Parameter Identification and Transition Process Online Calibration Method of Pulsed Eddy Current Receiving Coil Based on Underdamped Dynamic Response Characteristics [PDF]
SensorsIn order to solve the problem that the system parameters will be offset during the detection process of the pulsed eddy current receiving coil, this paper first analyzes the response signal of the receiving system and the deconvolution process of the ...
Zhiwu Zeng +10 more
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Multi-Modal Joint Pulsed Eddy Current Sensor Signal Denoising Method Integrating Inductive Disturbance Mechanism [PDF]
SensorsPulsed eddy current (PEC) testing technology has been widely used in the field of non-destructive testing of metal grounding structures due to its wide-band excitation and response characteristics.
Yun Zuo +11 more
doaj +2 more sources
Improvement of Defect Feature Extraction in Eddy Current Pulsed Thermography [PDF]
IEEE Access, 2019 Defect inspection based on eddy current pulsed thermography (ECPT) technique is a research focus in non-destructive testing (NDT) area. In this paper, a novel defect feature extraction approach for automated defect analyzing based on ECPT has been ...
Peipei Zhu, Lulu Tian, Yuhua Cheng
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Non-Contact Degradation Evaluation for IGBT Modules Using Eddy Current Pulsed Thermography Approach
Energies, 2020 In this paper, a non-contact degradation evaluation method for insulated gate bipolar transistor (IGBT) modules is proposed based on eddy current pulsed thermography approach.
Haoze Luo, Wuhua Li, Xingliang Liu
exaly +3 more sources
Pulsed Eddy-Current Crack-Characterization Experiments [PDF]
, 1986 In the pulsed eddy-current (PEC) method of flaw detection, repetitive pulses of current in a transmitter coil are used to excite eddy currents in the test specimen. A separate receiver is excited by the transmitted and reflected fields, and variations in the receiver response are used to locate and characterize material variations of interest.
Fisher, J., Beissner, R.
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Research on geometric parameter quantification of rail rolling contact fatigue crack damage based on 2D optical image [PDF]
Scientific ReportsHigh-speed railway is a comprehensive carrier of high-technology. As an important infrastructure of high - speed rail tracks, rail breakage and derailment accidents caused by rail rolling contact fatigue crack damage are quite common.
Yu Wang +3 more
doaj +2 more sources
Optimization of Pulsed Eddy Current Probes [PDF]
, 1983 The objective of the ongoing work reported here is to optimize pulsed eddy current instrumentation for the detection of small flaws, specifically 250 × 125 pm crack-like defects in low conductivity materials such as titanium 6-4. Our approach parallels that employed in the optimization of continuous wave eddy current systems1,2 in that we seek first to
Beissner, R. +3 more
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Sensors, 2016 This paper reviews recent developments of eddy current pulsed thermography (ECPT) for material characterization and nondestructive evaluation (NDE). Due to the fact that line-coil-based ECPT, with the limitation of non-uniform heating and a restricted ...
Bin Gao, Yunlai Gao, Kongjing Li
exaly +3 more sources
A Model of Pulsed Eddy Current Crack Detection [PDF]
, 1986 As its name implies, the pulsed eddy current (PEC) method makes use of a short burst of excitation current, rather than continuous sinusoidal (CW) current as is the case with conventional eddy current probes. Reflected fields, including flaw signal fields, are therefore time-dependent in the pulsed case, and are characterized by peak signal amplitude ...
Beissner, R., Fisher, J.
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Research on Defects Inspection of Solder Balls Based on Eddy Current Pulsed Thermography
Sensors, 2015 In order to solve tiny defect detection for solder balls in high-density flip-chip, this paper proposed feasibility study on the effect of detectability as well as classification based on eddy current pulsed thermography (ECPT).
Gui Yun Tian, Yizhe Wang
exaly +3 more sources