温升测试不确定度评定

UncertaintyEvaluationonHeatingTest,,361004ShiYuan,HuangHong-sheng(ChinaQualitymarkCertificationGroup(Xiamen)Co.,Ltd.,FujianXiamen361004)。TN06B1003-0107(2010)11-0078-03Abstract:Thisarticleintroducestheanalysismethodofuncertaintyevaluationthrougharepresentativeexample,whichisheatingtestoncomponentforcolortelevisionbroadcastingreceivers.Keywords:heatingtest;uncertainty;colortelevisionbroadcastingreceiverCLCnumber:TN06Documentcode:BArticleID:1003-0107(2010)11-0078-031、。。GB8898、GB4943IECIEC6500ULUL6500、UL60950。。。、、、、、、、、、A、B、、。PROCOS-。、。2PROCOS-。4n。n=101。tm4tbtmti。1(℃)3。(1)。(1)———。———。———。n12345678910tm30.630.630.630.530.530.530.530.530.430.4tb17.017.117.017.017.117.017.117.017.017.0ti13.613.513.513.513.413.513.413.513.413.4tm30.51tm0.074tb17.03tb0.048ti13．47eaturedLabF78201011(2)———。。———、。。。———。4tm,tbti=tm-tb(1)tm、tbc1、c2:u2c(ti)=∑[f/xi]2u2(xi)(2)u2c=u2c(ti)=ki=1Σc2iu2i(3),c1=ti/tm=1c2=t25/tb=-15A(10)ΔtΔt=1nni=1ΣΔti=13.47℃(4)A(3)tm、tbu2CA(Δt)=[c1u(tm)]2+[c2u(tb)]2=0.000666(5)uCA(Δt)=0.026℃(6)vCA=u4CA2i=1Σc4iu4ivi=16.78≈17(7)vi=n-1=9(8)6BBu1,u2tm,tbB。(1)tmB———0.5。0.5℃k=3姨90%,ub11=0.5/3姨=0.29℃(9)rb11=1/2×(10/100)-2=50(10)———0.1℃0.1℃。0.1,0.05。0.05/3姨=0.03℃。10Bub12=(1/2)×0.1/3姨9姨=0.01℃(11)90%rb12=1/2×(10/100)-2=50(12)———JJ±0.2%0－300℃(0.2/100)×300=0.6℃。90%ub13ub13=0.6/3姨=0.35℃(13)rb13=1/2×(10/100)-2=50(14)u1=u211+u212+u213姨=0.455℃(15)vleff=u143i=1Σc41ub1i4vi=u14u41150+u41250+u41350=97(16)(2)tbBtmBub21=0.29℃rb21=50ub22=0.01℃rb22=50ub23=0.35℃rb23=50。u2=u221+u222+u223姨=0.455℃(17)v2eff=u243i=1Σc42u4b2ivi=97(18)(3)B(3)u2cB(Δt)=∑ci2ui2=12×0.4552+(-1)2×0.4552=0.414℃(19)ucB=0.64℃(20)vCB=u42Ni=1Σc4iu4cbivi=u4cb(Δt)u4cb1v1eff+u4cb2v2eff=194(21)185792010117ABuc=u2cA+u2cB姨=0.0262+0.642姨=0.641℃(22)veff=uc4Ni=1Σc4iui4vi=uc4(ti)u4cAvcA+u4cBvcB=194(23)8P=95%kP=tP(veff)=t0.95(194)=1.99(24)U0.95=K0.95uC=1.99×0.641℃=1.28℃(25)91095%Veff=194。ti95%[12.19℃14.75℃]。10、、、、、。[1].[M].:,2000.[2].[M].:,2002.[3]PROCOS-.[4]PROCOS-.[5]JJF1059-1999.[S].。()。。EMI。()()。()。()。。5PCB。EMIEMI。[1]MarkI.Montrose.、[M].:,2004.7985