Inqaku lesi-2: Yintoni i-fiber optic spectrometer, kwaye ukhetha njani i-slit efanelekileyo kunye nefayibha?
I-Fiber optic spectrometers okwangoku imele udidi oluphambili lwee-spectrometers.Olu didi lwe-spectrometer luvumela ukuhanjiswa kwemiqondiso ye-optical ngokusebenzisa intambo ye-fiber optic, ebizwa ngokuba yi-fiber optic jumper, eququzelela ukuguquguquka okuphuculweyo kunye nokulula kuhlalutyo lwe-spectral kunye nokulungelelaniswa kwenkqubo.Ngokuchaseneyo neespectrometers zelabhoratri zesiqhelo ezixhotyiswe ngobude bogxininiso obususela kwi-300mm ukuya kwi-600mm kwaye zisebenzisa iigrayiti zokuskena, ii-fiber optic spectrometers zisebenzisa iigrayiti ezizinzileyo, zisusa imfuno yeenjini ezijikelezayo.Ubude bojoliso bezi spectrometers buqhelekile kuluhlu lwe-200mm, okanye banokuba mfutshane nangakumbi, ukuya kwi-30mm okanye 50mm.Ezi zixhobo zixinene kakhulu ngobukhulu kwaye ziqhele ukubizwa ngokuba ziifiber optic spectrometers ezincinci.
I-Fiber Spectrometer encinci
I-fiber optic spectrometer encinci ithandwa kakhulu kumashishini ngenxa yokubumbana kwayo, ukusebenza kakuhle kweendleko, ukukwazi ukubona ngokukhawuleza, kunye nokuguquguquka okumangalisayo.Ifiber optic encinci ye-fiber optic spectrometer ibandakanya i-slit, isipili esiconcave, igrayiti, i-CCD/CMOS detector, kunye ne-circuit drive ehambelana nayo.Iqhagamshelwe kwisoftware yekhompyuter (iPC) ngentambo ye-USB okanye intambo yesiriyali ukugqibezela ingqokelela yedatha ebonakalayo.
Ubume beFiber optic spectrometer
I-fiber optic spectrometer ixhotyiswe nge-adapter ye-fiber interface, inika uqhagamshelwano olukhuselekileyo lwefiber optical.Ujongano lwefayibha ye-SMA-905 lusetyenziswa kwifiber optic spectrometers ezininzi ukanti ezinye izicelo zifuna iFC/PC okanye ujongano lwefiber non-standard, olufana ne-10mm ububanzi becylindrical multi-core fiber interface.
I-SMA905 i-fiber interface (emnyama), i-FC / PC i-fiber interface (yellow).Kukho indawo yokubeka kwi-FC/PC interface yokubeka.
Isignali ye-optical, emva kokudlula kwi-fiber optical, iya kuqala idlule kwi-slit optical.I-spectrometers encinci ngokuqhelekileyo zisebenzisa ii-slits ezingalungisekiyo, apho ububanzi be-slit bulungiswa.Ngelixa, i-JINSP i-fiber optic spectrometer ibonelela ngobubanzi obuqhelekileyo be-slit ye-10μm, 25μm, 50μm, 100μm, kunye ne-200μm kwiinkcukacha ezahlukeneyo, kunye nokwenza ngokwezifiso kukwakhona ngokweemfuno zomsebenzisi.
Utshintsho kwi-slit wides lunokuchaphazela ukukhanya kunye nesisombululo se-optical ngokuqhelekileyo, ezi parameters zimbini zibonisa ubudlelwane borhwebo.Nciphisa ububanzi bomsintsi, unyuse isixazululo se-optical, nangona oko kuyindleko yokunciphisa ukukhanya.Kubalulekile ukuqaphela ukuba ukwandisa i-slit ukwandisa ukukhanya kokukhanya kunemida okanye akukho mgca.Ngokufanayo, ukunciphisa i-slit kunemida kwisisombululo esinokufezekiswa.Abasebenzisi kufuneka bavavanye kwaye bakhethe i-slit efanelekileyo ngokuhambelana neemfuno zabo zokwenyani, ezinjengokubeka kuqala ukukhanya okuguquguqukayo okanye isisombululo sokukhanya.Ngokuphathelele kulo mba, amaxwebhu obugcisa anikezelwe kwi-JINSP i-fiber optic spectrometers ibandakanya itheyibhile ebanzi enxibelelanisa ububanzi beslit kunye namanqanaba esisombululo esihambelanayo, esebenza njengesalathiso esixabisekileyo kubasebenzisi.
Umsantsa omxinwa
Slit-Resolution Comparison Table
Abasebenzisi, ngelixa beseta inkqubo ye-spectrometer, kufuneka bakhethe iifiber ze-optical ezifanelekileyo zokufumana kunye nokuhambisa iimpawu kwindawo ye-spectrometer ye-slit.Iiparamitha ezintathu ezibalulekileyo kufuneka ziqwalaselwe xa ukhetha iifiber optical.Iparamitha yokuqala yi-diameter engundoqo, ekhoyo kuluhlu lwezinto ezinokwenzeka ezibandakanya i-5μm, 50μm, 105μm, 200μm, 400μm, 600μm, kunye needayamitha ezinkulu ngakumbi ngaphaya kwe-1mm.Kubalulekile ukuqaphela ukuba ukwandisa i-diameter engundoqo kunokunyusa amandla afunyenwe kwisiphelo sangaphambili se-fiber optical.Nangona kunjalo, ububanzi be-slit kunye nokuphakama kwe-CCD / CMOS detector kunciphisa iimpawu ze-optical ezinokuthi i-spectrometer ingayifumana.Ke, ukonyusa idiameter engundoqo ayiphuculi ubuntununtunu.Abasebenzisi kufuneka bakhethe undoqo wedayamitha ofanelekileyo ngokusekwe kolona qwalaselo lwenkqubo.Kwii-spectrometers ze-B&W Tek zisebenzisa i-CMOS detectors ezihambelanayo kwiimodeli ezifana ne-SR50C kunye ne-SR75C, kunye noqwalaselo lwe-slit ye-50μm, kuyacetyiswa ukuba usebenzise i-200μm ye-core diameter ye-fiber optical yokwamkela umqondiso.Kwi-spectrometers kunye neendawo zangaphakathi ze-CCD detectors kwiimodeli ezifana ne-SR100B kunye ne-SR100Z, kunokuba kufanelekile ukuqwalasela imicu ye-optical ebanzi, efana ne-400μm okanye i-600μm, yolwamkelo lomqondiso.
Iidamitha ezahlukeneyo zefiber optical
Isignali yeFiber optic idityaniswe kwindawo eqhekekileyo
Inkalo yesibini luluhlu lwe-wavelength yokusebenza kunye nezixhobo zemicu ye-optical.Izinto zefiber optical ngokuqhelekileyo ziquka i-High-OH (i-hydroxyl ephezulu), i-Low-OH (i-hydroxyl ephantsi), kunye ne-UV-resistant fibers.Izinto ezahlukeneyo zineempawu ezahlukeneyo zokuhambisa amaza.I-High-OH ye-optical fibers isetyenziswa ngokuqhelekileyo kwi-ultraviolet / ukukhanya okubonakalayo (UV / VIS), ngelixa i-Low-OH fibers isetyenziswe kwi-infrared-infrared (NIR) uluhlu.Kuluhlu lwe-ultraviolet, iifiber ezikhethekileyo ezichasene ne-UV kufuneka ziqwalaselwe.Abasebenzisi kufuneka bakhethe i-fiber ebonakalayo efanelekileyo ngokusekelwe kubude bamaza okusebenza.
Inkalo yesithathu yixabiso le-aperture yamanani (NA) ye-optical fibers.Ngenxa yemigaqo yokukhutshwa kweefiber optical, ukukhanya okukhutshiweyo ukusuka ekupheleni kwefiber kuvalelwe ngaphakathi koluhlu oluthile lwe-angle divergence angle, oluphawulwa ngexabiso le-NA.Iifiber ze-optical mode ezininzi zinemilinganiselo ye-NA ye-0.1, 0.22, 0.39, kunye ne-0.5 njengezinto eziqhelekileyo.Ukuthatha i-0.22 NA eqhelekileyo njengomzekelo, kuthetha ukuba ububanzi bendawo yefiber emva kwe-50 mm malunga ne-22 mm, kwaye emva kwe-100 mm, ububanzi bungama-44 mm.Xa kuyilwa i-spectrometer, abavelisi bahlala becinga ukuthelekisa ixabiso le-NA yefiber ebonakalayo ngokusondeleyo kangangoko kunokwenzeka ukuqinisekisa ulwamkelo lwamandla aphezulu.Ukongezelela, ixabiso le-NA le-fiber optical linxulumene nokudityaniswa kweelensi kwisiphelo sangaphambili sefiber.Ixabiso le-NA lens kufuneka kwakhona lihambelane ngokusondeleyo ngokunokwenzeka kwixabiso le-NA lefiber ukuphepha ukulahleka komqondiso.
Ixabiso le-NA le-fiber optical limisela i-angle yokuhlukana kwe-optical beam
Xa i-fibers optical isetyenziselwa kunye neelensi okanye izibuko ze-concave, ixabiso le-NA kufuneka lihambelane ngokusondeleyo kangangoko kunokwenzeka ukuphepha ukulahlekelwa kwamandla.
Iifiber optic spectrometers zifumana ukukhanya kwii-engile ezigqitywe yi-NA (Numerical Aperture) ixabiso.Umqondiso wesiganeko uya kusetyenziswa ngokupheleleyo ukuba i-NA yesibane sesiganeko singaphantsi okanye silingana ne-NA yesspectrometer.Ukulahlekelwa kwamandla kwenzeka xa i-NA yokukhanya kwesiganeko inkulu kune-NA ye-spectrometer.Ukongeza kwi-fiber optic transmission, i-free-space optical coupling ingasetyenziselwa ukuqokelela iimpawu zokukhanya.Oku kubandakanya ukuguqula isibane esinxuseneyo sibe sisikroba kusetyenziswa iilensi.Xa usebenzisa iindlela ze-optical space-free-space, kubalulekile ukukhetha iilensi ezifanelekileyo ezinexabiso le-NA elihambelana ne-spectrometer, ngelixa uqinisekisa ukuba i-spectrometer's slit ibekwe kwindawo ekugxilwe kuyo kwi-lens ukuphumeza ukukhanya okukhulu kokukhanya.
Indawo yasimahla yokudibanisa i-optical
Ixesha lokuposa: Dec-13-2023