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首页> 外文期刊>International Journal of Production Research >The performance of the Shewhart-RZ control chart in the presence of measurement error
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The performance of the Shewhart-RZ control chart in the presence of measurement error

机译:存在测量误差时Shewhart-RZ控制图的性能

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摘要

Recent literature about quality control has investigated the continuous surveillance of the ratio of two normal random variables under the assumption of no measurement error. However, in practice, measurement errors always exist in quality control applications and may considerably affect the performance of control charts. In this paper, the performance of the Shewhart-RZ control chart is investigated in the presence of a measurement error and modelled by a linear covariate error model. Several figures and tables are generated and commented to show the statistical performance of the Shewhart-RZ control chart for different sources of the measurement error. Two examples illustrate the use of this chart on a quality control problem simulated from the food industry and a real industrial case from a plant treating batteries for recyclement.
机译:关于质量控制的最新文献研究了在没有测量误差的情况下对两个正常随机变量之比的连续监视。但是,实际上,测量误差始终存在于质量控制应用程序中,并且可能会严重影响控制图的性能。在本文中,在存在测量误差的情况下研究了Shewhart-RZ控制图的性能,并通过线性协变量误差模型对其进行了建模。生成并注释了一些图形和表格,以显示Shewhart-RZ控制图针对不同测量误差源的统计性能。有两个示例说明了此图表在食品行业模拟的质量控制问题和工厂处理电池可回收利用的实际工业案例中的用法。

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