$B35MW(B$B!$(B
$B@bL@(B$B!$(B
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$B!!!!(B
$B!J(B $B"-(B x $B$O!$(Bx $B$NJ?6QCM$rI=$9!%(B
$B5-9f!'(B x $B!K(B
| $B7W;;<0(B |
$BJ?6Q(B x |
$BHO0O(B R |
$B?dDjCM(B |
$BL>>N(B |
| UCL = |
x + A2 R |
D4 R |
$B"b(B $B&L(B + 3$B&R(B |
$B>eJ}4IM}8B3&(B (Upper Control Limit) |
| CL = |
x |
R |
$B"b(B $B&L(B |
$BCf?4@~(B (Center Line) |
| LCL = |
x − A2 R |
D3 R |
$B"b(B $B&L(B − 3$B&R(B |
$B2
|
$B4IM}8B3&$r7W;;$9$k$?$a$N78?t(B (JIS Z 9020-2 $BI=(B2)
| n |
A2 |
D4 |
D3 |
| 2 |
1.880 |
3.267 |
-- |
| 3 |
1.023 |
2.575 |
-- |
| 4 |
0.729 |
2.282 |
-- |
| 5 |
0.577 |
2.114 |
-- |
| 6 |
0.483 |
2.004 |
-- |
| 7 |
0.419 |
1.924 |
0.076 |
| $BLdBj#1!'(B |
$B4IM}?^$r:n@.$9$kL\E*$O2?$G$9$+!%(B
$B4IM}?^$r:n@.$9$kL\E*$O!$@=B$9)Dx$,E}7WE*$J4IM}>uBV$K$"$k$+$I$&$+$rH=CG$7!$0BDj$J>uBV$r0];}$9$k$3$H$K$"$k!%(B
$B4IM}?^$K$h$C$F!$!JC/$G$b!K9)Dx$N0[>o$rAa4|$KH/8+$9$k$3$H$,$G$-$k!%(B
|
| $BLdBj#2!'(B |
$BI=$N6uMs$rKd$a$F!$Cf?4@~(B (CL) $B$NCM$r5a$a$J$5$$!%(B
| k |
$B%G!<%?72$NBg$-$5(B n=3 |
$BJ?6Q(B x |
$BHO0O(B R |
| x1 |
x2 |
x3 |
| 1 |
7.19 |
7.18 |
7.18 |
7.183 |
0.01 |
| 2 |
7.22 |
7.17 |
7.22 |
7.203 |
0.05 |
| 3 |
7.19 |
7.14 |
7.21 |
7.180 |
0.07 |
| 4 |
7.14 |
7.12 |
7.17 |
7.143 |
0.05 |
| 5 |
7.21 |
7.17 |
7.19 |
7.190 |
0.04 |
| $BK\Ev$O(B k$B!f(B20 |
$BJ?6Q(B |
7.180 |
0.044 |
| $BCf?4@~$N?dDjCM(B |
x$B",(B (CL) $B",(BR |
|
| $BLdBj#3!'(B |
x-R $B4IM}?^MQ$N78?tI=$rMQ$$$F!$LdBj#2$N7k2L$+$i(B x $B$H(B R $B$=$l$>$l$N(B UCL, LCL $B$NCM$r5a$a!$(Bx-R $B4IM}?^(B$B!J(BUCL, CL, LCL $B$H@^$l@~%0%i%U!K(B$B$rIA$-$J$5$$!%(B
|
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x $B$K$D$$$F!J(Bn=3 $B$N$H$-!K!$(B
|
|
R $B$K$D$$$F!J(Bn=3 $B$N$H$-!K!$(B
|
| |
A2 R = 1.023$B!_(B0.044 $B"b(B 0.045
- UCL = x + A2 R = 7.180 + 0.045 = 7.225
- CL = x = 7.180
- LCL = x − A2 R = 7.180 − 0.045 = 7.135
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|
- UCL = D4 R = 2.575$B!_(B0.044 $B"b(B 0.113
- CL = R = 0.044
- LCL = D3 R = --$B!_(B0.044 = -- $B!J$J$7!K(B
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