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HOW TO TYPE TEST THE COEFFICIENT OF VARIATION OF AN INDICATION

机译:如何测试指示变化的系数

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摘要

Type tests are common methods to verify whether an instrument is suitable for a specific measuring task or not. In several countries, the type test is legally required and if failed the respective instrument cannot be used for legal measurements and, therefore, will not be bought by many customers. One important quantity is the coefficient of variation of the indication, which shall not exceed a given acceptance limit. In order to keep the amount of required measurements manageable, the coefficient of variation is estimated at one or a few test conditions from a limited number of measurements. The current test procedure requires that the measured coefficients of variation shall not exceed the respective acceptance limit at all test conditions. This paper demonstrates that the current test procedure has the unwanted tendency to reject instruments which should pass the test. Based on this realisation, the authors modified the test procedure to achieve proper results. The changes do not require further measurements, only the data evaluation has been optimised.
机译:型式测试是验证仪器是否适合特定测量任务的常用方法。在一些国家/地区,法律要求进行类型测试,如果测试失败,则相应的仪器将无法用于合法的测量,因此,许多客户不会购买。一个重要的量是指示的变化系数,其不得超过给定的接受极限。为了使所需测量的数量保持可管理性,变异系数是在一种或几种测试条件下从有限数量的测量中估算得出的。当前的测试程序要求在所有测试条件下测得的变化系数均不得超过相应的验收极限。本文证明,当前的测试程序具有拒绝通过测试的仪器的不良趋势。基于这种认识,作者修改了测试程序以取得适当的结果。所做的更改不需要进一步的测量,仅对数据评估进行了优化。

著录项

  • 来源
    《Radiation Protection Dosimetry》 |2007年第1期|p.21-31|共11页
  • 作者

    J. Brunzendorf; R. Behrens;

  • 作者单位

    Physikalisch-Technische Bundesanstalt, Bundesallee 100, 38116 Braunschweig, Germany;

  • 收录信息 美国《科学引文索引》(SCI);美国《化学文摘》(CA);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 计量学;
  • 关键词

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