CAJ | 학술논문

电导率是金属材料的重要物理量，电导率能有效的反映出金属的力学性能、热处理状态和腐蚀状态等参数，特别是在航天航空飞行器中，飞行器材料的电导率反映出的金属疲劳程度对于保证飞行器的安全极其重要。无损涡流检测技术对于有色金属电导率有很好的响应。阐述了涡流电导率传感器设计原理，以电磁场理论为基础，以阻抗平面相位法为主要方法，对涡流电导率传感器的结构和参数进行设计和优化，并用CIVA进行了软件仿真和金属样本的实验验证。实验结果表明，实现了高精度，高稳定性的无损涡流电导率测量。
전도솔시금속재료적중요물리량，전도솔능유효적반영출금속적역학성능、열처리상태화부식상태등삼수，특별시재항천항공비행기중，비행기재료적전도솔반영출적금속피로정도대우보증비행기적안전겁기중요。무손와류검측기술대우유색금속전도솔유흔호적향응。천술료와류전도솔전감기설계원리，이전자장이론위기출，이조항평면상위법위주요방법，대와류전도솔전감기적결구화삼수진행설계화우화，병용CIVA진행료연건방진화금속양본적실험험증。실험결과표명，실현료고정도，고은정성적무손와류전도솔측량。
The conductivity of the metallic material is one of the most important physical indexes .Conductivity can effectively reflect the mechanical properties of metals, heat treatment state and corrosion and so on.Especially for aerospace vehicle, conductivity reflects the degree of metal fatigue of materials for the aircraft to ensure the safety of the aircraft, it is extremely important.Eddy current nondestructive testing technology has good electrical conductiv-ity responsibility for non-ferrous metals.This paper describes the design principle of eddy conductivity sensor. Electromagnetic theory is taken as the basis, and the impedance plane phase method is taken as the main method, the structure and parameters of the eddy current conductivity sensor is designed and optimized.The simulation with CIVA and the experimental verification are carried out.The experimental results show that the sensor achieves high precision and high stability for nondestructive eddy conductivity measurement.