Design and Performance Research of a New Dual-Excitation Uniform Eddy Current Probe [PDF]
A dual-excitation uniform eddy current probe, composed of two excitation coils placed tangentially and one detection coil placed horizontally, is developed to solve the difficulties of detection rate and direction recognition of crack defect.
Tao Chen +6 more
doaj +2 more sources
Research on Detection Mechanism of Weld Defects of Carbon Steel Plate Based on Orthogonal Axial Eddy Current Probe [PDF]
The uneven surface of the weld seam makes eddy current testing more susceptible to the lift-off effect of the probe. Therefore, the defect of carbon steel plate welds has always been a difficult problem in eddy current testing. This study aimed to design
Linnan Huang +5 more
doaj +2 more sources
Comparison of Inspecting Non-Ferromagnetic and Ferromagnetic Metals Using Velocity Induced Eddy Current Probe [PDF]
A velocity induced eddy current probe has been used to detect cracks in both non-ferromagnetic and ferromagnetic metals. The simulation and experimental results show that this probe can successfully detect cracks in both cases, but further investigation ...
Bo Feng +3 more
doaj +2 more sources
Design and Analysis of Differential Compensated Eddy Current Displacement Sensors [PDF]
The traditional eddy current displacement sensor is limited by the diameter of the probe coil, and the measuring range is relatively small. In order to improve the range of an eddy current displacement sensor, a differential compensated eddy current ...
Yuliang Bian, Kun Zhang, Tiehua Ma
doaj +2 more sources
High-Resolution Spatiotemporal-Coded Differential Eddy-Current Array Probe for Defect Detection in Metal Substrates [PDF]
To address the problems of weak geometric features, low signal response amplitude, and insufficient spatial resolvability of near-surface defects in metal substrates, a high-resolution spatiotemporal-coded eddy-current array probe is proposed.
Qi Ouyang, Yuke Meng, Lun Huang, Yun Li
doaj +2 more sources
Eddy current testing probe optimization using a parallel genetic algorithm [PDF]
This paper uses the developed parallel version of Michalewicz's Genocop III Genetic Algorithm (GA) searching technique to optimize the coil geometry of an eddy current non-destructive testing probe (ECTP). The electromagnetic field is computed using FEMM
Dolapchiev Ivaylo +2 more
doaj +3 more sources
The use of a two-frequency eddy current method for measuring the electrically conductive wall thickness under significant variations in the test parameter and the lift-off [PDF]
The paper addresses the problem of eddy current testing of the wall thickness of light-alloy drill pipes under significant variations in both the test and the influence parameter of the test object – the lift-off between the eddy current probe and the ...
A.E. Гольдштейн +1 more
doaj +2 more sources
Circumferential Crack Detection in Ultra-High-Pressure Tubular Reactors with Pulsed Eddy Current Testing [PDF]
Ultra-high-pressure tubular reactors are crucial pieces of equipment for polyethylene production. Long-term operation under high temperature, high pressure, and other extremely harsh conditions can lead to various defects, with circumferential cracks ...
Yaxing Wang +6 more
doaj +2 more sources
Scanning the steel 08G2B using superminiature eddy current probe [PDF]
The article describes a hardware and software complex designed for defectoscopy and study of material properties. Sections of high-strength steel 08G2B pipes were scanned in the course of the research. The purpose of this study is to determine dependency
Dmitriev Sergey +6 more
doaj +1 more source
Surrogate synthesis of excitation systems for frame tangential eddy current probes [PDF]
Existing scientific studies devoted to the design of eddy-current probes with a priori given configuration of the electromagnetic excitation field, which provide a uniform eddy current density distribution, consider a wide class of such, but are limited ...
Volodymyr Yakovych Halchenko +2 more
doaj +1 more source

