涡流检测

为此首先对涡流检测探头进行研究，研制了基于GMR（巨磁电阻）传感器的电涡流探头，并实现了GMR传感器零电势的自动补偿技术。

Firstly , the GMR based ECT probe is developed . Then the automatic compensation method for zero potential of the GMR eddy current probe is studied .

本文基于电磁场理论和有限元数值仿真对碳纤维复合材料的涡流检测展开研究。

In this thesis , we study the ECT of CFRP based on the electromagnetic field theory and the finite element ( FE ) method .

蒸汽发生器管道涡流检测Benchmark模型的数值计算

Numerical analysis of benchmark models for eddy current testing of steam generator tubes

基于DDS技术的模块化多频涡流检测系统设计

Modular Multi-Frequency Eddy Current Test System Design Based on DDS Technology

DDS技术在涡流检测中的应用

The Application of DDS Technology in the Eddy Current Instrument

根据电磁感应原理，以PC计算机系统为核心，设计了一种由计算机控制的涡流检测仪器。

An instrument based on the principle of electromagnetic induction was developed for eddy current testing , which controlled by computer .

mis场效应晶体管远场涡流检测技术在国外发达国家中已充分应用于现场，且收效显著。

Remote-field eddy current-based non-destructive inspection technology has been widely used in advanced nations with significant effectiveness .

基于DDS技术的涡流检测激励信号源

Eddy current excitation signal source based on DDS technology

采用X射线衍射法测定应力消除前后铝合金试样的残余应力，利用电导率涡流检测技术与拉伸试验相结合的方法来评价铝合金深冷处理后的抗应力腐蚀性与机械性能等质量指标。

Residual stresses were measured by X-ray diffraction , and eddy current electrical conductivity testing was applied to control the variation of mechanical properties .

提高Zr－4管涡流检测信噪比及可靠性方法研究

The Method Research on Improving Singnal-to-Noise Ratio and Reliability in Eddy Testing for Zr-4 Tubes

涡流检测（ET）具有易耦合、速度快、成本低等优点，已广泛应用于各工业部门。

Eddy current testing ( ET ) is widely applied in various industrial sections for its unique advantages such as easy coupling , speediness , and low cost .

涡流检测中X-R正交分解器的实现及误差分析

Implementation and error analysis of X-R orthogonal decomposer for eddy current testing

MAX038及其在智能涡流检测仪中的应用

MAX038 & Its Application On The Intelligent EDDY Current Instrument

近年来迅速发展的磁光成像（MOI）技术使涡流检测技术得到了新的进展。

Eddy current inspection of aging aircraft has currently achieved new developments with the introduction of Magneto-Optic Imaging ( MOI ) .

利用涡流检测技术，确定了热障涂层（TBCs）各部分材料的电磁特性。

Using the technology of eddy-current testing , the electromagnetic characteristic of each coat on the thermal barrier coatings ( TBCs ) is confirmed .

本文对蒸汽发生管道涡流检测中的细孔状缺陷进行了模拟，涡流探头为一对差动式Bobbin线圈。

In this paper , the simulation of a fine hole in a steam generator tube wall was carried out . The ECT probe is of a pair of difference bobbin coils .

首先分析了阻抗变化数学模型，其次研究其求解方法和计算的两个难点：Bessel函数积分的计算方法及广义积分上下限的确定方法；在此基础上，建立了多层结构厚度电涡流检测仿真器；

In chapter 3 , the computing techniques including the solving method of the Bessel function integrals for the probe coil impedance mathematical model are firstly investigated and then an ECT simulator for multi-layered structure thickness measurement is developed .

研究了在涡流检测中用神经网络对缺陷进行分类的方法，针对LVQ神经网络学习算法的不足，提出了改进算法，提高了网络分类的可靠性。

The classification of defects by neural network in eddy current testing was studied . In light of the shortage of LVQ neural network study algorithm , an improved algorithm was put forward to heighten the reliability of classification .

介绍应用于涡流检测系统中的X-R正交分解器的原理及实现，并从不同的误差来源对其进行了分析，给出了X-R正交分解器的误差仿真分析结论。

Implementation of X-R orthogonal decomposer for eddy current testing is described . Emulation analysis of the cause of system error has been carried out and its result is given .

论述了用于铝合金质量检测的WFL双频涡流检测仪的设计思路、检测原理和电路实现。

The designing idea , testing principle and realization of electric circuit about the two - frequency eddy testing instrument WFL for aluminum alloy quality inspection are introduced .

制作了不同结构的TBCs试样，进行了测量试验，取得了较为满意的结果，并得到了涡流检测TBCs厚度的校准试样要求。

TBCs sample of different structure is made , measurement experiment is conducted , a satisfactory result is acquired , and the requirement of calibration sample is gained , which is used in measuring the thickness of TBCs with eddy-current testing method .

文中首次应用时域有限元-边界元耦合法（T-FEBEM）研究了涡流检测中有限厚平板导体中含有窄裂缝时的瞬态涡流场。

A time-stepping finite-element boundary-element coupling method ( T-FEBEM ) is employed to study the transient fields of a plate conductor with a crack for pulsed eddy current testing .

电涡流检测技术在多层厚度检测中的应用研究

Research and Application of Multi-layered Structure Thickness Measurement Using Eddy Current

铁轨部件表面裂纹的快速涡流检测系统设计

Design of Crack-detecting System Based on Eddy Current for Rail Part

国外钢轨涡流检测技术现状

A review of eddy current testing of rails in foreign countries

连铸坯涡流检测设备的分析和探讨

Analysis and discussions about eddy current inspection equipment for CC Slabs

抽油杆涡流检测探头的制作

Development of the Special Eddy Current Probe for Sucker Rods Testing

基于小波变换的轮毂表面裂纹电涡流检测系统

Eddy Current Testing Surface Crack of Hub Based on Wavelet Transform

金属微裂纹的谐振式涡流检测

Measurement of metallic surface crack by using eddy current resonance testing

相位放大技术在远场涡流检测中的应用

Application of phase amplification technique to remote field eddy current inspection