非接触式转轴扭矩测量系统偏心误差的修正研究.pdf

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1、机床与液压Sep．2014HydromechatronicsEngineeringVo1．42No．18DOI：10．3969／j．issn．1001-3881．2014．18．015Researchonthecorrectionofeccentricerrorbasedonnon-contactshafttorquemeasurementsystemWen-junDENG，KunYANG，Bing—qingCHEN，Jing—feiXIAO。，Wei—gangZHENG。。SchoolofEnergyandPowerEngineering；ReliabilityEng

2、ineeringInstitute，SchoolofEnergyandPowerEngineering；EngineeringTrainingCenter，WuhanUniversityofTechnology，Wuhan430063，ChinaAbstract：Themaincontentoftheonlinemonitoringofoperationstatuesofshaftisthemeasure-mentofshafttorque．Forthemethodthattheshafttorqueisgo~enbythenon。contactmeasure‘ment

3、．theaccuracyformeasurementoftorsionaJangledeterminesthecorrectionofmeasurementresultforshafttorque．Inthispaper，theeccentricerroroforiginalsystemisanalyzed，andtheefectofeccentricinstallmentoftheencoderonthetimethatthephoto-electricsweepssectoriaIphotoelectriclightpassholeisalsoanalyzed．Th

4、enthespecificmathematicalexpressionofthetimeofsetthatthelightpasstheopticalape~ureisgivenbygeometricanalysisandmotionde‘composition．Andtheeccentricerrorofthemeasurementsystemiseliminatedaccordingtothea—nalysis．TheresearchofthispaperwillprovidetheoreticalguidanceforthedesignoftorqMemeasur

5、inginstrument，anditishelpfultoimprovemeasurementaccuracyofthiskindofdevices．Keywords：Sensortechnology，Non-contactphoto—electrical，Torquemonitoring，Eccentricity，Erroranalysis，CorrectionInthesystemthattakesshaftastransmissiontact[3—4]．Inthispaper，theauthormainlydis—parts．theworkingconditio

6、nofsh撕willdeterminecussedthemeasuringmethodsbasedonthephotoe—thenormaloperationofthewholesystem．Thetorquelectricnon—contactrotortorque．Photoelectricnon．isoneofthemostusefulparametersassociatedwithcontactrotortorquemeasurementsystemdeterminestheshaftworkingcondition，anditisalsooneofthethe

7、rotatingshafttorqueusingtwoeneodersfixedonmostimportantperformanceparametersofpowerplanttherotatingshaftwiththeemergenceoftheshafttor-andthehost[1—2]．Bymeasuringtheshafttorque，sionandtorsionangle．Themeasurementsystemcanpeoplecanunderstandanddetectthepowerplant，completenon