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測(cè)量系統(tǒng)線性分析表（圖示及計(jì)算）,,,,,,,,,,,,,,,,,,,

量具名稱,,,,,,,測(cè)量特性,,,,,,,,測(cè)量人員,,,,

量具編號(hào),,,,,,,規(guī)范,,,,,,,,測(cè)量日期,,,,

量具量程,,,,,,,抽樣頻率,,,,,,,g=,5,m=,12,gm=,60

零件i,,1,,2,,3,,4,,5,,,∑xi,,30.00,∑yi,,-0.2667,

基準(zhǔn)值xi,,2.00,"偏倚值

Yij",4.00,"偏倚值

Yij",6.00,"偏倚值

Yij",8.00,"偏倚值

Yij",10.00,"偏倚值

Yij",,∑xiyi,,-6.8667,∑xi2,,220.00,

"測(cè)

量

值

xij",1,2.70,0.70,5.10,1.10,5.80,-0.20,7.60,-0.40,9.10,-0.90,,(∑xi)2,,900,∑∑(xi-xi)2,,480.00,

,2,2.50,0.50,3.90,-0.10,5.70,-0.30,7.70,-0.30,9.30,-0.70,,y,-0.053333,,x,,6.00,

,3,2.40,0.40,4.20,0.20,5.90,-0.10,7.80,-0.20,9.50,-0.50,,∑y2,0.723333,,"t58,0.975",,2.00172,

,4,2.50,0.50,5.00,1.00,5.90,-0.10,7.70,-0.30,9.30,-0.70,,a=,∑xiyi-(∑xi∑∑yij)/gm,,,,-0.13167,

,5,2.70,0.70,3.80,-0.20,6.00,0.00,7.80,-0.20,9.40,-0.60,,,,,,,,

,6,2.30,0.30,3.90,-0.10,6.10,0.10,7.80,-0.20,9.50,-0.50,,,∑xi2-∑(∑xi)2/gm,,,,,

,7,2.50,0.50,3.90,-0.10,6.00,0.00,7.80,-0.20,9.50,-0.50,,,,,,,,

,8,2.50,0.50,3.90,-0.10,6.10,0.10,7.70,-0.30,9.50,-0.50,,b=,y-ax,,,,0.7367,

,9,2.40,0.40,3.90,-0.10,6.40,0.40,7.80,-0.20,9.60,-0.40,,s=,∑∑y2ij-b∑∑yij-a∑∑xiyij,,,,0.239540,

,10,2.40,0.40,4.00,0.00,6.30,0.30,7.50,-0.50,9.20,-0.80,,,gm-2,,,,,

,11,2.60,0.60,4.10,0.10,6.00,0.00,7.60,-0.40,9.30,-0.70,,置信帶=,b+ax0±,1/gm+,(x0-xi)2,,,

,12,2.40,0.40,3.80,-0.20,6.10,0.10,7.70,-0.30,9.40,-0.60,,,,,∑∑(xi-xi)2,,,

(xj-x)2,,147.87,,44.39,,0.43,,35.13,,137.60,,,,,,,,,

測(cè)量均值,,2.4917,,4.1250,,6.0250,,7.7083,,9.3833,,,95%置信區(qū)間,,基準(zhǔn)值,,,,

偏倚均值yi,,0.4917,,0.1250,,0.0250,,-0.2917,,-0.6167,,,,,2.0000,4.0000,6.0000,8.0000,10.0000

極差,,0.40,,1.30,,0.70,,0.30,,0.50,,,上限,,0.5806,0.2858,0.0086,-0.2409,-0.4728

xiyi,,0.9833,,0.5000,,0.1500,,-2.3333,,-6.1667,,,"回歸直線

=b+ax0",,0.4733,0.2100,-0.0533,-0.3167,-0.5800

y2i,,3.07,,2.39,,0.43,,1.13,,4.80,,,下限,,0.3661,0.1342,-0.1152,-0.3925,-0.6872

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圖示分析,,,,,,,,,,,,,數(shù)值分析,,,,,,

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,,,,,,,,,,,,,ta=,a,,,-12.04256,,

,,,,,,,,,,,,,,s,,,,,

,,,,,,,,,,,,,,∑∑(xi-xi)2,,,,,

,,,,,,,,,,,,,tb=,b,,,10.158,,

,,,,,,,,,,,,,,1/gm+,(xi)2,,,,

,,,,,,,,,,,,,,,∑∑(xi-xi)2,,,,

,,,,,,,,,,,,,"判定

結(jié)果","□︱ta︱≤tgm-2,1-a/2,H0:a=0,線性可接受；

□︱ta︱＞tgm-2,1-a/2,H0:a≠0,線性不可接受。

□︱tb︱≤tgm-2,1-a/2,H0:b=0,偏倚可接受；

□︱tb︱＞tgm-2,1-a/2,H0:b≠0,偏倚不可接受。",,,,,

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,,,,,,,,,,,,,"改善對(duì)策：

當(dāng)線性不可接受（a≠0）時(shí)，不用再進(jìn)行︱tb︱與

tgm-2,1-a/2大小的分析，找出原因通過(guò)硬體修正、軟件修正或者兩種修正方法進(jìn)行校準(zhǔn)，使其達(dá)到零偏倚，如果不能達(dá)到零偏倚，只要證明仍舊穩(wěn)定，可以用于產(chǎn)品/過(guò)程的控制，不用對(duì)其進(jìn)行

線性分析。",,,,,,

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