Sib Nqus Induction Measuring Principple of Coating Thickness Gauge
Thaum lub hauv paus ntsiab lus ntawm magnetic induction yog siv, lub thickness ntawm txheej yog ntsuas los ntawm qhov loj ntawm cov hlau nplaum flux ntws los ntawm kev sojntsuam los ntawm cov non-ferromagnetic txheej rau hauv ferromagnetic substrate. Qhov loj ntawm qhov sib thooj magnetoresistance kuj tuaj yeem ntsuas los qhia qhov tuab ntawm txheej. Lub thicker lub txheej, ntau dua qhov tsis kam thiab qhov me me ntawm cov flux. Lub thickness gauge siv lub hauv paus ntsiab lus ntawm magnetic induction nyob rau hauv lub hauv paus ntsiab lus muaj lub thickness ntawm cov tsis-magnetic txheej ntawm cov hlau nplaum substrate. Feem ntau, qhov sib nqus permeability ntawm lub substrate yuav tsum siab tshaj 500. Yog hais tias cov ntaub ntawv cladding tseem sib nqus, qhov sib txawv loj txaus hauv permeability los ntawm cov khoom siv hauv paus yuav tsum tau (xws li npib tsib xee plating ntawm steel). Thaum qhov kev sojntsuam nrog lub coil qhov txhab ntawm cov tub ntxhais mos yog muab tso rau ntawm cov qauv mus kuaj, qhov ntsuas yuav txiav tawm qhov ntsuas tam sim no lossis kuaj teeb liab. Cov khoom lag luam thaum ntxov siv lub ntsuas ntsuas ntsuas ntsuas qhov loj ntawm qhov induced electromotive quab yuam, thiab qhov ntsuas tau nthuav tawm lub teeb liab los qhia cov txheej tuab. Nyob rau hauv xyoo tas los no, kev tsim hluav taws xob hauv Circuit Court tau qhia txog cov thev naus laus zis tshiab xws li kev ruaj ntseg zaus, lub sijhawm kaw, thiab kev them nyiaj kub, thiab siv cov hlau nplaum tiv thaiv rau kev ntsuas ntsuas ntsuas. Cov tsim kev sib xyaw ua ke kuj tseem siv tau, thiab microcomputer tau qhia, kom qhov ntsuas qhov tseeb thiab kev tsim tawm tau zoo dua qub (yuav luag qhov kev txiav txim ntawm qhov loj). Niaj hnub nimno magnetic induction thickness gauge muaj ib tug daws teeb meem ntawm 0.1um, ib tug tso cai yuam kev ntawm 1 feem pua, thiab ib tug ntau ntawm 10 hli. Lub hauv paus ntsiab lus sib nqus tuab tuaj yeem siv los ntsuas cov xim txheej ntawm cov hlau nto, plooj (porcelain, enamel tiv thaiv txheej), yas, roj hmab txheej, ntau yam uas tsis yog-ferrous hlau plating txheej xws li npib tsib xee thiab chromium, thiab ntau yam kev tiv thaiv corrosion rau cov roj chemical. kev lag luam.
