Chinyorwa Chechipiri: Chii chinonzi fiber optic spectrometer, uye unosarudza sei iyo yakakodzera slit uye fiber?
Fiber optic spectrometers parizvino inomiririra kirasi yepamusoro yema spectrometers.Ichi chikamu che spectrometer chinogonesa kutapurirana kwezviratidzo zvemaziso kuburikidza nefiber optic tambo, inowanzonzi fiber optic jumper, iyo inofambisa kuwedzeredzwa kuchinjika uye nyore mukuongorora kwe spectral uye masisitimu ehurongwa.Mukupesana neyakajairwa hombe marabhoritari spectrometers akashongedzerwa nehurefu hwakatarisana kazhinji kubva pa300mm kusvika 600mm uye kushandisa scanning gratings, faibha optic spectrometers inoshandisa yakagadziriswa magirati, kubvisa kudiwa kwemamotor anotenderera.Hurefu hwakatarisana neaya ma spectrometers anowanzo muhuwandu hwe200mm, kana anogona kunge akapfupika, kusvika pa30mm kana 50mm.Zviridzwa izvi zvakakura zvakanyanya muhukuru uye zvinowanzonzi miniature fiber optic spectrometers.
Miniature Fiber Spectrometer
Iyo miniature fiber optic spectrometer inonyanya kufarirwa mumaindasitiri nekuda kwekubatana kwayo, kudhura-kuita, kugona kuona nekukurumidza, uye kuchinjika kunoshamisa.Iyo miniature fiber optic spectrometer inowanzo sanganisira slit, concave girazi, grating, CCD/CMOS detector, uye yakabatana dhiraivha yedunhu.Yakabatana nekombuta inotambira (PC) software kuburikidza netambo ye USB kana serial tambo kuti ipedze kuunganidzwa kwedata.
Fiber optic spectrometer chimiro
Iyo fiber optic spectrometer inoshongedzerwa nefiber interface adapter, inopa yakachengeteka yekubatanidza kune optical fiber.SMA-905 fiber interfaces inoshandiswa mune yakawanda fiber optic spectrometers asi mamwe maapplication anoda FC/PC kana asiri-standard fiber interfaces, senge 10mm dhayamita cylindrical multi-core fiber interface.
SMA905 fiber interface (dema), FC/PC fiber interface (yero).Pane slot paFC/PC interface yekumisikidza.
Chiratidzo chemaziso, mushure mokupfuura nepakati pe optical fiber, inotanga kuenda kuburikidza ne-optical slit.Iwo madiki ma spectrometers anowanzo shandisa asina-inogadziriswa slits, uko iyo slit upamhi inogadziriswa.Ipo, JINSP fiber optic spectrometer inopa yakajairwa slit hupamhi hwe10μm, 25μm, 50μm, 100μm, uye 200μm mune akasiyana zvirevo, uye magadzirirwo anowanikwawo zvinoenderana nezvinodiwa nemushandisi.
Shanduko yehupamhi hwekutsemura inogona kukanganisa kuyerera kwechiedza uye kugadziriswa kwemaziso kazhinji, aya ma paramita maviri anoratidza hukama hwekutengeserana.Kupfupisa hupamhi hwekutsemura, kukwirisa kugadziridzwa kwemaziso, kunyangwe zvichidhura kuderera kwechiedza.Izvo zvakakosha kuti uzive kuti kuwedzera iyo slit kuti iwedzere mwenje flux ine zvisingakwanisi kana haina mutsara.Saizvozvo, kudzikisa slit kune zvisingakwanisi pane zvinogoneka kugadzirisa.Vashandisi vanofanirwa kuongorora uye kusarudza iyo yakakodzera slit zvinoenderana nezvinodiwa chaizvo, sekupa pamberi pechiedza flux kana optical resolution.Panyaya iyi, zvinyorwa zvehunyanzvi zvakapihwa JINSP fiber optic spectrometers zvinosanganisira tafura yakazara inobatanidza slit wides nemazinga anoenderana ekugadziriswa, kushanda sereferensi yakakosha yevashandisi.
Mukaha wakamanikana
Slit-Resolution Comparison Table
Vashandisi, pavanenge vachigadzira spectrometer system, vanofanirwa kusarudza yakakodzera mafiber optical yekugamuchira uye kuendesa masaini kune iyo spectrometer's slit chinzvimbo.Zvitatu zvakakosha parameters zvinofanirwa kutariswa pakusarudza optical fibers.Yekutanga parameter ndiyo dhayamita yepakati, inowanikwa mumhando dzakasiyana-siyana dzinosanganisira 5μm, 50μm, 105μm, 200μm, 400μm, 600μm, uye kunyange madhayamita akakura kupfuura 1mm.Izvo zvakakosha kuti uzive kuti kuwedzera dhayamita yepakati kunogona kuwedzera simba rinogamuchirwa kumucheto wepamberi weiyo optical fiber.Zvisinei, hupamhi hwekutsemura uye kureba kweCCD / CMOS detector inogadzirisa zviratidzo zvemaziso izvo spectrometer inogona kugamuchira.Saka, kuwedzera kwepakati dhayamita hakuregi kunatsiridza kunzwa.Vashandisi vanofanirwa kusarudza iyo yakakodzera yepakati dhayamita zvichibva pane chaiyo sisitimu yekumisikidza.Kune B&W Tek's spectrometers vachishandisa linear CMOS detectors mumamodheru seSR50C uye SR75C, ine 50μm slit configuration, zvinokurudzirwa kushandisa 200μm core diameter optical fiber yekugamuchira chiratidzo.Kune ma spectrometers ane emukati nharaunda CCD detectors mumhando dzakadai SR100B uye SR100Z, zvingava zvakakodzera kufunga gobvu optical fibers, akadai 400μm kana 600μm, nokuda chiratidzo kugamuchira.
Yakasiyana optical fiber madhayamita
Fiber optic chiratidzo chakabatanidzwa kune chakatsemuka
Chechipiri chikamu ndeyekushanda wavelength siyana uye zvinhu zve optical fibers.Optical fiber zvinhu zvinowanzo sanganisira High-OH (yakakwirira hydroxyl), Low-OH (yakaderera hydroxyl), uye UV-resistant fibers.Zvishandiso zvakasiyana zvine maitiro akasiyana ewavelength kutapurirana.High-OH optical fibers inowanzoshandiswa mu ultraviolet / inooneka chiedza range (UV / VIS), nepo Low-OH fibers inoshandiswa munzvimbo iri pedyo-infrared (NIR).Kune iyo ultraviolet renji, yakakosha UV-resistant fibers inofanirwa kutariswa.Vashandisi vanofanira kusarudza yakakodzera optical fiber zvichibva pane yavo yekushanda wavelength.
Chinhu chechitatu chiyero chenhamba (NA) kukosha kweoptical fibers.Nekuda kwekubuda kwemisimboti ye optical fibers, mwenje wakabudiswa kubva kumagumo efiber unovharirwa mukati meimwe divergence angle range, iyo inoratidzwa neNA kukosha.Multi-mode optical fibers kazhinji ine NA values dze0.1, 0.22, 0.39, uye 0.5 sezvinowanzoitwa sarudzo.Tichitora iyo yakajairika 0.22 NA semuenzaniso, zvinoreva kuti dhayamita yefiber mushure me50 mm inosvika 22 mm, uye mushure me100 mm, dhayamita i44 mm.Paunenge uchigadzira spectrometer, vagadziri vanowanzofunga kuenzanisa iyo optical fiber's NA kukosha padhuze sezvinobvira kuti ive nechokwadi chekugamuchira simba rakanyanya.Pamusoro pezvo, kukosha kweNA kwefiber optical kune hukama nekubatana kwemalenzi kumucheto kumberi kwefiber.Kukosha kweNA kwelenzi kunofanirawo kufananidzwa zvakanyanya sezvinobvira kuNA kukosha kwefiber kudzivirira kurasikirwa kwechiratidzo.
Iko NA kukosha kwefiber optical inosarudza divergence angle ye optical beam
Kana optical fibers ichishandiswa pamwe chete nemalenzi kana concave magirazi, kukosha kweNA kunofanirwa kuenzaniswa zvakanyanya sezvinobvira kudzivirira kurasikirwa kwesimba.
Fiber optic spectrometers inogamuchira mwenje pamakona akatemerwa neNA (Numerical Aperture) kukosha kwavo.Chiratidzo chechiitiko chichashandiswa zvizere kana iyo NA yechiedza chechiitiko chiri pasi kana kuenzana neiyo spectrometer's NA.Kurasikirwa kwesimba kunoitika kana iyo NA yechiitiko mwenje yakakura kupfuura NA ye spectrometer.Kuwedzera kune fiber optic kutapurirana, yemahara-nzvimbo optical coupling inogona kushandiswa kuunganidza mwenje masaini.Izvi zvinosanganisira kushandura mwenje wakafanana kuita chidimbu uchishandisa lenzi.Paunenge uchishandisa yemahara-nzvimbo yekuona nzira, zvakakosha kusarudza akakodzera lenzi ane NA kukosha inoenderana neiyo spectrometer, ukuwo uchive nechokwadi chekuti spectrometer's slit inomisikidzwa pakatarisana nelens kuti iwane yakanyanya kujeka flux.
Yemahara nzvimbo optical coupling
Nguva yekutumira: Zvita-13-2023