...另一方面,如果某一制程同时被不可归咎与可归咎两个变异因素所影响,则该制程是不稳定的,此时产品品质特性的变异将无法以统计方法来预测。SPC图(SPC Charts)正是为了判断制程是否稳定,或是区分制程究竟是被不可归咎变异因素或可归咎变异因素所影响的一种统计技术。
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Choosing SPC Charts 选择统计过程控制图
All standard SPC charts are available and may be generated on screen or to the printer.
所有标准的统计图表均可产生到屏幕或打印输出。
Contrast to these common SPC systems, it can not only detect the unnatural process behavior on line, but can also learn and identify these unnatural patterns on control charts at the same time.
与一般SPC系统相比,本系统不仅可以在线检测过程异常,对各种控制图异常模式还具有实时学习、在线识别功能。
As we know that the average run length (ARL) is an extensively used measure in statistical process control (SPC) for evaluating and comparing the detection performance of various control charts.
平均运行长度(ARL)被广泛地用在统计过程控制(SPC)中,人们常用它来评估和比较各种各样控制图的监测效果。
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