Optical pass txij nkawm piv ntawmhlau halide nuv ntses teebyog ib qho tseem ceeb ntawm kev ntsuas ntawm hlau halide nuv ntses teeb. Nrog rau kev xav tau ntawm cov hlau halide nuv ntses teeb nyob rau hauv Suav teb thiab kev txhim kho tas mus li ntawm cov txheej txheem, qhov kho qhov muag hla kev txij nkawm piv ntawm hlau halide nuv ntses teeb tau dhau los ua qhov tseem ceeb. Daim ntawv no tsom mus rau cov txheej txheem thiab kev coj ua ntawm nws qhov kev tsom xam thiab kev tshawb fawb tob.
Kev saib xyuas ntawm ib qho hlau halide nuv ntses lub teeb hla
Filling series hlau halide, sib txawv zog, sib txawv ntawm cov qauv ntawm cov hlau halide teeb lub optic tswj tus nqi nkhaus yog txawv, xws li feem ntau ntawm cov hlau halide teeb nuv ntses thaum pib ntawm lub teeb ignition (ob puas teev) ob peb ntawm teev mus rau ︿ flux poob sai dua, txuas ntxiv teeb lub luminous flux poob zoo dua. Txawm li cas los xij, kuj tseem muaj qee qhov hlau halide nuv ntses teeb nrog lub teeb sib txawv ntawm kev saib xyuas nkhaus, thiab qhov poob qis ntawm lub teeb flux ntawm qhov pib ignition point yog qhov pib zoo ib yam li qhov tom qab ignition point. Qhov sib txawv saum toj no feem ntau yog vim qhov zoo sib xws tab sis sib txawv vim li cas rau qhov txo qis ntawm lub teeb flux nyob rau hauv thaum ntxov thiab lig lub sij hawm ntawm ignition point. Txhawm rau txhawm rau txheeb xyuas qhov ua rau lub teeb poob qis hauv qhov hluav taws xob ntawm cov hlau halide teeb, nws yog ib qho tsim nyog yuav tsum tau soj ntsuam cov txheej txheem ntawm lub teeb pom kev zoo nyob rau hauv qhov ntxov thiab lig burning point ntawm lub teeb, thiaj li yuav zoo txhim kho lub teeb hla kev txij nkawm. tus nqi ntawm cov teeb.
Ua ntej, lub mechanism ntawm flux poob ntawm qhov pib ignition point yog soj ntsuam. Piv txwv li, lub arc raj ntawm ib yamhlau halide nuv ntses teebsuav nrog: qhov loj thiab cov duab ntawm quartz npuas plhaub thiab electrode; Electrode ncua ntev; Txias kawg kub (xws li rwb thaiv tsev txheej loj thiab txheej thickness); Tom qab qhov sib piv thiab ntau npaum li cas ntawm cov khoom siv kub halogen thiab input arc zog yog txiav txim siab, qhov kev hloov ntawm optical transmittance yog txiav txim siab los ntawm: 1. Kev hloov ntawm optical transmittance ntawm quartz npuas plhaub. 2. Kev hloov ntawm electrode emission kev ua tau zoo (xws li cathode tej zaum poob). 3. Kev hloov pauv hauv atomic concentration thiab atomic faib ntawm luminous ntsiab (Na, Sc, Dy, Hg–, thiab lwm yam) nyob rau hauv arc hlab ntawm hlau halide teeb.
Txij li tag nrho atomic radiation siv nyob rau hauv lubunderwater hlau halide nuv ntses teebarc raj nyob ntawm qhov concentration ntawm cov atom zoo siab, nws cov lus qhia yog raws li nram no:
N¿=No(gk/g,)exp-(eVk/kT)·
Qhov twg N0 yog atomic concentration ntawm ntau yam luminous ntsiab. Vk yog lub zog muaj zog ntawm ntau yam luminescent ntsiab. T yog qhov kub thiab txias qhov twg cov atoms ntawm txhua lub caij. Txij li thaum muaj qhov kub thiab txias sib txawv ntawm cov ntsiab lus sib txawv hauv lub arc raj thaum lub teeb hlau halide yog nyob rau ntawm qhov hluav taws kub, Daim duab 1 qhia txog isothermal nkhaus daim duab ntawm lub arc raj ntawm 2000w hlau halide nuv ntses teeb.
Daim duab 1. Plasma kub profile ntawm2000w hlau halide nuv ntses teeb. Qhov deb ntawm electrode yog 4.2mm thiab isotherm nrug yog 250K
Nws tuaj yeem pom los ntawm qhov sib npaug saum toj no uas tib tus naj npawb ntawm luminous lub atoms muaj qhov sib txawv luminous siv nyob rau hauv ntau thaj tsam isotherm. Lub concentration ntawm NaI, ScI3 thiab lwm yam hlau halide molecules nyob rau hauv lub saturated vapor siab lub xeev yog txiav txim los ntawm lub txias kawg kub ntawm lub arc raj, cov kua hlau halide nto cheeb tsam txuas mus rau lub quartz raj phab ntsa nyob rau hauv lub txias kawg (txiav txim siab los ntawm cov hlau. halide filling tus nqi, cov duab thiab lub xeev ntawm qhov txias kawg saum npoo) thiab qhov ntws nrawm los ntawm cov kua hlau halide nto. Nws tuaj yeem pom tau tias qhov txias kawg ntawm lub arc yuav cuam tshuam rau atomic concentration thiab faib lub xeev, ntawm chav kawm, yuav cuam tshuam rau luminescence siv ntawm hlau halide teeb. Nws tsis yooj yim rau kev soj ntsuam cov kua theem hlau halide faib nyob ze ntawm qhov txias kawg ntawm cov hlau halide nuv ntses teeb nyob rau hauv lub ignition point kom zoo zoo. Nws tsis yog qhov nyuaj kom pom tias cov kua theem hlau halide faib nyob ze ntawm qhov txias kawg ntawm cov hlau halide teeb hloov tau zoo heev thaum ntxov mus rau kaum teev ntawm qhov hluav taws kub taw tes (tshwj xeeb tshaj yog Sc-Na series hlau halide teeb). Yog li ntawd, atomic concentration tis nyob rau hauv lub arc raj hloov heev, uas yog ib qho ntawm cov laj thawj tseem ceeb rau qhov loj pib lub teeb lwj ntawm hlau halide teeb.
Post lub sij hawm: Jun-19-2023