术重点实验室资助项目 （）
