Iifiber spectrometers ze-Optical fiber zihlala zisebenzisa i-fiber optical njenge-coupler yomqondiso, eya kuba yi-photometric edityaniswe ne-spectrometer yohlalutyo lwe-spectral.Ngenxa yokuba lula kwefiber optical, abasebenzisi banokuguquguquka kakhulu ukwakha inkqubo yokufumana i-spectrum.
Inzuzo yefiber optic spectrometers kukumodareyitha kunye nokuguquguquka kwenkqubo yokulinganisa.Imicroi-fiber optical spectrometerukusuka eMUT eJamani ngokukhawuleza kangangokuba ingasetyenziselwa uhlalutyo lwe-intanethi.Kwaye ngenxa yokusetyenziswa kwee-detectors eziphantsi kwexabiso eliphantsi, ixabiso le-spectrometer liyancitshiswa, kwaye ngoko ixabiso lenkqubo yokulinganisa yonke iyancitshiswa.
Ubumbeko olusisiseko lwefiber optic spectrometer lubandakanya i-grating, i-slit, kunye ne-detector.Iiparamitha zala macandelo kufuneka zicaciswe xa kuthengwa i-spectrometer.Ukusebenza kwe-spectrometer kuxhomekeke kumdibaniso ochanekileyo kunye nokulinganisa la macandelo, emva kokulinganisa i-fiber spectrometer ye-fiber optical, ngokomgaqo, ezi zixhobo azikwazi ukuba naluphi na utshintsho.
Intshayelelo yomsebenzi
ukuhluza
Ukukhethwa kwegrating kuxhomekeke kuluhlu lwe-spectral kunye neemfuno zesisombululo.Kwifiber optic spectrometers, uluhlu lwe-spectral luhlala luphakathi kwe-200nm kunye ne-2500nm.Ngenxa yemfuno yesisombululo esiphezulu, kunzima ukufumana uluhlu olubanzi lwe-spectral;Kwangaxeshanye, kokukhona imfuneko yesisombululo iphezulu, kokukhona kunciphe ukukhanya okuguquguqukayo.Kwiimfuno zesisombululo esisezantsi kunye noluhlu olubanzi lwe-spectral, umgca we-300 / mm grating lukhetho oluqhelekileyo.Ukuba isisombululo se-spectral esiphezulu siyafuneka, sinokuphunyezwa ngokukhetha igrayiti enemigca ye-3600 / mm, okanye ukhethe i-detector ene-pixel resolution eninzi.
iqhekeza
I-slit encinci inokuphucula isisombululo, kodwa ukukhanya okukhanyayo kuncinci;Ngakolunye uhlangothi, i-slits ebanzi inokunyusa uvakalelo, kodwa ngeendleko zesisombululo.Kwiimfuno ezahlukeneyo zesicelo, ububanzi obufanelekileyo bokuqhekeza bukhethiwe ukuze kulungiswe iziphumo zovavanyo ngokubanzi.
phonononga
Isibonisi ngandlela thile simisela isisombululo kunye novakalelo lwefiber optic spectrometer, indawo enovakalelo olukhanyayo kwi-detector ngokomgaqo ulinganiselwe, yohlulwe ngokweepikseli ezininzi ezincinci zosombululo oluphezulu okanye zohlulwe zibe ipixels ezimbalwa kodwa ezinkulu zovakalelo oluphezulu.Ngokubanzi, ubuntununtunu be-CCD detector bungcono, ngoko ke unokufumana isisombululo esingcono ngaphandle kovakalelo kwinqanaba elithile.Ngenxa yovakalelo oluphezulu kunye nengxolo ye-thermal ye-InGaAs detector kufuphi ne-infrared, i-signal-to-noise ratio yenkqubo inokuphuculwa ngokufanelekileyo ngokusetyenziswa kwefriji.
Isihluzi esibonakalayo
Ngenxa yesiphumo se-multistage diffraction ye-spectrum ngokwayo, ukuphazamiseka kwe-multistage diffraction kunokuncitshiswa ngokusebenzisa isihluzo.Ngokungafaniyo ne-spectrometers eqhelekileyo, i-fiber optic spectrometers zigqunywe kwi-detector, kwaye le nxalenye yomsebenzi kufuneka ifakwe endaweni kwi-factory.Ngelo xesha, i-coating nayo inomsebenzi wokuchasana ne-reflection kwaye iphucula i-signal-to-noise ratio yenkqubo.
Ukusebenza kwe-spectrometer kuxhomekeke ngokukodwa kwi-spectral range, isisombululo se-optical kunye novakalelo.Utshintsho kwenye yezi parameters ludla ngokuchaphazela ukusebenza kwezinye iiparameter.
Umngeni oyintloko we-spectrometer ayikona ukwandisa zonke iiparameters ngexesha lokwenziwa, kodwa ukwenza izibonakaliso zobugcisa ze-spectrometer zihlangabezane neemfuno zokusebenza kwezicelo ezahlukeneyo kule ndawo yokukhethwa kwendawo emithathu.Esi sicwangciso senza ukuba i-spectrometer yanelise abathengi ngembuyekezo ephezulu kunye notyalo-mali oluncinci.Ubungakanani betyhubhu buxhomekeke kwizalathisi zobugcisa ekufuneka i-spectrometer iphumelele, kwaye ubukhulu bayo buhambelana nobunzima be-spectrometer kunye nexabiso lemveliso ye-spectrometer.Iimveliso zeSpectrometer kufuneka zihlangabezane ngokupheleleyo neeparitha zobugcisa ezifunwa ngabathengi.
Uluhlu lweSpectral
IiSpectrometerskunye noluhlu oluncinci lokubonwayo ludla ngokunika ulwazi olucacileyo lwembonakalo, ngelixa uluhlu lwembonakalo enkulu inoluhlu olubanzi lokubonwayo.Ngoko ke, uluhlu lwe-spectral lwe-spectrometer yenye yeeparamitha ezibalulekileyo ekufuneka zicaciswe ngokucacileyo.
Izinto ezichaphazela uluhlu lwe-spectral luyi-grating kunye ne-detector, kwaye i-grating ehambelanayo kunye ne-detector ikhethwa ngokweemfuno ezahlukeneyo.
ubuntununtunu
Ukuthetha ngobuntununtunu, kubalulekile ukwahlula phakathi kobuntununtunu kwiphotometry (awona mandla amancinane omqondiso ai-spectrometeriyakwazi ukubona) kunye nobuntununtunu kwi-stoichiometry (owona mahluko omncinci ekufunxeni ukuba i-spectrometer inokulinganisa).
a.Uvakalelo lwePhotometric
Kusetyenziso olufuna iispectrometers ezinovakalelo oluphezulu, olunje ngefluorescence kunye neRaman, sicebisa i-SEK thermo-cooled fibre spectrometers ene-thermo-cooled 1024 pixel i-dimensional array ye-CCD detectors, kunye ne-detector condensing lens, izibuko zegolide, kunye nezilayiti ezibanzi ( 100μm okanye ububanzi).Lo mzekelo unokusebenzisa ixesha elide lokudibanisa (ukusuka kwi-7 millisecond ukuya kwimizuzu ye-15) ukuphucula amandla omqondiso, kwaye unokunciphisa ingxolo kunye nokuphucula uluhlu oluguquguqukayo.
b.Uvakalelo lweStoichiometric
Ukuze ukhangele amaxabiso amabini okunyuka kwesantya kunye ne-amplitude esondele kakhulu, kungekhona nje uvakalelo lwe-detector olufunekayo, kodwa kunye ne-signal-to-noise ratio iyadingeka.I-detector ene-signal-to-noise ratio ephezulu yi-thermoelectric efrijini ye-1024-pixel i-dimensional array CCD detector kwi-spectrometer ye-SEK kunye ne-signal-to-noise ratio ye-1000: 1.Umyinge wemifanekiso emininzi ye-spectral inokuphucula i-signal-to-noise ratio, kwaye ukwanda kwenani eliphakathi kuya kubangela ukuba umlinganiselo we-signal-to-noise unyuke kwisantya sengcambu, umzekelo, umyinge wamaxesha angama-100 unako. ukwandisa umlinganiselo wesignali ukuya kwingxolo amaxesha ali-10, ufikelele kwi-10,000:1.
Isigqibo
Isisombululo se-Optical yiparameter ebalulekileyo yokulinganisa amandla okwahlula optical.Ukuba ufuna isisombululo esiphezulu kakhulu sokukhanya, sincoma ukuba ukhethe igrayiti enemigca eyi-1200/mm okanye ngaphezulu, kunye nomngxuma omxinwa kunye ne-2048 okanye 3648 pixels ye-CCD detector.
Ixesha lokuposa: Jul-27-2023