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Please use this identifier to cite or link to this item: http://repositorio.unb.br/handle/10482/11342
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Title: A weld defects detection system based on a spectrometer
Authors: Alfaro, Sadek Crisóstomo Absi
Bebiano, Daniel Flávio Vidal
Assunto:: Análise espectral
Soldagem
Solda e soldagem
Soldagem elétrica
Issue Date: Apr-2009
Publisher: MDPI
Citation: ALFARO, Sadek Crisóstomo Absi; BEBIANO, Daniel. A weld defects detection system based on a spectrometer. Sensors, v. 9, n. 4, p. 2851-2861, abr. 2009. Disponível em:<http://www.mdpi.com/1424-8220/9/4/2851?>. Acesso em: 28 set. 2012.
Abstract: Improved product quality and production methods, and decreased production costs are important objectives of industries. Welding processes are part of this goal. There are many studies about monitoring and controlling welding process. This work presents a non-intrusive on-line monitoriment system and some algorithms capable of detecting GTAW weld defects. Some experiments were made to simulate weld defects by disturbing the electric arc. The data comes from a spectrometer which captures perturbations on the electric arc by the radiation emission of chosen lines. Algorithms based on change detection methods are used to indicate the presence and localization of those defects.
Licença:: All articles published by MDPI are made available under an open access license worldwide immediately. This means: everyone has free and unlimited access to the full-text of all articles published in MDPI journals, and everyone is free to re-use the published material given proper accreditation/citation of the original publication, open access publication is supported by authors' institutes or research funding agency by payment of a comparatively low Article Processing Charge (APC) for accepted articles. Fonte: http://www.mdpi.com/about/openaccess. Acesso em: 28 set. 2012.
DOI: https://dx.doi.org/10.3390/s90402851
Appears in Collections:ENM - Artigos publicados em periódicos

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