Txhua yam khoom yuav tsum tau sim hauv cov txheej txheem tsim khoom kom ua tau raws li cov qauv ntawm lub sijhawm tsim. Magnets tsis muaj kev zam.
Ua ntej ntawm tag nrho cov, nyob rau hauv cov nqe lus ntawm nws nto kev kho mob, peb yuav tsum tau siv ib tug zaj duab xis thickness 'meter' los ntsuam xyuas lub plating thickness ntawm cov hlau nplaum, thiaj li mus cuag qhov zoo tshaj plaws zoo ntawm cov plating nyob rau hauv cov txheej txheem ntawm electroplating. Qhov thib ob yog qhov loj ntawm qhov kev qhia tshwj xeeb, hauv cov txheej txheem no peb yuav tsum siv lub micrometer thiab vernier caliper los tswj qhov kam rau ua nyob rau hauv qhov ntau yam. Feem ntau qhov kev kam rau siab ntawm cov hlau nplaum yog ntxiv lossis rho tawm 0.05mm, tau kawg, qee cov neeg siv khoom muaj cov cai nruj dua rau nws. Tom ntej no yog qhov kev ntsuam xyuas magnetic. Qhov loj ntawm lub zog sib nqus tuaj yeem kuaj tau los ntawm Gaussian meter thiab flux meter. Gaussian meter feem ntau yog qhov ntsuas ntawm lub zog sib nqus ntawm qhov chaw ntawm cov hlau nplaum tiav. Lub fluxmeter yog tus qauv ntau dua li Gaussian meter, thiab lub fluxmeter ntsuas qhov sib nqus flux ntawm cov hlau nplaum sib nqus ntawm thaj chaw saum npoo.
