An eddy current test device is used for testing tubes, rods, strips or the like. Any material defects present affect the voltage induced in a receiver coil (10) and can thus be recognised. So as to be able to recognise faults even close to the central axis (2) of the test specimen ...
Eddy Current Test is a non-destructive test method using electro-magnetic sensory technology. It is suitable for testing shell and tube evaporator, as well as condenser. What problems can be detected? Pin-hole Pitting due to corrosion Crack Wear by support plate What are the benefits? Worn tu...
Eddy current test was performed using those ECT probes on artificially flawed specimens. After analyzing the output signals, we found that, for the effective testing, the width of a coil should be determined considering the pitch of the fins of a tube. And we also learned that the frequency ...
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 ofeddy current testcoil.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...
Eddy current testing on tubesEddy current testing on tubes in heat exchangers, condensers, air conditioning and air coolers, requires specialist equipment and technical expertise. Intertek’s NDT inspectors can perform this specialist advanced method. Need...
The remote field eddy current (RFEC) testing for high conductive tubes, both ferrous and nonferrous, has the characteristic of through-transmission, so it is sensitive for the defect in the tube wall. The problem of rib tube(cooling rib or tube support plate) testing in industry was discussed...
In order to find out the leakage cause of titanium tubes used in a heat exchanger in a nuclear power station,eddy current testing was adopped to examine the samples of titanium tubes from this station.Based on the results of testing and the operation history of the station,failure types of...
The remote field Eddy current technique (RFECT) is the unique potential method capable of inspecting U-shape ferromagnetic heat-exchanger tubes. Basic experimental study on RFECT has been part of 45 mm in minimum radius. While higher test frequency generates larger defect signal, it causes the rap...
eddy current test涡流探伤 1.: This article describes the basic principles of eddy current test and analyzes the acceptance standards of eddy current test for boiler tubes at home and abroad.叙述了涡流探伤基本原理,分析了国内外锅炉钢管涡流探伤验收标准,提出了锅炉钢管涡流探伤验收等级标准。 3)Eddy dete...
1) eddy current testing 涡流无损检测1. The paper deals with evaluation of dyadic Green’s functions that arise in eddy current testing for a conductive plate. 根据涡流无损检测中的几组典型数据,比较了用该文方法和直接数值积分法计算并矢格林函数的精度和求解速度。