一种研究电子天平蠕变特性的新方法

!#$#%&#’()(*+#,#-./0123.##43-.-/’#.0,’0/(*56#/’.(10/7-6-1/#200030AbstractThenewmethodofresearchingthecreepcharacteristicofelectronicbalanceisstated.Withthismethodonseveralweighingpointsthecreepvaryingcurveisobtainedbyusingleastsquaremethodthenontheotherweighingpointsthecreepvaryingcurveisobtainedwithpiecewiselin-earinterpolation.Throughexperimentsitisproventhatthismethodissimpleandeffective.KeywordsCreepcharacteristicLeastsquaremethodLinearinterpolationWeighingtransducer0-11.1xiyiiE12mxyyEφxyEφxxiyiΦEφ0φ1φnyEφ*xyEφ*xxiyiφ*∈ΦΣmiE0φ*xi-yi2Eminφ∈ΦΣmiE0φxi-yi211φ*xIa0a1anEΣmiE0ΣnjE0ajφjxi-yi22a*0a*1a*nӘIӘakE0kE01n33ΣnjE0ajφjφkEyφkkE01n4φjφkEΣmiE0φjxiφkxiyφkEΣmiE0yiφkxi4a*0a*1a*nyEφ*x1.2fxn+1xiiE12nyiiE12nΦyEφxφjxi8526320053PROCESSAUTOMATIONINSTRUMENTATIONVol.26No.3March2005EyiiE012nfxxiφxfxfxxixi+1LixEyix-xi+1xi-xi+1+yi+1x-xixi+1-xix∈xixi+151.3nnntnn2500g1050g50min0~3min1s3~5min5s5~10min10s10~50min20s10011110~500g1325g325g11300g350g231132523006695⑥⑦⑧2.4①BSCSMapinfoMapXtremeWebWebBSCS②VPNVPNGIS③ASPASPASPGIS④SQLServer20003GIS1..19992..20033.GIS200212004-09-24196920005933505μVn31MarcRouffZakariaLakhdariMichelCotsaftisStanislasKonieczka.Dynamicalandthermalmodelingofcreepandrelaxationforforceandweightsensors.Mechatronics2003132..199733..199564..20012004-04-28198020026626320053PROCESSAUTOMATIONINSTRUMENTATIONVol.26No.3March2005