Ponena za ma spectrometer a atomiki, anthu ambiri nthawi yomweyo amaganiza za ICP-AES kapena ma spectrometer owerengera mwachindunji. Ochepa amatchula ma spectrometer a arc emission. Komabe, monga membala wakale wa banja la ma spectrometer a atomiki emission, ukadaulo uwu wapereka zopereka zazikulu m'zaka makumi angapo zapitazi pakusanthula kwabwino ndi kuchuluka kwa zinthu zopanda chilengedwe m'magawo monga kufufuza za nthaka, zitsulo zopanda chitsulo, ndi sayansi ya zinthu.
Ngakhale masiku ano, ndi zida zapamwamba zomwe zikupezeka paliponse, ubwino wake—monga kusanthula mwachindunji zitsanzo za ufa ndi kukhudzidwa kwambiri—kwapangitsa kuti ikhale njira yodziwika bwino yodziwira siliva, boron, ndi tin mumakampani opanga zinthu zapadziko lapansi. Ikadali chida chofunikira kwambiri m'ma laboratories a zapadziko lapansi ndipo ndi njira yodziwika bwino yodziwira zinthu zodetsedwa mu zitsulo zoyera kwambiri monga tungsten, molybdenum, niobium, ndi tantalum, komanso ma oxide awo.
Ma spectrograph akale omwe akukulirakulirakulira
Choyamba, tiyeni tidziwe bwino za "akatswiri akale" a arc emission spectrometry. Ma arc atomic spectrometer oyambirira ankagwiritsa ntchito mapepala ojambula zithunzi kuti agwire ma emission spectra ndipo ankatchedwa ma spectrograph. Nkhaniyi inayamba mu 1969 pamene kampani yomwe inayambitsa Beijing Beifen Ruili Analytical Instruments (Group) Co., Ltd.—Beijing No. 2 Optical Instrument Factory—inapanga bwino plane grating spectrograph ya mita imodzi. Chitsanzochi chikadali chofala m'ma laboratories ambiri masiku ano.
Spektrografi ya mita imodzi
Chida ichi chinali ngati "katswiri wa chipinda chamdima" wosamala kwambiri. Ngakhale kuti chinali chovuta kuchigwiritsa ntchito (chofuna njira zojambulira zithunzi), mphamvu yake yapadera inakhazikitsa maziko a kusanthula kwa ma arc spectral ndipo sichinasinthidwe panthawiyo. Mwina munawonanso ma model akuluakulu—ma spectrograph a mamita awiri okhala ndi "mgolo" waukulu wobiriwira.
ma spectrograph a grating a mamita awiri
Kodi "mgolo waukulu" wa mamita awiriwo ndi wodabwitsa bwanji? Tsopano, yang'anani chimphona ichi pansipa. Akuti chili ndi kutalika kwa mamita 3.4, komwe sikuli koyenera ku labotale wamba, ndipo chili ndi gwero lalikulu la kuwala kosangalatsa.
Masewero a grating a mamita 3.4
Gwero la kuwala kwa spectrograph ya 3.4-mita
Njira Yovuta Yopezera Deta
Kupeza deta kuchokera ku spectrograph kunali kovuta komanso kovuta: pambuyo pokonza chitsanzocho, spectrograph inkachitika. Akamaliza, chogwirira chithunzicho chinkafunika kuchotsedwa ndikuchitengera ku chipinda chamdima. Pansi pa kuwala kofiira kofiira, mbaleyo inkapangidwa, kukonzedwa, ndikutsukidwa—njira yofanana ndi kupanga zithunzi zakuda ndi zoyera.
Mbale yokonzedwa bwino ikhoza kukhala yakuda kwambiri chifukwa cha kuonekera kwambiri, zomwe zimapangitsa kuti ntchito yonse yakale ikhale yopanda ntchito. Kapenanso, chifukwa cha mavuto ndi wopanga mapulogalamu kapena chokonzera, mbaleyo ikhoza kukhala yakuda kwambiri kapena yopepuka kwambiri kuti isagwiritsidwe ntchito, zomwe zimapangitsa kuti iyambitsidwenso.
Chipinda chamdima
Chifukwa cha kuchuluka kwa mizere yotulutsa mpweya, mumayenera kuiyang'ana mozama kwambiri, kusankha mizere yowunikira ya chinthu chilichonse chomwe mukufuna. Kusanthula kuchuluka kumafuna kuyeza kuchuluka kwawo pogwiritsa ntchito densitometer. Ngakhale kwa akatswiri odziwa bwino ntchito, izi sizinali ntchito yophweka; kwa oyamba kumene, zinali zovuta. Maso anali ndi vuto poyang'ana mizere, koma mizere yochepa yokha ndiyo inapezeka.
Masensa a Zithunzi Amalowa M'malo mwa Mapepala Ojambula Zithunzi
Ndi kupita patsogolo kwa ukadaulo, ukadaulo wa sensa ya zithunzi unakula ndikupeza ntchito m'mafakitale osiyanasiyana. Monga momwe makamera a digito adasinthira makamera a kanema, masensa azithunzi adasinthira ma arc emission spectrometry mwa kusintha ma plate achikhalidwe ojambula zithunzi. Pogwiritsa ntchito mphamvu ya photoelectric, masensa awa amasintha ma signal optical kukhala ma signal amagetsi, pomaliza pake amawasintha kuti aziwonetsedwa mwachindunji pa mapulogalamu apakompyuta—kuchotsa njira yovuta yopezera deta ya ma spectrograph achikhalidwe.
Kusintha kwenikweni kunachitika pakati pa 2011 ndi 2014.BFRLidayambitsa mndandanda wa AES-7000—njira yatsopano yosokoneza yomwe idaphatikiza kusanthula kwa arc source spectral ndi ma photomultiplier tubes (PMTs) kuti akwaniritse "kuwerenga mwachindunji." Ogwiritsa ntchito pomaliza pake adamasulidwa ku njira zolimbikitsira ntchito monga kukonza mbale ndi kuyeza kuchulukana, zomwe zidakulitsa kwambiri magwiridwe antchito ndikufulumizitsa kugwiritsa ntchito ukadaulo uwu mu geology ndi metallurgy.
Ngakhale kuti mndandanda wa AES-7000 unali wachangu, unali ndi zoletsa—mizere yake ya spectral inakonzedwa. Mu 2017,BFRLChinapita patsogolo kwambiri ndi kukhazikitsidwa kwa spectrometer ya arc emission ya m'badwo wotsatira, AES-8000. Chida ichi chinalandira mphamvu za ma spectrograph achikhalidwe a mita imodzi—kusinthasintha kwa arc current/direct current (AC/DC), makina owunikira a ma lens atatu, ndi njira yodziwika bwino ya Ebert-Fassie—pogwiritsa ntchito sensa ya CMOS yogwira ntchito bwino kuti izindikire zizindikiro. Atakonzedwanso kwathunthu, adafika pamlingo wosiyana ndi "kudziwa kuti ilipo" kupita ku "kuona zonse." Pokhala yosavuta kugwiritsa ntchito, mwachangu, komanso mosavuta, AES-8000 inathetsa mavuto a ogwiritsa ntchito ma spectrograph ndipo mwachangu inakhala chinthu chofunikira kwambiri mu mbadwo watsopano wa ma spectrometer a arc emission.
✔ Kupambana kwa Magwiridwe Antchito: Kugwiritsa ntchito kuphatikiza kwa "Ebert-Fassie optical system + CMOS detector". Kuzindikira kwa CMOS kuli kochulukira kangapo kuposa kwa CCD wamba, ndipo kuphatikiza ndi ma optics omwe ali ndi patent, kusokoneza kwa background kumachepetsedwa.
✔ Kupanga Zinthu Mwatsopano: Kusanthula kwathunthu. Sikunangothetsa vuto la mafakitale loyesa molondola zinthu monga siliva, tin, ndi boron m'zitsanzo za geological komanso kunakwaniritsa zofunikira zenizeni za miyezo ya dziko.
✔ Chidziwitso Chanzeru: Kulinganiza ma electrode okha, maloko otetezera, kukonza maziko a pulogalamu yokha—zinthu zanzeruzi zimapangitsa chidachi kukhala cholondola komanso "chosavuta kugwiritsa ntchito" komanso chotetezeka.
AES-8000 AC/DC Arc Emission Spectrometer
Kuyerekeza Pakati pa Kale ndi AES-8000
| Spectrograph Yachikhalidwe | AES-8000 |
| Ntchito yovuta (imafuna spectrography, plate processing, spectrum reading, density measure, etc.) | Ntchito yosavuta; zotsatira za mayeso achitsanzo mwachindunji |
| Kugwiritsa ntchito ma reagent (wopanga ndi wokonza amafunika kukonzekera ndi mankhwala ambiri) | Palibe mankhwala ofunikira |
| Mapepala ojambula zithunzi ndi ogwiritsidwa ntchito—okwera mtengo komanso osagwirizana ndi khalidwe lawo | Dongosolo lozindikira lilibe zinthu zogwiritsidwa ntchito; khalidwe la kujambula ndi lokhazikika |
| Ma clamp amagetsi wamba—osalimba mtima kutentha ndipo amatha kuwonongeka mosavuta | Ma clamp a electrode oziziritsidwa ndi madzi—amakhala nthawi yayitali |
| Kusintha kwa ma electrode pamanja—kuthekera kwakukulu kwa zolakwa za anthu | Kulinganiza ma electrode okha—kulondola kwambiri, kubwerezabwereza bwino, kumachotsa zolakwika za anthu |
| Kufunika kwa luso lapamwamba lofufuza - kumafuna ukatswiri pa kuzindikira ma spectrum, kuwerenga, ndi kujambula zithunzi | Malo ogwirira ntchito a mapulogalamu amayendetsedwa—osafunikira anthu ambiri, osavuta kuphunzira |
| Phokoso lalikulu la chitsanzo chosangalatsa | Gwero la chisangalalo cha mbadwo watsopano—ntchito yodekha |
| Kapangidwe kosavuta—chitetezo chofooka | Njira zingapo zodzitetezera: maloko otetezera chipinda, kuyang'anira madzi okha, magalasi oteteza akatswiri ku kuwala kwa magetsi, ndi zina zotero. |
Kuchokera ku zinthu zakale kupita ku zinthu zatsopano, kenako nkukhala zinthu zakale kachiwiri. Pakupanga ma arc emission spectrometer, khama la Beijing Beifen-Ruili Analytical Instruments (Group) Co., Ltd. likuwonetsa njira yomveka bwino ya "kutumizana kwaukadaulo," monga momwe zasonyezedwera ndi kusintha kwa zinthu zake. Kudzera mu kudzikonza kosalekeza, kampaniyo yabwezeretsa njira "yakale" yowunikira munthawi yaukadaulo wanzeru.
Nthawi yotumizira: Meyi-28-2026