简介：Thepaperapproachestheproblemofthecommandfunctionsofgalvanometer-basedscanners(GS)thatarenecessarytoproducethelinearplusparabolicscanningfunctionoftheGS,whichwehaveprovedpreviouslytoproducethehighestpossibledutycycle(i.e.,timeefficiency)ofthedevice.Wehavecompletedthistheoreticalaspect(whichcontradictedwhathasbeenstatedpreviouslyintheliterature,whereithasbeenconsideredthatthelinearplussinusoidalscanningfunctionwasthebest)withtheexperimentalstudyofthemostusedscanningfunctionsoftheGSs(sawtooth,sinusoidalandtriangular),withapplicationsinbiomedicalimaging,inparticularinopticalcoherencetomography,demonstratingthatthetriangularfunctionisalwaysthebestonetobeapplied,frombothanopticalandamechanicalpointofview.Inthepresentstudytheinputvoltage/commandfunctionwhichshouldbeappliedtotheGStoproducethedesiredtriangularscanningfunction(withcontrollednon-linearityforthefastestpossiblestop-and-turnportions)wasdeterminedanalytically,inrelationshipwiththeactivetorquethatdrivesthedevice.Thiscommandfunctionisanalyzedwithregardtothespecific,respectivelyrequiredparametersoftheGS:naturalfrequencyanddampingfactor,respectivelyscanspeedandamplitude.ThemodelinginanopenloopcontrolstructureoftheGSisfinallydiscussedasatrade-offbetweenusingthehighestpossibledutycycleandminimizingthemaximumpeaksoftheinputvoltage.