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在无损测量当中,电涡流传感器测量因为能够实现工件在线非接触测量,测量精度高、无污染、制作价格低廉等优点,一直被作为一种重要的检测设备,在涡流技术高速发展的今天,电涡流的优势越来越明显应用也越来越广泛。电涡流传感器是电涡流测量淬火层厚度的核心部分,传感器的测量精度直接影响整个测厚设备的精度,传统的电涡流传感器包括测量探头、整流滤波电路的设计、放大器的设计等,电涡流传感器的精确测量也离不开位移测厚标定器,这里主要研究电涡流测厚核心电路的设计。
Among the non-destructive measurement, eddy current sensor measurement has been used as an important testing equipment because of the advantages of non-contact measurement, high accuracy, non-pollution and low production cost. As the rapid development of eddy current technology, The advantages of eddy current more and more obvious application is also more and more widely. Eddy current sensor eddy current measurement is the heart of quenching layer thickness, the measurement accuracy of the sensor directly affects the accuracy of the entire thickness measurement equipment, the traditional eddy current sensor including the measurement probe, the rectifier filter circuit design, amplifier design, eddy current sensor The precise measurement is also inseparable from the displacement thickness gauge calibrator, where the main study Eddy current thickness measurement of the core circuit design.