Results 61 to 70 of about 7,457,018 (172)

Image-Based Feature Extraction Technique for Inclined Crack Quantification Using Pulsed Eddy Current

Chinese Journal of Mechanical Engineering, 2019
Existing eddy current non-destructive testing (NDT) techniques generally do not consider the inclination angle of inclined cracks, which potentially harms a larger region of a tested structure.
Faris Nafiah, Ali Sophian, Md Raisuddin Khan, Syamsul Bahrin Abdul Hamid, Ilham Mukriz Zainal Abidin   +4 more
doaj   +1 more source

Rotor eddy current power loss in permanent magnet synchronous generators feeding uncontrolled rectifier loads

, 2014
Analytical methods and transient finite element analysis (FEA) with rotating mesh are used to calculate rotor eddy current power loss in a permanent magnet synchronous generator (PMSG) connected to an uncontrolled bridge rectifier.
Sharkh, S.M., Qazalbash, A., Abusara, M.A., Irenji, N.T., Wills, R.G.A.   +4 more
core   +1 more source

Analytical time-domain model of transient eddy current field in pulsed eddy current testing

Acta Physica Sinica, 2010
The transient eddy current field is analytically modeled by applying inverse Laplace transform to pulsed eddy current testing. The closed-form solution to transient eddy current field in a complex domain is obtained by using the truncated region eigenfunction expansion (TREE) method and the theory of reflection and transmission of electromagnetic waves.
null Cao Bing-Hua, null Yang Xue-Feng, null Fan Meng-Bao   +2 more
openaire   +1 more source

Enhanced Nondestructive Testing Using Pulsed Eddy Current and Electromagnetic Ultrasonic Techniques

Applied Sciences
Owing to the challenging working conditions aboard ships, equipment may develop various defects that traditional nondestructive testing methods cannot fully detect.
Xinyu Zheng, Jing Huang, Ningzhao Luo
doaj   +1 more source

Wavelet-based PCA defect classification for pulsed eddy current NDT [PDF]

, 2005
A new approach for defect classification and quantification by using pulsed eddy current sensors and integration of principal component analysis and wavelet transform for feature based signal interpretation is presented. After reviewing the limitation of
Tian, G.Y., Sophian, Ali, Taylor, D., Rudlin, J., Rudlin, J.R., Sophian, A.   +5 more
core   +1 more source

The Oceanic Eddy Heat Transport

, 2002
The rectified eddy heat transport is calculated from a global high resolution ocean general circulation model. The eddy heat transport is found to be strong in the western boundary currents, the Antarctic Circumpolar Current, and the equatorial region ...
Marotzke, J., Jayne, S.R.
core  

Variable Dimensional Bayesian Method for Identifying Depth Parameters of Substation Grounding Grid Based on Pulsed Eddy Current

Energies
The substation grounding grid, as the primary path for fault current dissipation, is crucial for ensuring the safe operation of the power system and requires regular inspection.
Xiaofei Kang, Zhiling Li, Jie Hou, Su Xu, Yanjun Zhang, Zhihao Zhou, Jingang Wang   +6 more
doaj   +1 more source

Time-Gating of Pulsed Eddy Current Signals for Defect Characterization and Discrimination in Aircraft Lap-Joints [PDF]

, 1997
Pulsed eddy current (PEC) nondestructive testing differs from conventional eddy current techniques in that the probe coil is excited by a pulse, rather than continuous excitation at a single frequency.
Moulder, John, Rose, James, James H. Rose, Jay A. Bieber, Sunil K. Shaligram, John C. Moulder, Shaligram, Sunil, Bieber, Jay   +7 more
core   +1 more source

Characterization of Multi-Layer Rolling Contact Fatigue Defects in Railway Rails Using Sweeping Eddy Current Pulse Thermal-Tomography

Applied Sciences
Railways play a pivotal role in national economic development, freight transportation, national defense, and regional connectivity. The detection of rolling contact fatigue (RCF) defects in rail tracks is essential for railway safety and maintenance. Due
Hengbo Zhang, Shudi Zhang, Xiaotian Chen, Yingying Li, Yiling Zou, Yizhao Zeng   +5 more
doaj   +1 more source

Morphology investigation on direct current pulsed gas tungsten arc welded additive layer manufactured Ti6Al4V alloy [PDF]

, 2011
The effects of pulsed gas tungsten arc weldingparameters on the morphology of additive layer manufacturedTi6Al4V has been investigated in this study.
Rush, M. T., Wang, Fude, Fude Wang, Matthew Rush, Williams, Stewart W., Stewart Williams   +5 more
core   +1 more source