1 Performance sigogi bayan shafi
A cikin labarin da ya gabata, mun gabatar da ayyuka, ƙa'idodi, software na ƙira da dabarun sutura na gama gari na fina-finai na bakin ciki. A cikin wannan labarin, mun gabatar da gwajin sigogi na bayan-shafi. Siffofin aiki na farfajiyar ɓangaren bayan an rufe su sun haɗa da Transmittance (Transmittance), Reflectance (R), Absorptance (A), da sauransu. Bugu da ƙari, ƙaddamarwa (Transmittance) da sauransu. Siffar watsawa S (Scatter) na farfajiyar fim ɗin kuma yana buƙatar gwadawa da bincika.
Mai watsawa T shine rabon ƙarfin hasken da ke wucewa ta cikin fim ɗin zuwa makamashin hasken da ya faru. Tunanin R shine rabon ƙarfin ƙarfin da ke nunawa ta fuskar rufin zuwa makamashin da ya faru. Absorption A shine rabon makamashin hasken da Layer ɗin fim ke ɗauka zuwa ƙarfin hasken da ya faru. Don waɗannan sigogi guda uku, alaƙar suna wanzu:
T + R + A = 1
Wato, jimlar watsawa, tunani da kuma shayar da fim ɗin fim ɗin shine akai-akai 1. Wannan yana nufin cewa bayan hasken haske ya wuce ta cikin membrane, wani ɓangare na shi ya wuce ta, wani ɓangare na shi yana nunawa, sauran kuma. yana shafe da membrane.
A kanbangaren ganizane-zane, watsawa ko nunawa na fuskar fim yawanci ana buƙata, kuma ana buƙatar kewayon kewayon da yanayin da ya faru a ƙarƙashin yanayin aikace-aikacen. Idan kuma ana buƙatar polarization, ana buƙatar fayyace kewayon jihohin polarization a fili. A matsayin misali, buƙatun shafi a cikin adadi a ƙasa shine cewa a 770nm, abin da ke nunawa yana buƙatar zama ƙasa da 88% a yanayin digiri na 45, kuma a 550nm, watsawa ya kamata ya zama ƙasa da 70% a matakin digiri na 45.
Baya ga abubuwan da ke sama na gani, kayan aikin injiniya da sinadarai na fim ɗin fim ɗin kuma ana buƙatar la'akari da su, gami da juriya na lalacewa, ƙarfi, solubility na fim ɗin fim. Bugu da ƙari, ana buƙatar yin la'akari da ingancin yanayin fuskar bangon bayan an rufe shi, ciki har da buƙatun don pitting, scratches, datti, stains, da dai sauransu.
2 Ka'idar spectrophotometer
A cikin wannan takarda, mun mayar da hankali kan kaddarorin masu gani na hanyoyin gwajin fina-finai don gabatar da, a aikace, babban Spectrophotometer (Spectrophotometer) da Ellipsometer (Ellipsometer) don gwada sigogin fim, spectrophotometer na iya gwada watsawa, haskakawa da halayen halayen gani na gani. samfurori. Ellipsometer na iya auna kauri da halayen polarization na fim ɗin fim, kuma ka'idar duka biyu tana kama.
Za a iya raba tsarin irin wannan na'ura zuwa kashi biyu na tashar samar da katako da tashar karɓar katako, lokacin da ake buƙatar gwada jigilar kayan aiki, an sanya sashin a tsakiyar tashoshi biyu, don haka katako. ya wuce ta hanyar samfurin, lokacin da ake buƙatar gwadawa na kayan aiki, an sanya sashin a gefe guda na tashoshi biyu, don haka katako ya nuna ta hanyar samfurin. A matsayin misali, ana nuna ƙa'idar spectrophotometer don auna watsa samfurin a cikin adadi mai zuwa:
A cikin hoton da ke sama, ƙarshen hagu shine tashar samar da katako, ta yin amfani da madaidaicin hasken bakan don fitar da haske, sa'an nan kuma ta hanyar rarrabuwa na grating da zaɓin tsaga, fitar da wani takamaiman tsayin haske na haske, katakon ya wuce. collimator 1, ya zama katako mai haɗaka, sannan ya wuce ta hanyar polarizer wanda zai iya jujjuya kusurwar, ya zama haske mai launi, kuma hasken polarized ya kasu kashi 2 ta hanyar spectroscope bayan an tattara collimator 2. Hasken haske yana nunawa a cikin na'urar ganowa, inda ake amfani da hasken da aka tattara a matsayin nuni don gyara motsin makamashi saboda sauyin yanayin hasken, kuma wani hasken haske ya ratsa cikin samfurin, an sake fasalin ta collimator 3 da collimator. 4, kuma ya shigar da mai ganowa a gefen dama na gwajin. A cikin gwaji na ainihi, ana samun ƙimar makamashi guda biyu ta hanyar sakawa da fitar da samfurin da aka gwada, kuma ana iya samun jigilar samfurin ta hanyar kwatanta makamashi.
Ka'idar ellipsometer yayi kama da ka'idar spectrophotometer da ke sama, sai dai an ƙara farantin igiya mai jujjuya 1/4 a matsayin nau'in ramuwa a cikin tashar aika katako da tashar karɓa, kuma ana ƙara polarizer a cikin tashar karɓa. , ta yadda za a iya bincikar halayen polarization na samfurin da sauƙi. A wasu lokuta, ellipsometer shima zai yi amfani da madaidaicin haske mai faɗi kai tsaye, kuma ya ɗauki tsaga da tsaga spectrometer a ƙarshen karɓa, haɗe tare da na'urar gano tsararrun layi, don cimma gwajin aikin ɓangaren.
3. Gwajin watsawa
A cikin gwajin watsawa, don guje wa tunanin mai ganowa yana karɓar hasken haske, ana amfani da haɗin haɗin kai a matsayin mai karɓa, ana nuna ƙa'idar kamar haka:
Kamar yadda za a iya gani daga wannan adadi na sama, da integrating sphere wani rami ne mai rufi tare da farin yayyafa tunani shafi kayan a kan bango na ciki, kuma akwai wani taga ramin a kan ball bango, wanda ake amfani da matsayin haske rami na abin da ya faru. da ramin karɓa na mai gano haske. Ta wannan hanyar, hasken da ke shiga cikin haɗakarwa yana nunawa sau da yawa ta hanyar rufin bangon ciki, yana samar da haske iri ɗaya akan bangon ciki, kuma mai ganowa ya karɓa.
A matsayin misali, ana nuna tsarin na'urar da ake amfani da ita don gwada jigilar farantin gani a ƙasa
A cikin hoton da ke sama, ana sanya samfurin da aka gwada akan teburin daidaitawa wanda za'a iya matsawa cikin kwatance x da y. Ana iya gwada jigilar samfurin a kowane matsayi ta hanyar sarrafa kwamfuta na teburin daidaitawa. Hakanan za'a iya samun rarrabawar duka gilashin lebur ɗin ta hanyar gwajin dubawa, kuma ƙudurin gwajin ya dogara da girman tabo na katako.
4. Gwajin tunani
Don ma'aunin hasashe na gani na fim, yawanci akwai hanyoyi guda biyu, ɗayan ma'aunin dangi ne ɗayan kuma cikakkiyar ma'auni. Hanyar ma'auni na dangi yana buƙatar mai tunani tare da sanannen tunani don a yi amfani da shi azaman ma'anar gwadawa. A aikace, ana buƙatar yin la'akari da madubi na tunani akai-akai tare da tsufa ko gurɓataccen fim ɗin. Saboda haka, wannan hanya tana da yuwuwar kurakuran aunawa. Hanyar cikakkiyar ma'auni na haskakawa yana buƙatar daidaitawa na na'urar gwaji ba tare da sanya samfurin ba. A cikin hoton da ke ƙasa, an ba da tsarin na'urar VW ta al'ada don cimma cikakkiyar ma'auni na samfurin samfurin:
Hoton hagu a cikin wannan adadi na sama yana nuna wani tsari mai siffar V wanda ya ƙunshi madubai uku, M1, M2 da M3. Na farko, ana gwada ƙimar ƙarfin haske a cikin wannan yanayin kuma ana rubuta shi azaman P1. Sa'an nan kuma, a cikin adadi mai kyau, ana sanya samfurin da ke ƙarƙashin gwaji, kuma ana juya madubi na M2 zuwa matsayi na sama don samar da tsari mai siffar W. Za'a iya samun cikakkiyar ma'anar abin da aka auna. Hakanan za'a iya inganta wannan na'urar, alal misali, samfurin da ke ƙarƙashin gwajin yana sanye da tebur mai juyawa mai zaman kansa, ta yadda samfurin da ke ƙarƙashin gwajin za'a iya jujjuya shi zuwa kowane kusurwa, ta hanyar jujjuya madubi na M2 zuwa matsayi daidai, don cimma burin. fitowar katako, don haka za a iya gwada tunanin samfurin a kusurwoyi da yawa.
A matsayin misali, ana nuna tsarin na'urar da aka yi amfani da ita don gwada kwatancen farantin gani a ƙasa:
A cikin hoton da ke sama, an sanya samfurin da aka gwada akan teburin daidaitawa na fassarar x / y, kuma ana iya gwada tunanin samfurin a kowane matsayi ta hanyar sarrafa kwamfuta na teburin daidaitawa. Ta hanyar gwajin dubawa, ana iya samun taswirar rarraba taswirar dukkan gilashin lebur ɗin.
Tuntuɓar:
Email:jasmine@pliroptics.com ;
Waya/WhatsApp/Wechat:86 19013265659
Yanar Gizo: www.pliroptics.com
Ƙara: Ginin 1, No.1558, Titin hankali, Qingbaijiang, chengdu, sichuan, china
Lokacin aikawa: Afrilu-23-2024
