Erayada furaha: VPH holographic grating adag, spectrophotometer gudbinta, spectrometer milicsiga, Czerny-Turner indhaha.
1. Dulmar
Fiber optic spectrometer waxaa loo kala saari karaa milicsiga iyo gudbinta, marka loo eego nooca grating diffraction.Diffraction grating asal ahaan waa curiye indhaha ah, oo leh tiro badan oo qaabab isku mid ah oo dusha ama gudaha ah.Waa qayb muhiim ah oo ka kooban fiber optic spectrometer.Marka iftiinku la falgalo shabaqyadan, u kala firdhi xaglo kala duwan oo ay go'aamiyaan hirarka dhaadheer ee kala duwan iyada oo loo marayo ifafaale loo yaqaan kala duwanaanshaha iftiinka.
Xagga sare: spectrometer milicsiga takoorka (bidix) iyo mitirka gudbinta (midig)
Diffraction gratings guud ahaan waxaa loo kala saaraa laba nooc: milicsiga iyo gratings Gudbinta.Shabaqyada milicsiga waxaa loo sii kala qaybin karaa gratings milicsiga diyaaradda iyo shabaqyada isdhaafka ah, halka shabaqyada gudbinta loo kala qaybin karo shabagyada gudbinta nooca jeexdin iyo mugga marxaladda holographic (VPH).Maqaalkani waxa uu inta badan soo bandhigayaa spectrometer-ka milicsiga nooca dabka ee diyaarada iyo nooca VPH-ga grating spectrometer-ka gudbinta.
Kor: Milicsiga shabaggeedii (bidix) iyo shabaggeedii gudbinta (midig).
Waa maxay sababta spectrometers-yada intooda badani ay hadda u doorteen kala firdhinta grating halkii ay ka dooran lahaayeen priism?Waxa ugu horayn lagu go'aamiyaa mabaadi'da spectral grating.Tirada xariiqyada milimitirkiiba ee shabagga (cufnaanta xariiqda, unugga: xariiqyada/mm) ayaa go'aamiya awoodaha muuqaalka ee shafka.Cufnaanta xariiqda xariiqda sare waxay keentaa kala firdhisanaan weyn oo iftiinka hirarka hirarka kala duwan ka dib marka la dhex maro shabaqyada, taasoo horseedaysa xallinta indhaha sare.Guud ahaan, la heli karo iyo cufnaanta jeexdin waxaa ka mid ah 75, 150, 300, 600, 900, 1200, 1800, 2400, 3600, iwm, oo buuxinaya shuruudaha kala duwanaansho muuqaal iyo qaraaroHalka, spectroscopy priism spectroscopy ay xaddidan tahay kala firdhinta walxaha galaaska, halkaas oo hantida kala firidhsan ee muraayadda ay go'aamiso awoodda spectroscopic ee priism-ka.Maadaama waxyaabaha kala firdhisan ee alaabta dhalada ahi ay xadidan yihiin, way adagtahay in si dabacsanaan leh loo buuxiyo shuruudaha codsiyada kala duwan ee muraayadaha.Sidaa darteed, marar dhif ah ayaa loo isticmaalaa ganacsiyada yaryar ee fiber optic spectrometers.
Qoraal: Saamayn muuqaal ah oo cufnaanta jeexjeexyada kala duwan ee jaantuska sare.
Shaxanku waxa uu muujinayaa kala firdhisanaanta spectrometry ee iftiinka cad iyada oo loo marayo galaas iyo kala duwanaanshaha spectrometry iyada oo loo marayo shabag.
Taariikhda horumarinta ee gratings, ka bilowda classic "Young ee tijaabo double-jeexan" 1801, physicist British Thomas Young ogaaday faragelinta iftiinka isticmaalaya tijaabo laba-jeexan.Iftiin monochromatic ah oo dhex mara laba dalool ayaa muujiyay geeso dhalaalaya oo madow oo beddelanaya.Tijaabada laba-jibbaaran ayaa markii ugu horreysay xaqiijisay in iftiinku soo bandhigo astaamo la mid ah hirarka biyaha (dabeecadda hirarka iftiinka), taasoo keentay dareen bulshada fiisigiska.Ka dib, dhowr physicists ayaa sameeyay tijaabooyin faragalin badan oo kala go'an waxayna arkeen ifafaalaha kala duwanaansho ee iftiinka iyada oo loo marayo gratings.Ka dib, fiisigiste Faransiis Fresnel wuxuu sameeyay aragtida aasaasiga ah ee kala duwanaanshaha grating isagoo isku daray farsamooyinka xisaabeed ee uu soo saaray saynisyahan Jarmal ah Huygens, isaga oo sawiraya natiijooyinkan.
Sawirku wuxuu muujinayaa faragelinta laba-jibbaaran ee Young ee bidixda, oo leh geeso dhalaalaya oo madow oo beddelanaya.Kala duwanaansho-kala-goysyo badan (midig), qaybinta xargaha midabka leh ee amarro kala duwan.
2.Spektrooterka Milicsiga
Milicsiga spectrometer-yada sida caadiga ah waxay adeegsadaan dariiq indho-indhayn oo ka kooban shabagyo kala duwanaansho diyaaradeed iyo muraayado concave ah, oo loo yaqaan jidka indhaha ee Czerny-Turner.Guud ahaan waxa ay ka kooban tahay jeexan, daalac diyaaradeed oo ololaysa, laba muraayadood oo daboolan, iyo qalabka wax sheegta.Qaabayntan waxa lagu gartaa xalin sare, iftiin qalaad oo hooseeya, iyo soo saarista indhaha sare.Ka dib markii ay calaamada iftiinku ka soo gasho jeex cidhiidhi ah, waxa marka hore isku xidha laydh isbarbar socda oo leh milicsi concave, kaas oo markaas ku dhufanaya shabag-diffractive planar ah halkaas oo mawjadaha ka kooban yahay ay u kala qaybsan yihiin xaglo kala duwan.Ugu dambayntii, milicsada concave waxa uu diiradda saarayaa iftiinka kala firdhisan ee sawir-qaade iyo calaamadaha hirarka dhaadheer ee kala duwan waxa lagu duubaa pixels meelo kala duwan oo ku yaal chip photodiode, ugu dambayntiina soo saara spectrum.Caadi ahaan, spectrometer-ka milicsiga waxa kale oo ka mid ah filtarrada xakamaynaya kala-duwanaanshaha-dalabka-labaad iyo muraayadaha tiirka si loo hagaajiyo tayada spectra-soo-saarka.
Shaxanku waxa uu tusinayaa spectrometer-ka dariiqa indhaha ee CT-ga ah
Waa in la xuso in Czerny iyo Turner aysan ahayn kuwa hindisay nidaamkan indho-indheynta balse lagu xuso wax-qabadkoodii laxaadka lahaa ee dhinaca cilmiga aragga-Adalbert Czerny oo u dhashay Australia iyo saynisyahan Jarmal ah Rudolf W. Turner.
Jidka indhaha ee Czerny-Turner guud ahaan waxaa loo kala saari karaa laba nooc: la gooyay iyo mid la furay (M-nooca).Dariiqa indho-indheynta ee la gudbey/M-dariiqa indho-indheynta ayaa ah mid cufan.Halkan, qaybinta summeedka bidix-midig ee laba muraayadood oo isku dheggan marka loo eego shaadhka diyaaradda, waxay muujinaysaa magdhowga labada dhinac ee dhidibka ka baxsan, taasoo keentay xallinta indhaha sare.SpectraCheck® SR75C fiber optic spectrometer ayaa shaqaalaysa dariiqa indhaha ee nooca M-ga ah, waxa uu gaadhaa xalin sare oo indhaha ah ilaa 0.15nm inta u dhaxaysa ultraviolet ee 180-340 nm.
Xagga sare: Waddada indhaha ee iskutallaabta ah/nooca la fidiyay (M-nooca) waddada indhaha.
Intaa waxaa dheer, marka laga reebo shabagyada dabka fidsan, waxa kale oo jira daaqyo dab-damis ah.Shabagyada ololka ah ee qulqulaya waxaa loo fahmi karaa isku-darka muraayadda concave iyo shabag.Sidaa darteed, spectrometer-ka-sharafeed-ka-soo-baxa wuxuu ka kooban yahay oo keliya jeexan, shabagyo dab-damis ah, iyo qalab wax-beegto ah, taasoo keentay xasillooni sare.Si kastaba ha ahaatee, shabaqyada dabka isdhaafsan ayaa dhigay shuruudaha jihada iyo fogaanta iftiinka shilka-kala-duwan, iyadoo xaddidaysa fursadaha jira.
Xagga sare: spectrometer grating Concave.
Waqtiga boostada: Dec-26-2023