电涡流传感器静动态校准研究现状综述

A Review of Current Research on Static and Dynamic Calibration of Eddy Current Sensors

摘要: 电涡流传感器在长期使用过程中，可能会因为老化或者受客观环境的影响，指示值会出现很大的误差甚至错误，所以需要根据电涡流传感器的性能定期地对其进行动态或者静态校准，及时发现并处理电涡流传感器存在的问题，校准时，感应盘使用被校准传感器实际工况中所感应的金属导体材料制成，这样来保证电涡流传感器测量结果的准确性，校准周期一般不超过一年。目前对于电涡流传感器的校准主要分为静态校准和动态校准，对于静态校准主要存在校准的量程范围短、效率低的问题，对于动态校准主要存在校准频率范围存在局限性，校准误差大的问题，且静动态校准均为独立的装置分开校准。本文针对电涡流传感器的校准，首先描述了电涡流传感器的工作原理和校准方法，然后对于国内外在电涡流传感器校准方面研究进行了总结。

Abstract: During long-term use, eddy current sensors may experience significant errors or even erroneous readings due to aging or environmental influences. Therefore, regular dynamic or static calibration is necessary to identify and address problems promptly. During calibration, the induction disk is made of the same metal conductor material sensed by the sensor under actual operating conditions to ensure the accuracy of the measurement results. The calibration cycle generally does not exceed one year. Currently, eddy current sensor calibration is mainly divided into static and dynamic calibration. Static calibration suffers from short calibration range and low efficiency, while dynamic calibration is limited by frequency range and large calibration errors. Furthermore, static and dynamic calibrations require separate devices. This paper focuses on eddy current sensor calibration, first describing the working principle and calibration methods, and then summarizing domestic and international research on eddy current sensor calibration.