Txhawm rau kom tau txais txiaj ntsig zoo rau kev rov ua dua, koj yuav tsum tuaj yeem ua cov txheej txheem tib yam ntau zaus. Sum suav cov squared sib txawv thiab faib los ntawm tus naj npawb ntawm cov txiaj ntsig rho tawm ib, tom qab ntawd muab lub hauv paus square ntawm qhov quotient.
Koj suav li cas rov ua tau thiab rov ua dua?
Kauj Ruam 8: xam Gage R&R thiab txhais cov txiaj ntsig
- Gage R&R=σ2Repeatability + σ2Technician
- Khoom Variation (Reliability)=σ2Repeatability
- Technician Variation (Reproducibility)=σ2Technician + σ2 TechnicianxPart
- Part to Part=σ2Part
Yuav ua li cas koj xam qhov rov ua tsis tau qhov tseeb?
Yog tias peb ua ntau qhov kev ntsuas rov qab nyob rau hauv tib lub sijhawm, tus qauv sib txawv ntawm qhov tau txais qhov tseem ceeb qhia qhov tsis paub tseeb vim qhov tsis zoo tagnrho rov ua dua (feem ntau hu ua repeatability standard uncertainty) ntawm qhov ntsuas: u (V, REP)=s(V)
Dab tsi yog qhov rov ua tau zoo?
rov ua dua me ntsis. r ntawm 0.2 thiab 0.4 tsawg repeatability. r ntawm 0.4 thiab 0.7 nruab nrab repeatability. r nruab nrab ntawm 0.7 thiab 0.9 siab rov ua dua. r ntau dua 0.9.
Yuav ua li cas rov ua piv txwv yog dab tsi?
Kev rov ua dua lossis kev sim- rov ntsuas kev ntseeg siab yog qhov ze ntawm qhov kev pom zoo ntawm cov txiaj ntsig ntawm kev ntsuas ua tiav ntawm tib qhov kev ntsuas, thaum ua raws li tib yam kev ntsuas. … Test–retest variability yog xyaum siv, piv txwv li, nyob rau hauv kev saib xyuas ntawm tej yam kev mob.
