How to Calculate Cp Values To calculate the Cp index, you need to know the upper and lower specification limits (USL and LSL), as well as the standard deviation. You can then use the following formula: Cp = (USL-LSL) / 6 x SD A Cp of one means that your process matches the width...
Once selected the quality specification and the appropriate QC material a possible way to determine the in control performance characteristics of the method is to calculate the measurement uncertainty of the results produced. The introduction of the concept of measurement uncertainty [4] led us to con...
否则,σ2adj,LT是唯一解决方案: 仅针对变异膨胀因子,或者同时针对均值移位因子和变异膨胀因子 一个间隙规格或无间隙规格 μPool= 0 两个间隙规格 μPool= 0 σ2Pool= σ2adj,LT– σ2Gap,LT* 注意 σ2Pool= 0(如果 T=LSL 或 T=USL...
The histogram for data values 1 to 20 is shown in figure 8; the location and width of the natural process limits (of 9.6 and 10.35) relative to the specifications (of 9.7 to 10.3) help to visualize why the capability statistics are lower than 1. This state of affairs provides pretty goo...
LSL 元件规格下限 如果未指定,Minitab 将使用所示的长期元件基准 Z 值和长期元件标准差进行计算。 名义值 元件名义值 如果未指定,Minitab 将使用均值。 名义值 = Ti USL 元件规格上限 如果未指定,Minitab 将使用所示的长期元件基准 Z 值和长期元件标准差进行计算...
OK, so you have your customer’s specification limits. To arrive at the Cpk, you will use the following abbreviations. Here is the equation: Determine your mean minus your lower specification limit, or LSL. Then calculate your upper specification limit, or USL, minus your mean. Divide both ...
Z.LSL(ST) Z.USL(ST) Z.BenchGap,ST 表示法 有关对应于长期统计量的计算,请参见针对计算间隙空余的间隙分布计算(长期统计量)。 μGap,ST 分配前的短期间隙均值 σGap,ST 分配前的短期间隙标准差 Z.LSL(ST) 如果仅给定了装配...
σ2Pool = 0(如果 T=LSL 或 T=USL 和 Zp=0) * 其中,如果,则 否则,σ2adj,LT 是唯一解决方案:表示法 项说明 Ci 第i 个元件的直径校正因子 Di 第i 个元件的漂移因子 Ni 第i 个元件的复杂度 Si 第i 个元件的移位因子 σi 第i...
Z.LSL(ST) Z.USL(ST) Z.BenchGap,ST 表示法有关对应于长期统计量的计算,请参见针对计算间隙空余的间隙分布计算(长期统计量)。 μGap,ST 分配前的短期间隙均值σGap,ST 分配前的短期间隙标准差Z.LSL(ST) 如果仅给定了装配件间...