DEPTH DETECTION OF CONDUCTING MARINE MINES VIA EDDY-CURRENT AND CURRENT-CHANNELING RESPONSE
نویسندگان
چکیده
منابع مشابه
Depth Detection of Conducting Marine Mines via Eddy-current and Current-channeling Response
A novel scheme for detecting the location of a metallic mine (modeled as a perfectly conducting sphere and spheroid) in marine environment is presented. This technique takes into account Eddy-Current response (ECR) induced on the conducting marine mines as well as Current-Channeling response (CCR) associated with the perturbation of currents induced in the conductive marine environment. It leve...
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Eddy-current nondestructive evaluation is commonly carried out using single frequency time harmonic excitations, but a pulsed excitation offers a simple and effective alternative. The pulse signals have been calculated for a probe coil whose current rises and falls exponentially, approximating a square wave when the exponential time constant is small. Predictions of the induced electromotive fo...
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Precipitation hardening is the most common method in the strengthening of aluminium alloys. This method relies on the decrease of solid solubility with temperature reduction to produce fine precipitations which impede the movement of dislocations. The quality control of aluminium alloy specimens is an important concern of engineers. Among different methods, non-destructive techniques are the...
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Exist forms and criticalities of disfigurements of marine engines were studied from main propulsive engine, auxiliary facility and hull. Eddy current Non-destructive testing method was brought forward to disfigurement inspection of marine engines with advantages such as celerity and nicety. Cracks, as one form of disfigurements, testing of marine engines were demonstrated in detail, and the dev...
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ژورنال
عنوان ژورنال: Progress In Electromagnetics Research
سال: 2009
ISSN: 1559-8985
DOI: 10.2528/pier09011301