

如果您无法下载资料,请参考说明:
1、部分资料下载需要金币,请确保您的账户上有足够的金币
2、已购买过的文档,再次下载不重复扣费
3、资料包下载后请先用软件解压,在使用对应软件打开
一种基于激光测距的能量探测电路设计 Abstract Laserrangingisanimportantmethodformeasuringdistancesandiswidelyusedinvariousfields.Inordertoimprovetheaccuracyandstabilityoflaserranging,anewenergydetectioncircuitbasedonlaserrangingisproposedinthispaper.Thiscircuitcanaccuratelydetecttheenergyofthelasersignalandoutputastablevoltagesignal.Thedesign,simulation,andexperimentalresultsofthiscircuitarepresentedindetail.Theresultsshowthatthecircuithasgoodlinearityandstabilityandcanaccuratelydetecttheenergyofthelasersignal. Keywords:laserranging,energydetectioncircuit,voltagesignal,linearity,stability. Introduction Laserrangingisadistancemeasuringtechniquethatuseslaserlighttodeterminethedistancebetweentheobserverandthetarget.Laserranginghasmanyadvantages,suchashighaccuracy,highresolution,andhighspeed.Therefore,itiswidelyusedinvariousfields,suchassurveying,geodesy,aerospace,andmilitaryapplications.Inlaserrangingsystems,thelaserenergyplaysacriticalroleindeterminingtheaccuracyandstabilityofthemeasurements.Therefore,accuratedetectionofthelaserenergyisofgreatimportance. Thetraditionalmethodfordetectinglaserenergyisbasedonaphotoelectricdetector.Thephotoelectricdetectorconvertsthelaserlightintoanelectricalsignal,whichisthenamplifiedandprocessed.However,thismethodhassomedrawbacks,suchashighnoise,limitedbandwidth,andlimiteddynamicrange.Toovercometheselimitations,anewenergydetectioncircuitbasedonlaserrangingisproposedinthispaper. Designoftheenergydetectioncircuit Theenergydetectioncircuitconsistsofaphotodiode,atransimpedanceamplifier,anintegrator,acomparator,andanoutputstage,asshowninFigure1. Thephotodiodeisusedtoconvertthelaserlightintoaphotocurrent,whichisthenamplifiedbythetransimpedanceamplifier.Theoutputofthetransimpedanceamplifieristhenintegratedtoobtaintheenergyofthelasersignal.Theintegratorisfollowedbyacomparator,whichcomparestheenergysignalwithareferencevoltage.Thecomparatoroutputtriggerstheoutputstage,whichprovidesthefinalvoltagesignal. Simulationresults TheenergydetectioncircuitwassimulatedusingLT

快乐****蜜蜂
实名认证
内容提供者


最近下载