Kev faib tawm thiab ntsuas cov qauv ntawm txheej thickness gauges
1, Lub hauv paus ntsiab lus ntawm magnetic attraction ntsuas thiab thickness gauge
Lub zog nqus ntawm cov hlau nplaum (kev sojntsuam) thiab cov hlau nplaum hlau yog proportional rau qhov kev ncua deb ntawm ob, uas yog lub thickness ntawm txheej. Siv lub hauv paus ntsiab lus no los ua ib lub thickness gauge, tsuav yog qhov sib txawv ntawm permeability ntawm txheej thiab substrate loj txaus, nws yuav ntsuas tau. Muab hais tias feem ntau cov khoom lag luam yog tsim los ntawm stamping cov qauv hlau thiab kub-kuav los tiag thiab txias-kuav los tiag steel daim hlau, hlau nplaum thickness gauges yog siv dav tshaj plaws. Lub hauv paus qauv ntawm lub thickness gauge muaj hlau nplaum, relay caij nplooj ntoos hlav, kav, thiab nws tus kheej nres mechanism. Tom qab cov hlau nplaum yog nyiam rau cov khoom ntsuas, ntsuas lub caij nplooj ntoos hlav maj mam elongates qab nws, thiab lub zog tensile maj mam nce. Thaum lub zog tensile tsuas yog siab dua lub zog nqus, cov txheej tuab tuaj yeem tau txais los ntawm kev sau qhov loj ntawm lub zog tensile lub sijhawm thaum cov hlau nplaum sib nqus. Cov khoom tshiab tuaj yeem ua tiav cov txheej txheem kaw no. Cov qauv sib txawv muaj qhov sib txawv thiab kev siv.
Cov yam ntxwv ntawm cov cuab yeej no yog kev ua haujlwm yooj yim, ua haujlwm ntev, tsis xav tau lub zog hluav taws xob, tsis xav tau kev ntsuas ua ntej ntsuas, thiab tus nqi qis. Nws yog qhov tsim nyog rau kev tswj xyuas qhov zoo ntawm qhov chaw hauv lub rhiav.
2, Cov Ntsiab Cai ntawm Kev Ntsuas Sib Nqus Induction
Thaum siv lub hauv paus ntsiab lus ntawm kev sib nqus induction, lub thickness ntawm txheej yog ntsuas los ntawm qhov loj ntawm cov hlau nplaum flux ntws mus rau hauv ferromagnetic substrate los ntawm kev sojntsuam los ntawm cov txheej tsis ferromagnetic. Cov sib nqus sib nqus kuj tseem tuaj yeem ntsuas los sawv cev nws cov txheej tuab. Lub thicker lub txheej, ntau dua qhov sib nqus tsis kam thiab qhov me me ntawm qhov sib nqus flux. Lub thickness gauge siv lub hauv paus ntsiab lus ntawm magnetic induction tau, nyob rau hauv txoj cai, muaj ib tug tsis sib nqus txheej thickness ntawm ib tug sib nqus substrate. Feem ntau, qhov permeability ntawm lub substrate yuav tsum siab tshaj 500. Yog tias cov khoom siv txheej kuj muaj cov hlau nplaum, nws yuav tsum muaj qhov sib txawv loj txaus hauv permeability piv rau cov substrate (xws li npib tsib xee plating ntawm hlau). Thaum cov kev sojntsuam qhwv ib ncig ntawm lub kauj ntawm cov tub ntxhais mos yog muab tso rau ntawm cov qauv kuaj, qhov ntsuas tau txiav tawm qhov ntsuas tam sim no lossis teeb liab. Cov khoom siv thaum ntxov siv cov ntsuas ntsuas ntsuas ntsuas qhov ntsuas qhov loj ntawm qhov cuam tshuam ntawm lub zog hluav taws xob, thiab qhov ntsuas tau nthuav dav lub teeb liab los qhia qhov tuab ntawm txheej. 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 qhov kub thiab txias, siv cov magnetoresistance los hloov cov ntsuas ntsuas. Kev sib xyaw ua ke tsim los ntawm thiab kev nthuav qhia ntawm microcomputer tau txhim kho qhov ntsuas qhov tseeb thiab rov tsim dua tshiab (yuav luag qhov kev txiav txim ntawm qhov loj). Niaj hnub nimno magnetic induction thickness gauge nrog kev daws teeb meem mus txog magnetic induction thickness gauge _ Cov ntsiab lus ntawm Eddy Current Measurement _ Principles of magnetic attraction measurement and thickness gauge _ Lub thickness gauge raws li lub hauv paus ntsiab lus ntawm eddy tam sim no nce mus txog 0.1um, nrog rau qhov yuam kev tso cai ntawm 1% thiab kev ntsuas ntau ntawm 10mm.
Lub hauv paus ntsiab lus sib nqus tuab tuaj yeem siv los ntsuas cov xim txheej ntawm cov hlau, cov txheej txheem tiv thaiv ntawm cov plooj (porcelain thiab enamel), cov yas thiab roj hmab coatings, ntau yam tsis-ferrous hlau electroplating txheej xws li npib tsib xee chromium, nrog rau ntau yam kev tiv thaiv. corrosion txheej rau chemical thiab roj av industries.
3, Cov Ntsiab Cai ntawm Kev Ntsuas Tam Sim No
High zaus AC teeb liab tsim hluav taws xob electromagnetic teb nyob rau hauv qhov kev sojntsuam kauj, thiab thaum lub sojntsuam nyob ze rau tus neeg xyuas pib, eddy tam sim no yog tsim nyob rau hauv nws. Qhov ze ntawm qhov kev sojntsuam yog mus rau qhov conductive substrate, qhov ntau dua qhov eddy tam sim no thiab kev cuam tshuam impedance. Qhov kev tawm tswv yim no sawv cev rau qhov kev ncua deb ntawm qhov kev sojntsuam thiab cov khoom siv hluav taws xob, uas yog lub thickness ntawm cov txheej txheem uas tsis yog-conductive ntawm lub conductive substrate. Vim qhov kev ntsuas tshwj xeeb ntawm cov txheej tuab ntawm cov hlau tsis yog ferromagnetic substrates, hom kev sojntsuam no feem ntau hu ua kev sojntsuam tsis sib nqus. Qhov kev sojntsuam tsis sib nqus siv cov khoom siv ntau zaus raws li cov tub ntxhais coil, xws li platinum nickel alloy lossis lwm yam ntaub ntawv tshiab. Piv nrog rau lub hauv paus ntsiab lus ntawm magnetic induction, qhov sib txawv tseem ceeb yog qhov kev sojntsuam sib txawv, qhov zaus ntawm lub teeb liab sib txawv, thiab qhov loj thiab qhov sib txawv ntawm cov teeb liab sib txawv. Zoo li cov hlau nplaum induction thickness gauge, eddy tam sim no thickness gauge kuj ua tiav ib qho kev daws teeb meem ntawm 0.1um, ib qho kev tso cai yuam kev ntawm 1%, thiab qib siab ntau ntawm 10mm.
Lub thickness gauge siv lub hauv paus ntsiab lus ntawm eddy tam sim no tuaj yeem ntsuas cov coatings tsis muaj hluav taws xob ntawm txhua yam khoom siv hluav taws xob, xws li xim, txheej yas, thiab anodic oxide zaj duab xis rau ntawm qhov chaw ntawm lub dav hlau dav hlau, tsheb, khoom siv hauv tsev, aluminium alloy qhov rooj thiab qhov rais, thiab lwm yam. cov khoom siv aluminium. Cov khoom siv txheej txheej muaj qee qhov kev coj ua, uas tuaj yeem ntsuas los ntawm kev ntsuas, tab sis qhov sib piv ntawm cov conductivity ntawm ob yuav tsum muaj tsawg kawg yog 3-5 zaus sib txawv (xws li chromium plating ntawm tooj liab). Txawm hais tias cov hlau substrate kuj yog cov khoom siv hluav taws xob, cov qauv hlau nplaum tseem tsim nyog rau kev ntsuas cov haujlwm no.
