Results 51 to 60 of about 406,343 (328)

Optimization of Pulsed Eddy Current Probes

, 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., Sablik, M., Krzywosz, K., Doherty, J.   +3 more
openaire   +3 more sources

Reduction of Pulsed Eddy Current Probe Footprint Using Sequentially Excited Multiple Coils

Journal of nondestructive evaluation
In the detection of corrosion under insulation (CUI) using pulsed eddy current testing (PECT) method, it is of great significance to reduce the footprint of the probe for improving the spatial resolution to local corrosion.
Zhiyuan Xu, Changchun Zhu, Junqi Jin, Kai Song   +3 more
semanticscholar   +1 more source

Eutectozymes as Soft Hybrid Materials for Advanced Biocatalysis

Advanced Materials, EarlyView.
Eutectozymes are sustainable hybrid materials that embed a GOx–HRP cascade within hydrophobic eutectogels featuring a dual supramolecular–covalent network. This architecture preserves native enzyme structure and stability, enables efficient heterogeneous biocatalysis in aqueous media, and positions eutectogels as robust platforms for next‐generation ...
Manuel Eduardo Martinez Cartagena, Lucia Suarez, Aitor Ontoria, Francisca J. Benitez, Elixabete Rezabal, María Soledad Orellano, Marcelo Calderón, Cristián Huck‐Iriart, Agustin S. Picco, Matias L. Picchio, Ana Beloqui   +10 more
wiley   +1 more source

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.
Xingliang Liu, Guiyun Tian, Yu Chen, Haoze Luo, Jian Zhang, Wuhua Li   +5 more
doaj   +1 more source

Modelling of pulsed eddy current testing of wall thinning of carbon steel pipes through insulation and cladding [PDF]

, 2014
Conventional eddy current techniques have been used to a great extent for detection of surface breaking defects in conductive materials. Pulsed Eddy Current (PEC) techniques excite the probe’s driving coil with a repetitive broadband pulse, usually a ...
Majidnia, S, Nilavalan, R, Rudlin, J
core  

Pulsed Eddy-Current Crack-Characterization Experiments

, 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.
openaire   +3 more sources

Magnetic Textiles: A Review of Materials, Fabrication, Properties, and Applications

Advanced Materials Technologies, EarlyView.
Magnetic textiles (M‐textiles) are emerging as a programmable materials platform that merges magnetic matter with hierarchical textile structures. This article consolidates magnetic material classes, textile architectures, and fabrication and magnetization strategies, revealing structure–property–function relationships that govern magneto‐mechanical ...
Li Ke, Moses Kumi, Xiaoming Tao, Junhong Pu   +3 more
wiley   +1 more source

Application of Pulsed Eddy Current Detection in Pipeline of Nuclear Power Plant

南方能源建设
[Introduction] In order to improve heat exchange efficiency, the condensate pipelines, main water supply pipelines drain pipelines and partial extraction pipelines of nuclear power plants are all coated outside the pipelines. At present, the test methods
Yang HAN, Qi ZHU, Yongan CHEN, Ning XU
doaj   +1 more source

Minimizing the effect of probe-to-metal spacing in eddy current testing [PDF]

, 1959
"January 8, 1959."Two titles published in one volume. "Reduction of probe-spacing effect in pulsed eddy current testing" by Donald L. Waidelich and "Minimizing the effect of probe-to-metal spacing in eddy current testing" by C.J. Renken Jr.
Renken Jr., C.J., Waidelich, Donald L.
core  

High resolution miniature dilatometer based on AFM piezocantilever

, 2009
Thermal expansion, or dilation, is closely related to the specific heat, and provides useful information regarding material properties. The accurate measurement of dilation in confined spaces coupled with other limiting experimental environments such as ...
Graf, D., Murphy, T. P., Park, J. -H., Schmiedeshoff, G. M., Tozer, S. W.   +4 more
core   +1 more source