毕业设计（论文）英文翻译
姓学
名号0811122121理学院2008级光信1班
所在学院专业班级指导教师日期
2012年4月20日
f英文原文
15Experime
talSetupDuetothema
yco
ceptsa
dvariatio
si
volvedi
performi
gtheexperime
tsi
thisprojecta
dalsobecauseoftheiri
troductory
atureProject1willverylikelybethemosttimeco
sumi
gprojecti
thiskitThisprojectmayrequireasmuchas9hourstocompleteWerecomme
dthatyouperformtheexperime
tsi
twoormorelaboratorysessio
sForexamplepowera
dastigmaticdista
cecharacteristicsmaybeexami
edi
thefirstsessio
a
dthelasttwoexperime
tsfreque
cya
damplitudecharacteristicsmaybeperformedi
theseco
dsessio
ANoteofCautio
Alloftheabovecomme
tsrefertosi
glemodeoperatio
ofthelaserwhichisaveryfragiledevicewithrespecttoreflectio
sa
doperati
gpoi
tO
emuste
surethatbeforeperformi
gmeasureme
tsthelaserisi
deedoperati
gsi
glemodeThisca
berealizedifasi
glebroadfri
gepatter
isobtai
edorequivale
tlyagoodsi
usoidaloutputisobtai
edfromtheMichelso
i
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ceissca
edIfthisis
otthecasethelaserisprobablyoperati
gmultimodea
ditscurre
tshouldbeadjustedIfsi
glemodeoperatio
ca
otbeachievedbyadjusti
gthecurre
tthe
reflectio
smaybedrivi
gthelasermultimodei
whichcasethesetupshouldbeadjustedtomi
imizereflectio
sIfstill
otoperati
gsi
glemodethelaserdiodemayhavebee
damageda
dmay
eedtobereplacedWar
i
gThelasersprovidedi
thisprojectkitemiti
visibleradiatio
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damagethehuma
eyeItisesse
tialthatyouavoiddirecteyeexposuretothelaserbeamWerecomme
dtheuseofprotectiveeyeweardesig
edforuseatthelaserwavele
gthof780
mReadtheSafetysectio
si
theLaserDiodeDriverOperati
gMa
uala
di
thelaserdiodesectio
ofCompo
e
tHa
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ga
dAssemblyAppe
dixAbeforeproceedi
g151Semico
ductorDiodeLaserPowerCharacteristics1Assemblethelasermou
tassemblyLMAIa
dco
ectthelasertoitspowersupplyWewillfirstcollimatethelightbeamCo
ectthelaserbeamtoavideomo
itora
dimagethelaserbeamo
awhitesheetofpaperheldabouttwotote
ce
timetersfromthelaserassemblySlowlyi
creasethedrivecurre
ttothelasera
dobservethespoto
thewhitecardThethresholddrivecurre
trati
gofthelaseris
1
fsuppliedwitheachlaserI
creasethecurre
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fraredimagerori
fraredse
sorcardobservethespoto
thecarda
dadjustthecollimatorle
spositio
i
thelaserassemblyLMAItoobtai
abrightspoto
thecardMovethecardtoabout30to60ce
timetersfromthele
sa
dadjustthele
spositio
relativetothelasertoobtai
aspotwheresizedoes
otvarystro
glywiththepositio
ofthewhitr