大量程光纖絕對(duì)測(cè)距儀研究.pdf

1、天津大學(xué)博士學(xué)位論文大量程光纖絕對(duì)測(cè)距儀研究姓名：鐘明申請(qǐng)學(xué)位級(jí)別：博士專業(yè)：測(cè)試計(jì)量技術(shù)及儀器指導(dǎo)教師：葉聲華20040701ABSTRACTThetechnologyofnoncontactlargerangeandhighaccuracyabsolutedistancemeasurementplaysanimportantroleinnowadaymeasumenttechnologywithabrightfutureinappl

2、ication.Althoughtheabsolutedistancemeasurementtechnologybasedontheprincipleofopticalfiberquasiwhitelightinterferometrydevelopsveryraplidlythetechnologyconceringlargerangedistancemeasumenthasnotbeenreported.Thesubject“l(fā)ar

3、gerangeopticalfiberquasiwhitelightabsoluteinterferometrydistancemeasurementtechnology“isfinancedbyNationalNaturalScienceFund(ProjectNo.50005014)whichdevelopsahighaccuracyportableabsolutedistancemeasurementtechnologybased

4、ontheopticalfiberquasiwhitelightinterferometry.Thelargerangedistancemeasurementabove10meterscanberealizedbyuseoftheshortscanningguide.Thethesismainlydiscussesaboutcontentsdescribedasfollows:l.Thetriplemeasuringrangemulti

5、plicationsystemisdesignedandtheopticalswitchdeviceisintroducedtotheopticalfiberinterferometerfieldforthefirsttime.Becauseoftriplerangemultiplicationoptimaldesignthemeasuringrangeofopticalfiberabsolutedistancemeasurementi

6、nstrumentisenhancedabove10meterswhichmeetsthedemandoftheshortscanningguideandlargerangemeasurementindeed.2.Thefiberselfcalibrationtechnologyinthetriplemeasuringrangemultiplicationsystemisdevelopedwhichfinishestheselfcali

7、brationoftheoriginalopticaldifferenceoftheopticalfibergroupsbyusingthesystemscanninginterferometer.Thesystemusestheselfscanninginterferometeropticalwavelengthtofulfillthetransmissionofthelengthreferenceandtheantiinterfer

8、encecapabilityofsystemisenhancedgreatly.3.Theopticalfiberquasiwhitelightinterferencesignalmodelundertheaffluxofsemiconductorlasercurrentisestablishedandtheinfluenceoncoherentlengthandopticalfiberinterferometrylocatingmod