涡流检测,Eddy current testing
1)Eddy current testing涡流检测
1.Development of electrodes crack eddy current testing system of electric power locomotive;电力机车主极裂纹涡流检测系统的研制
2.The Parameters Optimization of Eddy Current Testing for Tubes Based on Finite Element Analysis;基于有限元分析的管材涡流检测参数优化方法
3.Induction voltage values of the eddy current testing coil with different carburized depths are calculated.根据轴对称涡流电磁场有限元计算的基本原理,开发了有限元分析软件,计算了不同渗碳层深度时涡流检测线圈的感应电压。
英文短句/例句

1.Terminology for nondestructive testing-Eddy current testingGB/T12604.6-1990无损检测术语涡流检测
2.Research on Tangential Turbine Flowmeter Based on Eddy Current Detection Principle基于电涡流检测原理的切向涡轮流量计的研究
3.The Eddy Current Signal Under Magnetic Saturation Condition Signal not Induced by Eddy Current Effect磁饱和后的涡流检测信号的非涡流效应
4.Application and Development of the Roll Eddy Current Inspection in Bao Steel宝钢轧辊涡流检测技术的应用和发展
5.The Development of Eddy Current Testing System and Study on the Forward Problem;电涡流检测系统开发及正向问题研究
6.Eddy current excitation signal source based on DDS technology基于DDS技术的涡流检测激励信号源
7.Design for Signal Source of Variable Frequency used in Pulse Whirlpool Test用于脉冲涡流检测的变频信号源设计
8.On Detection Parameters of Eddy Flow of Stainless Steel Fiber Optic Bound Pipe不锈钢光纤束管涡流检测参数的设计
9.Development of LabVIEW Based Eddy Current Testing System基于LabVIEW的涡流检测系统研制
10.Development of Pulsed Eddy Current Testing System Based on LabVIEW基于LabVIEW的脉冲涡流检测系统
11.Research and Application of Multi-layered Structure Thickness Measurement Using Eddy Current;电涡流检测技术在多层厚度检测中的应用研究
12.Design of Portable Steel Plate Detector Based on Eddy Current Testing Principle基于涡流检测原理的便携式钢板检测仪设计
13.Finite Element Study for 3D Eddy Current and its Application in RFEC Inspection三维涡流场有限元研究及其在远场涡流检测中的应用
14.Design of a Novel Pulsed Eddy Current Testing Probe Based on 3D Magnetic Field Measurement基于三维磁场测量的脉冲涡流检测探头的设计
15.Circuit Design and Simulation of Eddy Current Sensor涡电流检测仪的电路设计及仿真研究
16.Study of Corrosion by Eddy Current Method涡流法在金属锈蚀检测中的应用研究
17.Analysis and Measurement of Fluid Flow Using the Characteristics of Vortex Street;基于涡街特性的流动分析与参数检测
18.Research on Several Key Techniques of Pulsed Eddy Current Nondestructive Testing;脉冲涡流无损检测若干关键技术研究
相关短句/例句

eddy current inspection涡流检测
1.The eddy current inspection in unboiled water heating vessel shows that it is feasible and practical.阐述了多频涡流检测传感器的工作原理、设计和制作过程。
2.Eddy current inspection of aging aircraft has currently achieved new developments with the introduction of Magneto-Optic Imaging(MOI).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。
3.A method of eddy current inspection of hole defect has been presented in this paper.以从长输油管道管上切割下来钢板作为研究对象,在其上面人工用电钻打的孔作为缺陷,研究了有孔洞缺陷时的涡流检测信号。
3)eddy current detection涡流检测
1.Reasonable choice of characteristic frequency in eddy current detection for pressure pipeline;涡流检测压力管道时特征频率的合理选择
2.Study on eddy current detection of hole defects in steel plate by a wavelet analysis method;小波分析用于钢板孔洞的涡流检测研究
3.Theoretical and numerical analysis of the eddy current detection for pressure pipeline;压力管道涡流检测的理论与数值分析
4)eddy-current testing涡流检测
1.Using the technology of eddy-current testing,the electromagnetic characteristic of each coating on the thermal barrier coatings(TBCs) is confirmed.利用涡流检测技术,确定了热障涂层(TBCs)中各部分材料的电磁特性。
2.To research the plate curvature effect on eddy-current testing of gap between curved plates, the finite element method for electromagnetic field is used to compute the planar coil impedance with different plate curvature.为研究曲面体间隙电涡流检测受目标导体曲率的影响,基于电磁场有限元分析方法对平面线圈用于不同曲率目标导体间隙测量时的交流阻抗进行了数值计算,得到了线圈的归一化阻抗平面图,并讨论了由于曲率不同引起的数据误差处理方法,为曲面体间隙的准确测量提供了理论依据。
3.Using the technology of eddy-current testing, the electromagnetic characteristic of each coat on the thermal barrier coatings (TBCs) is confirmed.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。
5)eddy current test涡流检测
1.The Simulation Research of 3D Finite Element for Low Frequency Eddy Current Test of the Tube;管道低频涡流检测的三维有限元仿真研究
2.In this paper ANSYS software is used to do the impedance numerical evaluation of eddy current test coil.本文利用ANSYS软件通过涡流检测线圈阻抗的数值计算,表明涡流检测传感器相对于被测导体的提离效应在阻抗平面图上是近似为直线的轨迹,提出利用相位变换的方法实现提离干扰信号的抑制,并在此原理基础上,设计了以ARM9微处理器为核心的、基于幅相鉴别抑制提离效应的涡流电导仪硬件电路,并给出了系统的软件层次框架。
3.The eddy current sensor must be designed and evaluated so as to meet the requirement of special eddy current test.为满足特定的涡流检测要求,须进行涡流传感器设计与分析。
6)eddy current detecting涡流检测
1.An eddy current detecting and imaging apparatus has been developed in this paper.在无损检测的几种检测技术中,相对于其它几种检测技术的发展情况,涡流检测技术仍未得到充分的发展。
延伸阅读

涡流检测  通过测量导电物体在交变磁场中的感应涡流的变化,来对物件进行探伤或物理特性判定的一种无损检测方法。    原理  将通有交流电的线圈置于待测的金属板上或套在待测的金属管外(见图)。这时线圈内及其附近将产生交变磁场,使试件中产生呈旋涡状的感应交变电流,称为涡流。涡流的分布和大小,除与线圈的形状和尺寸、交流电流的大小和频率等有关外,还取决于试件的电导率、磁导率、形状和尺寸、与线圈的距离以及表面有无裂纹缺陷等。因而,在保持其他因素相对不变的条件下,用一探测线圈测量涡流所引起的磁场变化,可推知试件中涡流的大小和相位变化,进而获得有关电导率、缺陷、材质状况和其他物理量(如形状、尺寸等)的变化或缺陷存在等信息。但由于涡流是交变电流,具有集肤效应,所检测到的信息仅能反映试件表面或近表面处的情况。    应用  按试件的形状和检测目的的不同,可采用不同形式的线圈,通常有穿过式、探头式和插入式线圈3种。穿过式线圈用来检测管材、棒材和线材,它的内径略大于被检物件,使用时使被检物体以一定的速度在线圈内通过,可发现裂纹、夹杂、凹坑等缺陷。探头式线圈适用于对试件进行局部探测。应用时线圈置于金属板、管或其他零件上,可检查飞机起落撑杆内筒上和涡轮发动机叶片上的疲劳裂纹等。插入式线圈也称内部探头,放在管子或零件的孔内用来作内壁检测,可用于检查各种管道内壁的腐蚀程度等。为了提高检测灵敏度,探头式和插入式线圈大多装有磁芯。涡流法主要用于生产线上的金属管、棒、线的快速检测以及大批量零件如轴承钢球、汽门等的探伤(这时除涡流仪器外尚须配备自动装卸和传送的机械装置)、材质分选和硬度测量,也可用来测量镀层和涂膜的厚度。    优缺点  涡流检测时线圈不需与被测物直接接触,可进行高速检测,易于实现自动化,但不适用于形状复杂的零件,而且只能检测导电材料的表面和近表面缺陷,检测结果也易于受到材料本身及其他因素的干扰。