Ndime 2: Kodi fiber optic spectrometer ndi chiyani, ndipo mumasankha bwanji kang'ono koyenera ndi ulusi?
Fiber optic spectrometers pano ikuyimira gulu lalikulu la ma spectrometer.Gulu la spectrometer limathandizira kufalitsa ma siginecha owoneka kudzera pa chingwe cha fiber optic, chomwe nthawi zambiri chimatchedwa fiber optic jumper, chomwe chimathandizira kusinthasintha komanso kusavuta pakuwunika kwa mawonekedwe ndi kasinthidwe kachitidwe.Mosiyana ndi ma spectrometer odziwika bwino a labotale okhala ndi utali wolunjika kuyambira 300mm mpaka 600mm ndikugwiritsa ntchito sikani ma grating, ma fiber optic spectrometers amagwiritsa ntchito ma grating okhazikika, kuthetsa kufunikira kwa ma motor kuzungulira.Kutalika kwa ma spectrometer awa nthawi zambiri kumakhala 200mm, kapena amatha kukhala amfupi, mpaka 30mm kapena 50mm.Zidazi ndizophatikizana kwambiri kukula kwake ndipo nthawi zambiri zimatchedwa miniature fiber optic spectrometers.
Miniature Fiber Spectrometer
Fiber optic spectrometer yaying'ono ndiyodziwika kwambiri m'mafakitale chifukwa chophatikizika, kutsika mtengo, kuzindikira mwachangu, komanso kusinthasintha kodabwitsa.Kachilombo kakang'ono ka fiber optic spectrometer nthawi zambiri imakhala ndi chotchinga, galasi lopindika, galasi, chowunikira cha CCD/CMOS, ndi zozungulira zoyendera.Imalumikizidwa ku mapulogalamu apakompyuta (PC) kudzera pa chingwe cha USB kapena chingwe chosalekeza kuti amalize kusonkhanitsa deta.
Mapangidwe a Fiber optic spectrometer
Fiber optic spectrometer ili ndi adaputala yolumikizira CHIKWANGWANI, imapereka kulumikizana kotetezeka kwa ulusi wa kuwala.SMA-905 fiber interfaces amagwiritsidwa ntchito mufiber optic spectrometers zambiri komabe ntchito zina zimafuna FC/PC kapena mawonekedwe osagwirizana ndi fiber, monga 10mm diameter cylindrical multi-core fiber interface.
SMA905 CHIKWANGWANI mawonekedwe (wakuda), FC/PC CHIKWANGWANI mawonekedwe (chikasu).Pali kagawo pa mawonekedwe a FC/PC kuti muyikepo.
Chizindikiro cha kuwala, chikadutsa mumtundu wa kuwala, chidzadutsa kaye podutsa.Ma spectrometer ang'onoang'ono amagwiritsa ntchito timipata tosasinthika, pomwe m'lifupi mwake amakhazikika.Pomwe, JINSP CHIKWANGWANI chamawonedwe spectrometer amapereka muyezo anatumbula m'lifupi mwake 10μm, 25μm, 50μm, 100μm, ndi 200μm mu specifications zosiyanasiyana, ndi makonda ziliponso malinga ndi zofuna za wosuta.
Kusintha kwa m'lifupi mwake kumatha kukhudza kusinthasintha kwa kuwala ndi mawonekedwe a kuwala nthawi zambiri, magawo awiriwa amawonetsa mgwirizano wamalonda.Chepetsani kukula kwa kang'ono, kwezani mawonekedwe a kuwala, ngakhale kuti mukuchepetsa kusinthasintha kwa kuwala.Ndikofunikira kudziwa kuti kukulitsa kagawo kakang'ono kuti muwonjezere kuwala kowala kumakhala ndi malire kapena sikuli kofanana.Momwemonso, kuchepetsa kung'ambika kuli ndi malire pazomwe zingatheke.Ogwiritsa ntchito akuyenera kuwunika ndikusankha kang'ono koyenera malinga ndi zomwe akufuna, monga kuyika patsogolo kusinthasintha kwa kuwala kapena mawonekedwe owoneka bwino.Pachifukwa ichi, zolemba zaukadaulo zoperekedwa za JINSP fiber optic spectrometers zikuphatikiza tebulo lathunthu lolumikizana ndi m'lifupi mwake ndi milingo yofananira, yomwe imagwira ntchito ngati kalozera wofunikira kwa ogwiritsa ntchito.
Mpata wopapatiza
Slit-Resolution Comparison Table
Ogwiritsa ntchito, pomwe akukhazikitsa makina owonera, ayenera kusankha ulusi wowoneka bwino kuti alandire ndi kutumiza ma siginecha kumalo ong'ambika a spectrometer.Zinthu zitatu zofunika ziyenera kuganiziridwa posankha ulusi wa kuwala.Gawo loyamba ndi mainchesi apakati, omwe amapezeka mosiyanasiyana kuphatikiza 5μm, 50μm, 105μm, 200μm, 400μm, 600μm, komanso ma diameter akulu kupitilira 1mm.Ndikofunikira kudziwa kuti kukulitsa mainchesi apakati kumatha kukulitsa mphamvu zomwe zimalandiridwa kumapeto kwa ulusi wa kuwala.Komabe, m'lifupi mwake ndi kutalika kwa detector CCD / CMOS zimachepetsa zizindikiro za kuwala zomwe spectrometer ingalandire.Chifukwa chake, kuchuluka kwa mainchesi sikungowonjezera chidwi.Ogwiritsa ntchito ayenera kusankha mainchesi oyenera malinga ndi dongosolo lenileni.Kwa ma spectrometer a B&W Tek omwe amagwiritsa ntchito zowunikira zofananira za CMOS mumitundu ngati SR50C ndi SR75C, yokhala ndi kasinthidwe ka 50μm, tikulimbikitsidwa kugwiritsa ntchito 200μm core diameter optical fiber polandila ma siginecha.Kwa ma spectrometer okhala ndi zowunikira za CCD mkati mwamitundu ngati SR100B ndi SR100Z, zitha kukhala zoyenera kuganizira ulusi wowoneka bwino, monga 400μm kapena 600μm, polandila chizindikiro.
Mitundu yosiyanasiyana ya kuwala kwa fiber
Chizindikiro cha Fiber optic chophatikizidwa ndi chodulidwacho
Mbali yachiwiri ndi mawonekedwe a kutalika kwa mawonekedwe ndi zida za ulusi wa kuwala.Zida zopangira kuwala nthawi zambiri zimaphatikizapo High-OH (high hydroxyl), Low-OH (low hydroxyl), ndi ulusi wosamva UV.Zida zosiyanasiyana zimakhala ndi mawonekedwe osiyana a kutalika kwa mawonekedwe.Ulusi wa High-OH optical fibers nthawi zambiri umagwiritsidwa ntchito pamtundu wa kuwala kwa ultraviolet / UV / VIS, pamene ulusi wa Low-OH umagwiritsidwa ntchito pafupi ndi infrared (NIR).Pamtundu wa ultraviolet, ulusi wapadera wosamva UV uyenera kuganiziridwa.Ogwiritsa ntchito asankhe ulusi woyenerera wa optical malinga ndi kutalika kwa magwiridwe antchito awo.
Mbali yachitatu ndi kabowo ka manambala (NA) a ulusi wa kuwala.Chifukwa cha mfundo zotulutsa ulusi wa kuwala, kuwala komwe kumachokera kumapeto kwa ulusi kumatsekeredwa mkati mwa njira ina yosiyana, yomwe imadziwika ndi mtengo wa NA.Ma Multi-mode Optical fibers nthawi zambiri amakhala ndi NA values 0.1, 0.22, 0.39, ndi 0.5 monga njira wamba.Kutengera mwachitsanzo 0,22 NA mwachitsanzo, zikutanthauza kuti m'mimba mwake wa ulusi pambuyo pa 50 mm ndi pafupifupi 22 mm, ndipo pambuyo pa 100 mm, m'mimba mwake ndi 44 mm.Popanga spectrometer, opanga nthawi zambiri amaganizira zofananitsa mtengo wa NA wa fiber kuwala kwambiri momwe angathere kuti atsimikizire kulandila mphamvu zambiri.Kuphatikiza apo, mtengo wa NA wa fiber optical umagwirizana ndi kulumikizana kwa magalasi kumapeto kwa ulusi.Mtengo wa NA wa mandala uyeneranso kufananizidwa kwambiri momwe mungathere ndi mtengo wa NA wa fiber kuti mupewe kutayika kwa chizindikiro.
Mtengo wa NA wa fiber optical umatsimikizira kusiyana kwa mtengo wa kuwala
Pamene ulusi wa kuwala umagwiritsidwa ntchito limodzi ndi magalasi kapena magalasi a concave, mtengo wa NA uyenera kufananizidwa kwambiri momwe mungathere kuti mupewe kutaya mphamvu.
Ma Fiber optic spectrometer amalandira kuwala pamakona omwe amatsimikiziridwa ndi mtengo wake wa NA (Numerical Aperture).Chizindikirocho chidzagwiritsidwa ntchito mokwanira ngati NA ya kuwala kwa chochitikacho ndi yocheperapo kapena yofanana ndi NA ya spectrometer.Kutayika kwa mphamvu kumachitika pamene NA ya kuwala kwa zochitika ndi yaikulu kuposa NA ya spectrometer.Kuphatikiza pa kufalitsa kwa fiber optic, kulumikizana kwapamlengalenga kwaulere kumatha kugwiritsidwa ntchito kusonkhanitsa ma sign a kuwala.Izi zimaphatikizapo kutembenuza kuwala kofanana kukhala kang'ono pogwiritsa ntchito ma lens.Mukamagwiritsa ntchito mayendedwe owoneka bwino amlengalenga, ndikofunikira kusankha magalasi oyenera okhala ndi mtengo wa NA wofanana ndi wa spectrometer, ndikuwonetsetsanso kuti kung'ambika kwa spectrometer kuli pamalo pomwe ma lens amawunikira kuti akwaniritse kuwala kokwanira.
Free space Optical coupling
Nthawi yotumiza: Dec-13-2023