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A differential planar eddy currents probe: Fundamentals, modeling and experimental evaluation

机译：差分平面涡流探头：基础知识，建模和实验评估

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摘要

This paper presents a new eddy current probe specifically designed to inspect imperfections along Friction Stir Welding joints. The proposed probe has a planar design and a differential operation introducing several innovative aspects in eddy currents generation and sensing. The fundamentals on the probe operation are presented and explained in the presence of a metallic part to be inspected with and without defects. A finite element model was used to detail the probe operation and to assess the influence of several operational parameters on the probe response. Finally, the simulations were validated experimentally using a prototype probe produced in printed circuit board and an aluminum alloy block with standard defects produced using electro-discharge machining.
机译：本文介绍了一种新的涡流探头，该探头专门设计用于检查搅拌摩擦焊接接头的缺陷。所提出的探头具有平面设计和差分操作，在涡流产生和传感方面引入了几个创新方面。在要检查的金属零件是否有缺陷的情况下，介绍并解释了探头操作的基本原理。使用有限元模型来详细说明探针的操作并评估几个操作参数对探针响应的影响。最后，使用在印刷电路板上生产的原型探针和通过放电加工产生的具有标准缺陷的铝合金块，通过实验对仿真进行了验证。

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  • 来源
    《NDT & E international》 |2012年第2012期|p.85-93|共9页
  • 作者

    Luis S. Rosado; Telmo G. Santos; Pedro M. Ramos; Pedro Vilaca; Moises Piedade;

  • 作者单位

    Institute Superior Tecnico (IST), Universidade Tecnica de Lisboa, 1049-001 Lisboa, Portugal,Instituto de Telecomunicacbes (IT), Instituto Superior Tecnico, Universidade Tecnica de Lisboa, 1049-001 Lisboa, Portugal,Instituto de Engenharia de Sistemas e Computadores (INESC), Investigacao e Desenvolvimento, 1000-029 Lisboa, Portugal,Universidade Tecnica de Lisboa, Instituto Superior Tecnico, Av. Rovisco Pais, 1, 1049-001 Lisboa, Portugal;

    UN1DEMI, Departamento de Engenharia Mecanica e Industrial, Faculdade de Ciencias e Tecnologia, Universidade Nova de Lisboa, 2829-516 Caparica, Portugal;

    Institute Superior Tecnico (IST), Universidade Tecnica de Lisboa, 1049-001 Lisboa, Portugal,Instituto de Telecomunicacbes (IT), Instituto Superior Tecnico, Universidade Tecnica de Lisboa, 1049-001 Lisboa, Portugal;

    Institute Superior Tecnico (IST), Universidade Tecnica de Lisboa, 1049-001 Lisboa, Portugal,Instituto de Engenharia Mecanica (IDMEC), 1049-001 Lisboa, Portugal;

    Institute Superior Tecnico (IST), Universidade Tecnica de Lisboa, 1049-001 Lisboa, Portugal,Instituto de Engenharia de Sistemas e Computadores (INESC), Investigacao e Desenvolvimento, 1000-029 Lisboa, Portugal;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    eddy currents; planar probe; differential probe; non-destructive testing; friction stir welding;

    机译：涡流;平面探针差分探头非破坏性测试;搅拌摩擦焊;

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