Thaum nws los txog rau atomic emission spectrometers, feem ntau cov neeg xav txog ICP-AES lossis tej zaum spark direct-reading spectrometers. Ob peb tug hais txog arc emission spectrometers. Txawm li cas los xij, ua ib tug tswv cuab qub ntawm tsev neeg atomic emission spectrometer, cov thev naus laus zis no tau ua rau muaj kev pab tseem ceeb hauv kaum xyoo dhau los rau kev tshuaj xyuas zoo thiab ntau ntawm cov khoom inorganic hauv cov teb xws li kev tshawb nrhiav geological, cov hlau tsis yog ferrous, thiab cov ntaub ntawv science.
Txawm niaj hnub no, nrog rau cov cuab yeej siv siab heev uas muaj ntau yam, nws cov txiaj ntsig - xws li kev tshuaj xyuas ncaj qha ntawm cov qauv hmoov thiab kev rhiab heev - tau ua rau nws yog txoj hauv kev xaiv los txiav txim siab nyiaj, boron, thiab tin hauv kev lag luam geological. Nws tseem yog ib qho cuab yeej tseem ceeb hauv cov chaw soj nstuam geological thiab tseem yog txoj hauv kev pom zoo rau kev ntes cov khoom tsis huv hauv cov hlau ntshiab siab xws li tungsten, molybdenum, niobium, thiab tantalum, nrog rau lawv cov oxides.
Lub spectrograph classic loj zuj zus
Ua ntej, cia peb paub txog cov "tub rog qub" ntawm arc emission spectrometry. Cov arc atomic spectrometers thaum ntxov siv cov phaj duab los ntes cov emission spectra thiab hu ua spectrographs. Zaj dab neeg pib xyoo 1969 thaum tus thawj coj ntawm Beijing Beifen Ruili Analytical Instruments (Group) Co., Ltd.—Beijing No. 2 Optical Instrument Factory—tau tsim ib lub spectrograph grating ib-meter dav hlau. Tus qauv no tseem yog qhov pom ntau hauv ntau lub chaw soj nstuam niaj hnub no.
Ib 'meter' spectrograph
Cov cuab yeej no zoo li ib tug "master chav tsaus ntuj." Txawm hais tias nyuaj rau kev khiav lag luam (yuav tsum muaj cov kauj ruam ua cov duab), nws qhov kev nkag siab zoo tshaj plaws tau tsim lub hauv paus rau kev tshuaj xyuas arc spectral thiab tsis tuaj yeem hloov pauv tau thaum lub sijhawm ntawd. Tej zaum koj kuj yuav tau pom cov qauv loj dua - ob-meter grating spectrographs nrog lub "barrel" ntsuab loj.
ob-meter grating spectrographs
Lub "phaj loj" uas ntev ob 'meter' ntawd zoo kawg li cas? Tam sim no, saib lub loj no hauv qab no. Lawv hais tias nws muaj qhov ntev ntawm 3.4 meters, uas tsis haum rau lub chaw kuaj mob ib txwm muaj, thiab nws kuj muaj lub teeb ci loj.
3.4-meter grating spectrograph
3.4-meter grating spectrograph excitation lub teeb qhov chaw
Cov Txheej Txheem Tau Txais Cov Ntaub Ntawv Nyuaj
Kev tau txais cov ntaub ntawv los ntawm lub spectrograph yog ib qho haujlwm nyuaj thiab nyuaj heev: tom qab npaj cov qauv, spectrograph tau ua tiav. Thaum ua tiav, lub phaj thaij duab yuav tsum tau tshem tawm thiab coj mus rau chav tsaus ntuj. Hauv qab lub teeb liab tsaus ntuj, lub phaj tau dhau los ua kev txhim kho, kho, thiab ntxuav - ib qho txheej txheem zoo ib yam li kev tsim cov duab dub thiab dawb.
Lub phaj uas tau ua tib zoo kho yuav dub tag nrho vim yog siv lub teeb ci ntau dhau, ua rau tag nrho cov haujlwm yav dhau los tsis muaj txiaj ntsig. Los yog, vim muaj teeb meem nrog tus tsim tawm lossis tus kho, lub phaj yuav tsaus dhau lossis kaj dhau siv tsis tau, yuam kom rov pib dua.
Chav tsaus ntuj
Vim muaj ntau cov kab spectral emission, koj yuav tsum tau tshuaj xyuas lawv hauv qab magnification siab, xaiv cov kab analytical rau txhua lub hom phiaj ib qho los ntawm ib qho. Kev tshuaj xyuas ntau yam yuav tsum tau ntsuas lawv qhov ceev siv lub densitometer. Txawm tias rau cov kws tshuaj xyuas uas muaj kev paub dhau los, qhov no tsis yog ib txoj haujlwm yooj yim; rau cov neeg tshiab, nws yog ib qho kev npau suav phem. Qhov muag nkees los ntawm kev ntsia ntawm cov kab, tab sis tsuas yog ob peb kab analytical tau txheeb xyuas.
Cov Duab Sensors Hloov Cov Phaj Duab
Nrog kev nce qib ntawm thev naus laus zis, thev naus laus zis ntawm cov cuab yeej ntsuas duab tau loj hlob thiab pom muaj kev siv thoob plaws hauv kev lag luam. Ib yam li cov koob yees duab digital hloov cov koob yees duab zaj duab xis, cov cuab yeej ntsuas duab tau hloov pauv arc emission spectrometry los ntawm kev hloov cov phaj duab ib txwm muaj. Siv cov nyhuv photoelectric, cov cuab yeej no hloov cov teeb liab optical mus ua cov teeb liab hluav taws xob, thaum kawg hloov lawv mus rau hauv cov khoom siv computer kom pom ncaj qha - tshem tawm cov txheej txheem nrhiav cov ntaub ntawv nyuaj ntawm cov spectrographs ib txwm muaj.
Lub sijhawm hloov pauv tiag tiag tau los ntawm xyoo 2011 thiab 2014.BFRLtau tsim tawm AES-7000 series—ib qho kev tsim kho tshiab uas ua ke kev tshuaj xyuas spectral arc nrog cov raj photomultiplier (PMTs) los ua tiav "kev nyeem ncaj qha." Cov neeg siv thaum kawg tau dim ntawm cov kauj ruam siv zog ntau xws li kev ua phaj thiab kev ntsuas qhov ceev, txhim kho kev ua haujlwm zoo heev thiab ua kom nrawm dua kev siv cov thev naus laus zis no hauv geology thiab metallurgy.
Txawm hais tias AES-7000 series ceev, nws muaj kev txwv - nws cov kab spectral tau kho. Xyoo 2017,BFRLtau ua ib kauj ruam ntxiv mus tom ntej nrog kev tso tawm ntawm lub cim tshiab ntawm lub tshuab ntsuas hluav taws xob arc emission spectrometer, AES-8000. Lub cuab yeej no tau txais lub zog ntawm cov spectrographs grating ib-meter ib txwm muaj - alternating current / direct current (AC / DC) arc excitation, lub kaw lus teeb pom kev zoo peb-lens, thiab txoj kev pom kev zoo Ebert-Fassie - thaum siv lub sensor CMOS ua haujlwm siab rau kev kuaj pom teeb liab. Tsim dua tshiab tag nrho, nws tau ua tiav ib kauj ruam los ntawm "paub tias nws muaj" mus rau "pom txhua yam." Yooj yim rau kev khiav lag luam, ceev, thiab yooj yim, AES-8000 ncaj qha daws cov teeb meem ntawm cov neeg siv spectrograph thiab sai sai los ua cov khoom tseem ceeb hauv tiam tshiab ntawm arc emission spectrometers.
✔ Kev Ua Tau Zoo Tshaj Plaws: Kev siv "Ebert-Fassie optical system + CMOS detector" ua ke. Qhov rhiab heev ntawm CMOS yog ntau zaus ntawm CCDs ib txwm muaj, thiab ua ke nrog cov khoom siv patented, kev cuam tshuam keeb kwm yav dhau los raug txo qis.
✔ Kev Tsim Kho Tshiab: Kev tshuaj xyuas tag nrho cov spectrum tiag tiag. Nws tsis yog tsuas yog daws qhov teeb meem kev lag luam ntawm kev ntsuas cov ntsiab lus xws li nyiaj, tin, thiab boron hauv cov qauv geological tab sis kuj ua tau raws li qhov yuav tsum tau ua ntawm cov qauv hauv tebchaws.
✔ Kev Paub Ntse: Kev sib dhos electrode tsis siv neeg, kev sib txuas kev nyab xeeb, kev kho tom qab software tsis siv neeg - cov yam ntxwv ntse no ua rau lub cuab yeej tsis yog tsuas yog meej xwb tab sis kuj "siv tau yooj yim" thiab muaj kev nyab xeeb dua.
AES-8000 AC/DC Arc Emission Spectrometer
Kev Sib Piv Ntawm Qub Thiab AES-8000
| Cov Spectrograph Ib Txwm Muaj | AES-8000 |
| Kev ua haujlwm nyuaj (yuav tsum tau siv spectrography, kev ua phaj, kev nyeem spectrum, kev ntsuas qhov ceev, thiab lwm yam) | Kev siv yooj yim; cov txiaj ntsig ntawm kev sim ncaj qha |
| Kev siv tshuaj reagent (tus tsim tawm thiab tus kho yuav tsum tau npaj nrog ntau cov tshuaj lom neeg) | Tsis tas yuav siv cov tshuaj reagent |
| Cov phaj duab yog cov khoom siv tau - kim thiab tsis zoo ib yam | Lub kaw lus nrhiav tsis muaj cov khoom siv; qhov zoo ntawm kev thaij duab ruaj khov |
| Cov clamps electrode ib txwm muaj - tsis kam cua sov thiab yooj yim puas tsuaj | Cov clamps electrode txias nrog dej - lub neej ua haujlwm ntev |
| Kev kho qhov sib txawv ntawm lub electrode tes - muaj kev cuam tshuam ntau rau tib neeg qhov yuam kev | Kev teeb tsa electrode tsis siv neeg - kev ua haujlwm siab, rov ua dua zoo, tshem tawm qhov yuam kev ntawm tib neeg |
| Yuav tsum muaj kev txawj ntse siab ntawm tus kws tshuaj ntsuam xyuas - xav tau kev txawj ntse hauv kev txheeb xyuas spectrum, kev nyeem ntawv, thiab photometry | Chaw ua haujlwm software tswj hwm - xav tau cov neeg ua haujlwm tsawg, yooj yim kawm |
| Suab nrov nrov ntawm cov qauv ua kom muaj zog | Qhov chaw txhawb zog tshiab-ua haujlwm ntsiag to |
| Cov qauv yooj yim - kev nyab xeeb tsis zoo | Ntau yam kev ntsuas kev nyab xeeb: kev ua haujlwm chambersafety interlocks, circulating dej tsis siv neeg saib xyuas, kev tiv thaiv iav tiv thaiv electromagnetic hluav taws xob, thiab lwm yam. |
Los ntawm cov qauv qub mus rau kev tsim kho tshiab, thiab tom qab ntawd dhau los ua cov qauv qub dua. Hauv kev tsim cov arc emission spectrometers, kev siv zog ntawm Beijing Beifen-Ruili Analytical Instruments (Group) Co., Ltd. qhia txog txoj kev meej ntawm "kev sib txuas lus thev naus laus zis," raws li tau pom los ntawm nws cov khoom lag luam. Los ntawm kev txhim kho tus kheej tas mus li, lub tuam txhab tau rov ua dua ib txoj kev tshuaj xyuas "qub" hauv lub sijhawm ntawm thev naus laus zis ntse.
Lub sijhawm tshaj tawm: Tsib Hlis-28-2026