控制图的系数和公式表

1、控制图的系数和公式表子组容量XR图*XS图*均值X图极差R图均值X图标准差S图计算控制限用的系数标准差估计值的除数计算控制限用的系数计算控制限用的系数标准差估计值的除数计算控制限用的系数nA2d2D3D4A3C4B3B421.881.1283.2672.6590.79793.26731.0231.6932.5741.9540.88622.56840.7292.0592.2821.6280.92132.26650.5772.3262.1141.4270.942.08960.4832.5342.0041.2870.95150.031.9770.1492.7040.0761.9241.1820.95

2、940.1181.88280.3732.8470.1361.8641.0990.9650.1851.81590.3372.970.1841.8161.0320.96930.2391.761100.3083.0780.2231.7770.9750.97270.2841.716110.2853.1730.2561.7440.9270.97540.3211.679120.2663.2580.2831.7170.8860.97760.3541.646130.2493.3360.3071.6930.850.97940.3821.618140.2353.4070.3281.6720.8170.9810.4

3、061.594150.2233.4720.3471.6530.7890.98230.4281.572160.2123.5320.3631.6370.7630.98350.4481.552170.2033.5880.7381.6220.7390.98450.4661.534180.1943.640.3911.6080.7180.98540.4821.518190.1873.6890.4031.5970.6980.98620.4971.503200.183.7350.4151.5850.680.98690.511.49210.1733.7780.4251.5750.6630.98760.5231.

4、477220.1673.8190.4341.5660.6470.98820.5341.466230.1623.8580.4431.5570.6330.98870.5451.455240.1573.8950.4511.5480.6190.98920.5551.445250.1533.9310.4591.5410.6060.98960.5651.435控制限计算UCLX/LCLX=XA2RUCLX/LCLX=XA3SUCLR=D4RUCLS=B4SLCLR=D3RLCLS=B3S=R/d2=S/C4*摘自ASTMSTP15D，数据和控制图分析形式手册1976年版，第134136页。ASTM版权所有

5、，经允许后复制（1916Race +Street，Philadelphia，Pennsylvania19103）控制图的系数和公式表子组容量中位数图*单值图*中位数X图极差R图单位X图极差R图计算控制限用的系数标准差估计值的除数计算控制限用的系数计算控制限用的系数标准差估计值的除数计算控制限用的系数nA2d2D3D4E2d2D3D421.881.1283.2672.661.1283.26731.1871.6932.5741.7721.6962.57440.7962.0592.2821.4572.0592.28250.6912.3262.1141.292.3262.11460.5482.5342

6、.0041.1842.5342.00470.5082.7040.0761.9241.1092.7040.0761.92480.4332.8470.1361.8641.0542.8470.1361.86490.4122.970.1841.8161.012.970.1841.816100.3623.0780.2231.7770.9753.0780.2231.777控制限计算UCLX/LCLX=XA2RUCLX/LCLX=XE2RUCLR=D4RUCLS=D4RLCLR=D3RLCLS=D3R=R/d2=S/C4* 摘自ASTMSTP15D，数据和控制图分析形式手册1976年版，第134136页。ASTM版权所有，经允许后复制（1916Race Street，Philadelphia，Pennsylvania 19103）* A系数取自ASTMST