Ubusanzwe, spectrometero za fibre optique zikoresha fibre optique nk'icyuma gihuza ibimenyetso, kizaba gihujwe na spectrometero kugira ngo gisesengure spectrale. Bitewe n'uburyo fibre optique yorohereza abakoresha, bashobora kwiyorohereza cyane mu kubaka sisitemu yo kubona spectrale.
Akamaro ka spectrometero za fiber optique ni uburyo sisitemu yo gupima ifite modularity kandi ikoroha.spectrometero y'umugozi w'urumuriiva muri MUT mu Budage ni yihuta cyane ku buryo ishobora gukoreshwa mu isesengura rya interineti. Kandi kubera ikoreshwa ry'ibikoresho bipima byose bihendutse, igiciro cya spectrometer kiragabanuka, bityo ikiguzi cya sisitemu yose yo gupima kiragabanuka.
Imiterere y'ibanze ya spectrometer ya fiber optique igizwe n'akantu ko gukurura, agace gato, n'icyuma gipima. Ibipimo by'ibi bice bigomba kugaragazwa mu gihe uguze spectrometer. Imikorere ya spectrometer iterwa n'uburyo ibi bice bihurira n'uburyo bipimwa neza, nyuma yo gupima spectrometer ya fiber optique, muri rusange, ibi bikoresho ntibishobora kugira impinduka.
Intangiriro y'imikorere
gusya
Guhitamo uburyo bwo gushyiramo urusaku biterwa n'uburyo spectral ingana n'ibisabwa mu gupima. Kuri spectrometer za fiber optique, spectral ingana n'ubunini buri hagati ya 200nm na 2500nm. Bitewe n'uko spectral ingana n'ubunini, biragoye kubona spectral ingana n'ubugari; Muri icyo gihe, uko spectral ingana n'ubunini, urumuri rugabanuka. Ku bijyanye n'uburyo spectral ingana n'ubugari, 300 line /mm grating ni amahitamo asanzwe. Niba hakenewe spectral ingana n'ubunini, bishobora kugerwaho ukoresheje spectral ifite imirongo 3600 /mm, cyangwa ugahitamo detector ifite pixel resolution nyinshi.
agace
Umuyoboro muto ushobora kunoza ubushobozi bwo kugaragaza urumuri, ariko urumuri rukagabanuka; Ku rundi ruhande, imiyoboro migari ishobora kongera ubushobozi bwo kugaragaza urumuri, ariko ku bw'amahirwe yo kugaragaza urumuri. Mu bisabwa bitandukanye byo gukoresha, ubugari bw'umuyoboro bukwiye buratoranywa kugira ngo habeho umusaruro mwiza muri rusange w'ikizamini.
ikizamini
Igikoresho cyo gupima mu buryo bumwe na bumwe kigena ubushobozi bwo kureba no kumva neza kwa spectrometer ya fiber optique, agace gashobora kugaragara ku mucyo kuri icyo gikoresho gafite aho kagarukira, kigabanyijemo uduce twinshi duto kugira ngo kibone ubushobozi bwo kureba neza cyangwa kigabanyijemo uduce duto ariko tunini kugira ngo kibone ubushobozi bwo kureba neza. Muri rusange, ubushobozi bwo kumenya neza bwa CCD ni bwiza kurushaho, bityo ushobora kubona ubushobozi bwo kumenya neza nta buryo bwo kumva neza ku rugero runaka. Kubera ko icyuma gipima cyane n'urusaku rw'ubushyuhe bwa InGaAs muri infrared hafi ya infrared, ikigereranyo cy'urusaku hagati y'ibimenyetso n'urusaku cya sisitemu gishobora kunozwa neza binyuze mu gukonjesha.
Akayunguruzo k'urumuri
Kubera ingaruka zo gukwirakwiza urumuri mu byiciro byinshi za spectrum ubwayo, ingaruka zo gukwirakwiza urumuri mu byiciro byinshi zishobora kugabanuka hakoreshejwe akayunguruzo. Bitandukanye na spectrometer zisanzwe, spectrometer za fiber optique zitwikiriwe ku cyuma gipima urumuri, kandi iki gice cy'imikorere kigomba gushyirwa mu mwanya wacyo mu ruganda. Muri icyo gihe, igitambaro gifite kandi akazi ko kurwanya ubwiyongere bw'urusaku kandi kikanoza ikigereranyo cy'urusaku hagati y'ibimenyetso n'urusaku bya sisitemu.
Imikorere ya spectrometer iterwa ahanini n'urwego rwa spectrometer, ubushobozi bwo kureba neza (optical resolution) n'uburyo bwo kumva. Guhindura kimwe muri ibi bipimo akenshi bigira ingaruka ku mikorere y'ibindi bipimo.
Ikibazo nyamukuru cya spectrometer si ukurushaho gukoresha ibipimo byose mu gihe cyo gukora, ahubwo ni ugutuma ibipimo bya tekiniki bya spectrometer byuzuza ibisabwa mu mikorere itandukanye muri ubu buryo bwo guhitamo umwanya mu buryo butatu. Iyi ngamba ituma spectrometer ihaza abakiriya inyungu nyinshi hamwe n'ishoramari rito. Ingano y'agace gapima uburebure iterwa n'ibipimo bya tekiniki spectrometer ikeneye kugeraho, kandi ingano yayo ifitanye isano n'uburemere bwa spectrometer n'igiciro cy'umusaruro wa spectrometer. Ibicuruzwa bya spectrometer bigomba kuzuza neza ibipimo bya tekiniki bisabwa n'abakiriya.
Uruhererekane rwa Spectral
Spektrometerohamwe n'urusobe ruto rw'amatara (spectral range) akenshi bitanga amakuru arambuye ya spectral, mu gihe urusobe runini rw'amatara (spectral range) rufite urusobe rwagutse rw'amatara. Kubwibyo, urusobe rwa spectral rw'amatara (spectral range) ni kimwe mu bipimo by'ingenzi bigomba kugaragazwa neza.
Ibintu bigira ingaruka ku ruhererekane rwa spectral ahanini ni uguteranya n'icyuma gipima, kandi icyuma gipima n'icyuma gipima bijyana na cyo bitoranywa hakurikijwe ibisabwa bitandukanye.
ubushobozi bwo kumenya
Tuvuze ku bijyanye n'ubwiyongere bw'amarangamutima, ni ngombwa gutandukanya ubwiyongere bw'amarangamutima muri fotometeri (imbaraga ntoya z'ikimenyetso umuntuspectrometeroishobora kubona) n'uburyo bwo kumva ibintu muri stoichiometry (itandukaniro rito cyane mu bijyanye no kwinjiza ibintu nkuko spectrometer ishobora gupima).
a. Uburyo bwo gupima imiterere y'amafoto
Ku porogaramu zisaba spectrometer zigaragaza ubukana bwinshi, nka fluorescence na Raman, turasaba spectrometer za SEK thermo-cooled optical fiber detectors zifite thermo-cooled 1024 pixel two-dimensional array CCD detectors, hamwe na lenses detector condensing, indorerwamo za zahabu, n'imirongo miremire (100μm cyangwa yagutse). Iyi moderi ishobora gukoresha igihe kirekire cyo guhuza (kuva kuri milisegonda 7 kugeza ku minota 15) kugira ngo yongere imbaraga z'ibimenyetso, kandi ishobora kugabanya urusaku no kunoza imiterere y'urusaku.
b. Uburyo bwo kwiyumvisha ibintu mu buryo bwa stoichiometric
Kugira ngo hamenyekane agaciro kabiri k'umuvuduko wo kwinjiza ibintu hamwe n'ubwinshi bwa hafi cyane, ntabwo ari ngombwa gusa kumenya neza icyuma gipima urusaku, ahubwo hakenewe n'igipimo cy'urusaku hagati y'ibimenyetso n'urusaku. Igipimo cy'urusaku gifite igipimo cyo hejuru cyane cy'urusaku hagati y'ibimenyetso n'urusaku ni icyuma gipima urusaku gifite uburebure bwa 1024-pixels two-dimensional array CCD detector muri spectrometer ya SEK gifite igipimo cy'urusaku hagati y'ibimenyetso n'urusaku cya 1000: 1. Impuzandengo y'amashusho menshi ya spectral ishobora no kunoza igipimo cy'urusaku hagati y'ibimenyetso n'urusaku, kandi kwiyongera k'umubare mpuzandengo bizatuma igipimo cy'urusaku hagati y'ibimenyetso n'urusaku cyiyongera ku muvuduko wa kare, urugero, impuzandengo y'inshuro 100 ishobora kongera igipimo cy'urusaku hagati y'ibimenyetso n'urusaku inshuro 10, ikagera kuri 10.000: 1.
Umusozo
Ubushobozi bwo gupima urumuri ni ikintu cy'ingenzi mu gupima ubushobozi bwo gutandukanya urumuri. Niba ukeneye ubushobozi bwo gupima urumuri buri hejuru cyane, turakugira inama yo guhitamo icyuma gifite imirongo 1200/mm cyangwa irenga, hamwe n'akantu gato n'icyuma gipima imiterere ya CCD ya pixel 2048 cyangwa 3648.
Igihe cyo kohereza: 27 Nyakanga-2023