利用数值模拟和实验研究两种手段，从频散的角度分析了基于磁致伸缩效应的导波无损检测技术在圆管检测中的应用。

In view of dispersion, the application of guided wave NDT of pipe based on magnetostrictive effect was analyzed by the combination of numerical simulation and experimental research.

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在方向的测量中使用了三个传感器代替传统的单个传感器测量以减小加速度计与磁通门计在较小角度时灵敏度的下降。

Instead of using one sensor to measure the direction, this system uses three perpendicularly mounted sensors to measure one direction so as to avoid the sensibility loss on small angle.

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对磁敏电阻的阻值随其在磁场中的角度位置变化而改变这一特性进行了实验研究。

The research is based on properties of magnetoresistor, whose resistance varies with the angle position in the magnetic field.

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