Shenyang Lub Tsev Kawm Ntawv Ntawm Automation Ua Kev Txhim Kho Tshiab Hauv Kev Txhim Kho Lub Sij Hawm Ntev Ntawm Kev Ntsuas Spectroscopic

Phau ntawv Journal of Analytical Atomic Spectrometry Cover Story

Schematic daim duab ntawm ID-PLS txoj kev
Nyob rau hauv lub tshav pob ntawm spectroscopy, kev ruaj ntseg mus sij hawm ntev yeej ib txwm yog ib qho tseem ceeb qhia txog kev ua tau zoo ntawm cov cuab yeej, uas yog ib qho tseem ceeb rau realizing high-precision ntsuas, thiab LIBS (laser-induced breakdown spectroscopy) tau pom muaj peev xwm loj nyob rau hauv lub tshav pob ntawm spectroscopy vim. nws qhov zoo ntawm kev tshawb nrhiav ceev ceev, tsis muaj qauv pretreatment, thiab real-time nyob rau hauv-situ detection, thiab lwm yam. Txawm li cas los, nyob rau hauv lub tswv yim daim ntawv thov, tshwj xeeb tshaj yog nyob rau hauv lub tshav pob ntawm laser-induced breakdown spectroscopy (LIBS), nws yog ib qho nyuaj heev mus cuag ntev- lub sij hawm stability nyob rau hauv lub teb. Txawm li cas los xij, hauv kev siv tswv yim, tshwj xeeb tshaj yog nyob rau hauv ib puag ncig kev lag luam, cov teeb liab drift teeb meem tshwm sim los ntawm ib puag ncig cuam tshuam tau dhau los ua qhov tseem ceeb txwv tsis pub siv dav hauv LIBS thev naus laus zis. Tsis ntev los no, pab pawg tshawb fawb LIBS ntawm Shenyang Institute of Automation, Suav Academy ntawm Kev Tshawb Fawb, tau ua tiav tshiab hauv daim teb no.
Txhawm rau daws qhov kev sib tw no, pab pawg LIBS tau tshaj tawm txoj hauv kev ID-PLS tom qab kev tshawb fawb tob. Ua ntej, cov kws tshawb fawb tau txais qhov zoo tagnrho tus nqi ntawm qhov kev siv qhov sib piv raws li tus qauv ntau, thiab tom qab ntawd qhia txog qhov sib piv ntawm tus nqi drift (xws li, qhov sib txawv ntawm tus nqi kuaj pom thiab tus nqi zoo tagnrho), uas pom tau qhov tseeb tus yam ntxwv ntawm qhov kev hloov pauv ntawm tus nqi. lub spectrum nyob rau hauv tus txheej txheem ntawm kev tshawb nrhiav ntev. Qhov thib ob, cov kws tshawb fawb siv qhov tsawg kawg nkaus squares algorithm (piv txwv li, PLS algorithm) hauv kev kawm tshuab los kawm txog kev sib raug zoo ntawm tus nqi drift thiab txoj cai intrinsic ntawm lub spectrum, calibrate tus spectral nrhiav tus nqi mus rau ib ncig ntawm lub zoo tagnrho tus nqi, thiab xyuas kom meej. tias qhov kev txwv qis ntawm nws cov txiaj ntsig calibration tsis qis dua li ntawm cov txheej txheem nruab nrab nruab nrab sab hauv cov txheej txheem, yog li txhim kho qhov kev ruaj ntseg ntev ntawm kev ntsuas spectral. Cov txiaj ntsig kev sim qhia tau hais tias qhov kev ruaj ntseg mus sij hawm ntev ntawm LIBS kev ntsuas tau ua tau zoo los ntawm txoj kev ID-PLS.
Txhawm rau txhawm rau txheeb xyuas qhov ua tau zoo ntawm ID-PLS txoj kev, pab pawg tshawb fawb tau siv nws mus rau tus kheej tsim LIBS steel muaj pes tsawg leeg sensor thiab sim nws ntawm cov qauv qis-alloy steel sib txawv. Cov txiaj ntsig kev sim qhia tau hais tias piv nrog cov txheej txheem kev hloov kho ib txwm muaj, tus txheej txheem ID-PLS ua tau zoo dua hauv kev ua haujlwm zoo ntawm ntau lub ntsiab lus xws li C, Si, Mo, Ni, Cu thiab Mn, muab cov tswv yim daws teeb meem los txhim kho qhov ntev. - lub sij hawm stability ntawm lub spectral sensor.
Cov txiaj ntsig kev tshawb fawb, lub npe hu ua Kev Sib Koom Tes ntawm Internal Standard thiab Dominant Factor PLS rau Txhim Kho Lub Sij Hawm Ntev ntawm LIBS Measurements, tau luam tawm nyob rau hauv Phau ntawv Journal of Analytical Atomic Spectroscopy (JASP), ib phau ntawv xov xwm hauv thaj tsam ntawm spectroscopy. Phau ntawv Journal of Analytical Atomic Spectrometry raws li daim ntawv npog. Cov kev tshawb fawb no tau txhawb nqa los ntawm National Key Research thiab Development Program ntawm Tuam Tshoj.