高性能涡流检测传感器的研制

Development of High Performance Eddy Current Testing Transducer

传感器是涡流检测设备的关键器件。在分析了涡流检测原理和影响检测可靠性的几个主要因素的基础上,确定了新型传感器设计和制作的要求及方法;并介绍了自制及原装(进口)传感器与德国进口STATOGRAPH ECM 2.841涡流检测仪联机后,对锆合金管材人工缺陷标样、管材几何尺寸变化较大的试件测试结果。结果表明,自制的涡流传感器性能水平已达到进口仪器原配传感器的测试效果,具有抗干扰性能强、灵敏度高、实用效果好以及性价比高的特点。

Transducer is the key device of eddy current testing equipment. Based on the principle of eddy current testing, the chief factors which affect the reliability of testing were analyzed, the method and requirements for the new type transducer＇s designing and manufacturing were determined. After connected with the type of STATOGRAPH ECM 2. 841 eddy current testing instrument made in Germany, the test on the zirconium alloy tube with standard artificial defects and on the zirconium alloy tube with dimensions variation by the original transducer and the ones made by ourselves have been made respectively. The results show that the transducers made by ourselves can reach the effectivity of the original transducer and retain superiorities of high anti-interference, high sensitivity, good practice effectivity and high property to price ratio.