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1、科技英语课程论文（报告、案例分析）院系物理与电子工程学院专业电子信息工程班级学生姓名学号任课教师2013年12月26日ApplicationofPhotoelectricEncoderinGravimeterAbstract：Thispaperissayinghowtoimprovethereaderofspring-gravimeterwithphoto-electricencoderthatconvertslinearitydisplacementofspringingravimeterintoan・gled
2、isplacementandoutputselectricpulsestoacounte匚Usingasinglechipmicro-computerascounterandcontrollerofthesystem,itmakesthegravimeterhavenewfunctionthatcanauto-write,auto-saveandtransmitdata.canadvancetheworkefficiency・Keywords:photoelectric-encoder;singlechipcon
3、troller;gravimeter;counterEncoderwithhighprecision,highresolutionandhighreliabilityandiswidelyusedinallkindsofdisplacementmeasurement.Accordingtothestructureform,canbedividedintolinearandrotaryencoder;Theformersuchasgratingrulercanbeusedinautomaticcontrolline
4、displacementmeasurementsystemofmachinetools.Rotaryencoderisusedforangulardisplacementofthemosteffectiveandmostdirectdigitalsensors,itiswidelyusedtomeasuretherotationalspeed,inmostofthearticulatedrobotuseditastheAnglesensor,afterasetofmechanicaldevicetransfo『m
5、ationcanalsobeusedtomeasurelineardisplacement.Herethroughtheretrofitschemeofagravitymeasurementinstrument,toillustratetheprincipleofthiskindofsensorandapplicationinmeasuringlineardisplacement.1GravityMeterGravitymetercanbedividedintotwotypes,herereferringtogr
6、avitymeterisusedtomeasurethegroundgeophysicalprospectingtwogravityaccelerationrelativedifferenceofahighprecisioninstrurne(gravitymeasurementunit1g.u=1murn/s2,theprecisionoftheinstrumentsgenerallycanreach0.3g.u).Gravitymeasuremeusedintheresearchofstructureofth
7、eearth,petroleumsurvey,theearthquakeprediction,geodesy,e【c.Thiskindofinstrumentaccordingtotheprincipleofdifferetherearedifferenttypes,amongthem,theextensiveuseofthefieldworkisakindofspringgravimeter.Itssmallvolume,lightweight,butoperationcompletelywhilereadin
8、gdatafromthemechanicalwheelcounterbyartificialreading,andartificialtranscriptioninnotebook,includingtime,locationofthenetwork(testpointlinenumber),readthenumber,e【c.Togobackinside,thereis
