Xakamaynta fibreerka indhaha waxay caadi ahaan u isticmaalaan fibre-gaab indhaha isku xidha, kaas oo noqon doona sawir qaade lagu lammaaniyo spectrometer si loo baaro muuqaal muuqaal ah.Sababtoo ah ku habboonaanta fiber-ka indhaha, isticmaalayaashu waxay noqon karaan kuwo aad u dabacsan si ay u dhisaan nidaamka iibsiga spectrum.
Faa'iidada fibre optic spectrometers waa qaabka iyo dabacsanaanta nidaamka cabbirka.Microspectrometer fiber indhahalaga bilaabo MUT ee Jarmalka aad ayey u dhakhso badan tahay oo waxaa loo isticmaali karaa falanqaynta internetka.Iyo sababta oo ah isticmaalka qalabka caalamiga ah ee qiimaha jaban, qiimaha spectrometer waa la dhimay, sidaas awgeedna qiimaha nidaamka cabbirka oo dhan waa la dhimay.
Qaabaynta aasaasiga ah ee spectrometer-ka fiber optic-ga waxa uu ka kooban yahay shabag, dildilaac, iyo qalab wax baadha.Halbeegyada qaybahan waa in la cayimaa marka la iibsanayo spectrometer.Waxqabadka spectrometerku waxay kuxirantahay isku-dhafka saxda ah iyo isugeynta qaybahan, ka dib markii la isku hagaajiyo muraayadaha fiyuuska indhaha, mabda'a, qalabkani ma yeelan karaan wax isbeddel ah.
Hordhaca shaqada
daadin
Doorashada daaqsintu waxay ku xiran tahay baaxadda muuqaalka iyo shuruudaha xallinta.Fiber optic spectrometers, kala duwanaanta spectral inta badan waa inta u dhaxaysa 200nm iyo 2500nm.Baahida loo qabo xallinta xad-dhaafka ah awgeed, way adagtahay in la helo kala duwanaansho ballaadhan;Isla markaana, mar kasta oo ay sare u kacdo shuruudaha xallinta, qulqulka iftiinka ayaa yaraanaya.Shuruudaha xallinta hoose iyo kala duwanaanta muuqaalka ballaadhan, 300 line / mm grating waa doorashada caadiga ah.Haddii loo baahan yahay xallin heer sare ah oo muuqaal ah, waxaa lagu gaari karaa iyada oo la dooranayo sharooto leh 3600 xariiq / mm, ama dooranaya qalab leh xallin pixel badan.
jeexjeex
Jeexjeex yar ayaa hagaajin kara xallinta, laakiin qulqulka iftiinka ayaa ka yar;Dhanka kale, jeexjeexyada ballaaran ayaa kordhin kara dareenka, laakiin kharashka xallinta.Shuruudaha arjiga ee kala duwan, ballaca jeexan ee ku habboon ayaa la doortay si loo wanaajiyo natiijada guud ee imtixaanka.
baadhid
Baaraha siyaabaha qaar ayaa go'aamiya xallinta iyo dareenka spectrometer fiber optic, gobolka iftiinka xasaasiga ah ee qalabka wax baadha mabda'a xaddidan, waxaa loo qaybiyaa pixels yar yar oo badan oo loogu talagalay xallinta sare ama loo qaybiyo pixels yar laakiin ka weyn dareenka sare.Guud ahaan, dareenka CCD baaraha ayaa ka wanaagsan, marka waxaad heli kartaa xal ka fiican adiga oo aan ilaa xad xasaasi ahayn.Sababtoo ah dareenka sare iyo dhawaaqa kulaylka ee InGaAs ee qalabka infrared u dhow, saamiga signal-ilaa-sanqa ee nidaamka ayaa si wax ku ool ah loo hagaajin karaa iyada oo la adeegsanayo qaboojiyaha.
Filterka indhaha
Sababtoo ah saameynta kala-duwanaanshaha heerarka kala duwan ee spectrum lafteeda, faragelinta kala-duwanaanta heerarka kala duwan ayaa la dhimi karaa iyadoo la isticmaalayo shaandhada.Si ka duwan spectrometer-yada caadiga ah, spectrometers fiber optic ayaa lagu dahaadhay qalabka wax baadha, qaybtan shaqada waxay u baahan tahay in lagu rakibo goobta warshadda.Isla mar ahaantaana, dahaarka ayaa sidoo kale leh shaqada ka-hortagga-milicsiga iyo hagaajinta saamiga signal-ilaa-sanqa ee nidaamka.
Waxqabadka spectrometerka waxaa inta badan lagu go'aamiyaa kala duwanaanta muuqaalka, xallinta indhaha iyo dareenka.Isbeddelka lagu sameeyo halbeegyadan mid ka mid ah ayaa badiyaa saameyn doona waxqabadka cabbirrada kale.
Caqabadda ugu weyn ee spectrometer-ka ma aha in la kordhiyo dhammaan xuduudaha wakhtiga wax-soo-saarka, laakiin in la sameeyo tilmaamayaasha farsamada ee spectrometer-ka oo buuxiya shuruudaha waxqabadka ee codsiyada kala duwan ee doorashadan saddex-geesoodka ah.Istaraatiijiyadani waxay awood u siinaysaa spectrometer-ka inuu ku qanciyo macaamiisha soo celinta ugu badan ee maalgashiga ugu yar.Baaxadda cubedu waxay ku xidhan tahay tilmaamayaasha farsamada ee spectrometer-ku u baahan yahay si uu u gaadho, cabirkiisuna waxa uu la xidhiidha kakanaanta spectrometer-ka iyo qiimaha badeecada.Alaabta Spectrometer-ka waa inay si buuxda u buuxiyaan cabbirrada farsamada ee macaamiisha looga baahan yahay.
Kala duwanaanshaha Spectral
Spectrometersoo leh kala duwanaansho yar oo muuqaal ah ayaa badanaa bixiya macluumaad muuqaal ah oo faahfaahsan, halka kala duwanaansho muuqaaleed oo waaweyni ay leeyihiin muuqaal ballaadhan.Sidaa darteed, kala duwanaanta spectral ee spectrometer waa mid ka mid ah xuduudaha muhiimka ah ee ay tahay in si cad loo qeexo.
Qodobbada saameeya kala duwanaanshaha spectral inta badan waa shaadhida iyo baaraha, iyo shabaggeedii u dhigma iyo baaraha ayaa lagu doortay iyadoo loo eegayo shuruudo kala duwan.
dareen
Isagoo ka hadlaya dareenka, waxaa muhiim ah in la kala saaro dareenka u dhexeeya sawir-qaadista (xoogga calaamadda ugu yar ee aspectrometerlagu ogaan karo) iyo dareenka stoichiometry (farqiga ugu yar ee nuugista ee spectrometer uu cabbiri karo).
a.Dareenka Photometric
Codsiyada u baahan muraayadaha dareenka sare leh, sida fluorescence iyo Raman, waxaan kugula talineynaa SEK heerkul-qaboojiye fiber indhaha ah oo leh heerkul qaboojiye 1024 pixel laba-cabbir ah qalabka CCD, iyo sidoo kale qalabka wax sheega muraayadaha, muraayadaha dahabka ah, iyo jeexyo ballaaran ( 100μm ama ka ballaaran).Habkani wuxuu isticmaali karaa waqtiyo dheer oo isdhexgalka (laga bilaabo 7 millise seconds ilaa 15 daqiiqo) si loo hagaajiyo xoogga calaamada, wuxuuna yarayn karaa buuqa iyo hagaajinta kala duwanaanta firfircoonida.
b.Dareenka Stoichiometric
Si loo ogaado laba qiyam ee heerka nuugista oo leh ballac aad u dhow, ma aha oo kaliya dareenka aaladaha ayaa loo baahan yahay, laakiin sidoo kale saamiga signal-ilaa-sanqa ayaa loo baahan yahay.Dareemiyaha leh saamiga ugu sarreeya ee signal-ilaa-sanqa waa qaboojiyaha qaboojiyaha 1024-pixel laba-geesoodka ah ee CCD detector ee SEK spectrometer leh saamiga signal-ilaa-sanqa ee 1000:1.Celceliska sawirada muraayadaha kala duwan ayaa sidoo kale wanaajin kara saamiga calaamad-ilaa-sanqa, kororka tirada celceliska waxay keeni doontaa saamiga signal-ilaa-sanqa inuu kordho xawaaraha xididka labajibbaaran, tusaale ahaan, celceliska 100 jeer kordhi saamiga signal-ilaa-sanqa 10 jeer, oo la gaadho 10,000:1.
Qaraarka
Xallinta indhaha waa halbeeg muhiim ah oo lagu cabbiro awoodda kala-qaybinta indhaha.Haddii aad u baahan tahay xallinta indhaha oo aad u sareysa, waxaan kugula talineynaa inaad doorato shabag leh 1200 xariiq/mm ama ka badan, oo ay la socoto jeex cidhiidhi ah iyo 2048 ama 3648 pixel CCD detector.
Waqtiga boostada: Jul-27-2023