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The reliability of defect sentencing in manual ultrasonic inspection

机译：手动超声波检查中缺陷量刑的可靠性

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摘要

A general model for NDE inspection techniques that predicts the probability of missing critical defects and misclassifying harmless defects has been developed. The model is exercised for the quantification of risks involved in v-butt weld measurement of defects, in relation to restricted access and the effect of human factors. The NDT technique modelled here is the 20 dB drop technique used in ultrasonic testing. The general methodology is based on quadrature summation, which allows all errors to be treated in an identical way. An explanation of the framework and methodology, as well as the data mining used to populate the model with human factors error probabilities, etc., are also presented here. The model is used in the first instance to quantify the possible consequences due to access limitations in v-butt weld inspections. Generalisation of the model to other techniques, such as manual eddy current inspection, is also discussed.
机译：已经开发出一种用于预测无缺陷缺陷和对无害缺陷进行错误分类的概率的无损检测技术的通用模型。该模型用于量化与限制接触和人为因素影响有关的对接焊缝缺陷测量中的风险。此处建模的NDT技术是超声测试中使用的20 dB下降技术。通用方法基于正交求和，该求和允许以相同方式处理所有错误。这里还介绍了框架和方法的说明，以及用于用人为因素错误概率填充模型的数据挖掘等。该模型首先用于量化由于对接焊缝检查中的访问限制而可能造成的后果。还讨论了将模型推广到其他技术（例如手动涡流检查）的方法。

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  • 来源
    《NDT & E international》 |2012年第2012期|p.101-110|共10页
  • 作者

    Abdul-Hannan Ali; Daniel Balint; Andrew Temple; Pat Leevers;

  • 作者单位

    Department of Mechanical Engineering, Imperial College London, London SW7 2AZ, UK;

    Department of Mechanical Engineering, Imperial College London, London SW7 2AZ, UK;

    Department of Mechanical Engineering, Imperial College London, London SW7 2AZ, UK;

    Department of Mechanical Engineering, Imperial College London, London SW7 2AZ, UK;

  • 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

    ultrasonic modelling; defects; probability of detection (POD); reliability;

    机译：超声波建模缺陷检测概率（POD）;可靠性;

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