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Efficient pulse com...
Efficient pulse compression favourable thermal excitation scheme for non-destructive testing using infrared thermography : a numerical study
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- Siddiqui, J.A. (författare)
- Department of Electronics, Medi-Caps University, A.B. Road, Pigdamber Rau, Indore-453331 Indore Madhya Pradesh, India
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- Patil, S. (författare)
- Department of Electronics, Medi-Caps University, A.B. Road, Pigdamber Rau, Indore-453331 Indore Madhya Pradesh, India
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- Chouhan, Shailesh Singh (författare)
- Luleå tekniska universitet,EISLAB
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- Wuriti, S. (författare)
- Department of Mathematics, K.L. University, Vaddeswaram, AP 522502, India
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- Arora, V. (författare)
- RBU, Punjab, India
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- Mulaveesala, R. (författare)
- Indian Institute of Technology Ropar, Bara Phool, Birla Seed Farms, Rupnagar, Punjab 140001, India
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Department of Electronics, Medi-Caps University, AB. Road, Pigdamber Rau, Indore-453331 Indore Madhya Pradesh, India EISLAB (creator_code:org_t)
- 2020-07-28
- 2020
- Engelska.
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Ingår i: Electronics Letters. - : Institution of Engineering and Technology. - 0013-5194 .- 1350-911X. ; 56:19, s. 1003-1005
- Relaterad länk:
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https://onlinelibrar...
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Ämnesord
Stäng
- Active thermal non-destructive testing (TNDT) has emerged as a swift, robust and cost-effective non-contact inspection method used to detect the surface and sub-surface defects present in a wide verity of solid materials. To further increase the efficacy of the process, various pulse-compression-based post-processing techniques are in use. However, the applicability of pulse compression-based thermographic methods has limited due to the presence of side lobes that degrades the energy concentration capabilities within the main lobe. In order to address this limitation, this work proposes a poly-phase code (P4-code). P4 codes are very efficient and robust in the reduction of distribution of energy in side lobes by concentrating on the main lobe. This Letter proposes a numerical study on the applicability of P4 codes-based pulse compression favourable thermal wave imaging approach for TNDT for testing and evaluation of steel specimen for identification of flat-bottom hole defects located at different depths. Further performance of the proposed method is compared with the widely used linear frequency modulated thermal wave imaging by considering the signal-to-noise ratio as a figure-of-merit.
Ämnesord
- TEKNIK OCH TEKNOLOGIER -- Elektroteknik och elektronik -- Annan elektroteknik och elektronik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Electrical Engineering, Electronic Engineering, Information Engineering -- Other Electrical Engineering, Electronic Engineering, Information Engineering (hsv//eng)
Nyckelord
- photothermal effects
- steel
- infrared imaging
- pulse compression
- inspection
- frequency modulation
- nondestructive testing
- Cyberfysiska system
- Cyber-Physical Systems
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
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