利用积分球对CCD线性和面均匀性的标定_杜传耀

·54·、2014346doi10.11823/j.issn.1674－5795.2014.06.14CCD100176CCDCharge-coupledDevice、CCDCCDCCD。CCDCCDCCD。CCD。CCDTB9B1674－5795201406－0054－04IntegratingSphereCalibrationofCCDLinearandSurfaceUniformityDUChuanyaoZHANGChunboMAJingjinLIDongCAIQingBeijingWeatherObservatoryBeijing100176ChinaAbstractIntegratingspherecalibrationoftheCCDCharge-coupledDevicemakestheuseofanintegratingspherelightsourceasithasagooduniformitystabilityandhighaccuracy.CCDisusedtocaptureimagesoftheintegratingspherelightsourcetheintegratingspherelightsourcebrightnessisconvertedintoimagegrayscale.ThentheparametersofCCDcalibrationisobtainedbyextractingthedataofgrayscaleima-ges.CCDlinearcalibrationtestresultsshowthatwhenthevalueoftheCCDshutterisfixedthelightbrightnesschangesinlinearrelationwithimagegrayandthelinearityissomewhatdifferentindifferentgrayscalevalueregionsaftertheconversion.Linearityofthemedianvalueregionisthebestlowvalueregionissecondandhighvalueregionistheworst.WithsomefixedlightintensityshutterchangesofCCDarelinearwithimagegrayscale.Theuniformitycalibrationtestresultsshowthatnon-uniformityofCCDphotoresponsedecreaseswithincreasingofshutterandimagegraybuteventuallybecomesamorestablevalue.KeywordsintegratingsphereCCDcalibrationimageprocessinglinearsurfaceuniformity2014－07－022014－08－22CCSF2014021985－。0CCD、CCD1－3。CCDCCD。4－5。CCD。CCDCCD。CCD。1IS2500－10001200mm400mm1615W99.8%350～2500nm。CCD12AD1392×1040、·55·0～65520。22.11。CCD25cm、1。20μs、180μs、500μs498～50115CCD0～65520122CCD、、。11/W·sr·m2－120μs180μs500μs1181814981809445523643874533948734472336123012779..8143802219118951338621221451131472516450115162855154104....62δ=ΔmaxImax－Imin1ΔmaxImaxImin。2180μs1800～25000500μs4455～501152。。2/μs200.001091800.000515000.00272·56·、2014346。33。3。10.00396CCDCCD。3/μs2021918061491601145624016750320220344002729548032553560377736404296272048118800532488805834532.2CCD4250μs4a4b4bCCD、CCD74CCDu=StdVi/V×100%2ViVStdVi。StdVi=∑Vi－V2n－1槡3ViVn。5。5CCD、CCD、。CCD、。、·57·531CCD。CCD。2CCDCCD、。1.CCDJ.200027460－63.2.CCDJ.201131380－82.3．CCDJ．200525111488－1492．4.CCDJ.2013284633－640.5.CCDJ.2006352294－297.6.CCDJ.2012324.39－44.7.CCDJ.2009334櫃櫃櫃櫃櫃櫃櫃櫃櫃櫃櫃櫃櫃櫃櫃櫃櫃櫃櫃櫃櫃櫃櫃櫃櫃櫃櫃櫃櫃櫃櫃櫃櫃櫃櫃櫃櫃櫃櫃櫃櫃櫃櫃櫃櫃櫃櫃櫃櫃櫃398－400.81、。4。、、、3-D。1.JJF1219－2009.S.2009.2PTB.ISO16063－41Methodsforthecalibrationofvibrationandshocktransducers－Part41CalibrationoflaservibromtersS.2011.3VONMartensH－J.Evaluationofuncertaintyinmeasure-mentsProblemsandtoolsJ.Opt.LaserEng.200238185－206.4.D.2012.5.J.19878302－319.6.M.2011308－338.