Tshiab technology ntawm txheej thickness ntsuas ntaus ntawv
Tam sim no, txawm hais tias nws yog lub npe nrov lossis cov chaw tsim khoom lag luam, txoj kev ua haujlwm ntawm lub ntsuas tuab hauv tsev thiab txawv teb chaws yuav tsum muaj cov kauj ruam hauv qab no:
1. Kev hloov kho xoom, uas txhais tau hais tias hloov kho rau xoom ntawm ib qho xoom phaj lossis ntawm cov khoom siv raw uas yuav tsum tau ntsuas;
Raws li kev ntsuas sib txawv ntawm cov khoom ntsuas, kho qhov tseem ceeb nrog cov ntawv xeem kom tsim nyog los txo qhov ntsuas qhov yuam kev. Feem ntau, txoj kev no tsis yog ib qho teeb meem thaum yuav khoom thiab siv cov cuab yeej tshiab, tab sis nws yog me ntsis cumbersome. Tab sis tom qab siv cov tshuaj ntsuam xyuas rau lub sijhawm, qhov teeb meem tshwm sim. Peb qhov ntsuas ntsuas qhov tseeb tau raug txo qis heev thaum lub sijhawm ua haujlwm. Nws nyuaj rau tuav. Yog vim li cas nyob rau hauv lub hauv paus ntsiab lus ntawm cov khoom, uas yog ib tug tuag flaw, uas yog, lub sojntsuam siv ib tug hlau nplaum los qhwv ib ncig ntawm lub coil. Tom qab siv tam sim no, ib qho chaw magnetic yog generated, uas yog irregular. Hmoov zoo, tam sim no muaj ib hom tshiab txheej txheej thickness gauge uas siv ib tug tshiab magnetic sensing technology. Hall effect, raws li peb paub, tau tshawb pom los ntawm Hall hauv 1879. Los ntawm kev kawm txog kev sib raug zoo ntawm Hall voltage thiab ua haujlwm tam sim no, ntsuas qhov sib nqus thiab permeability ntawm electromagnet, thiab kawm txog kev sib raug zoo ntawm Hall voltage thiab magnetic field, Hall pom. hais tias qhov sib txawv muaj peev xwm UH yog ncaj qha proportional rau tam sim no siv IH, ncaj qha proportional rau lub magnetic induction intensity B, thiab inversely proportional rau lub thickness d ntawm nyias zaj duab xis. Qhov no magnetic teb ua tsis tu ncua. Thaum lub hauv paus ntsiab lus no yog siv rau lub txheej thickness gauge, tsis tas yuav tsum tau kho lub xeem daim dua. Tshwj xeeb tshaj yog thaum ntsuas cov khoom nrog lub voj voog lossis concave, nws yooj yim dua thiab siv tau yooj yim dua.
