Tam sim no, ntau daim ntawv thov ntawm cov hlau nplaum yog raws li lub hauv paus ntsiab lus uas zoo li cov ncej tiv thaiv thiab cov ncej sib txawv nyiam thiab adsorb ferromagnetic tshuaj, xws li ntau yam khoom siv hlau nplaum, cov qauv sib nqus sib nqus, cov khoom sib nqus sib nqus, cov khoom sib nqus sib nqus, thiab lwm yam.
Rau kev siv hlau nplaum, txhua tus neeg them nyiaj zoo rau kev nyiam ntawm cov hlau nplaum. Lub attraction quab yuam ntawm ib tug hlau nplaum yuav xam tau. Cov qauv hauv qab no tuaj yeem siv rau kev siv. Txawm li cas los xij, nws yuav tsum tau muab sau tseg tias cov txheej txheem ua ntej ntawm cov mis yog qhov zoo tagnrho, uas yog, cov khoom sib nqus sib nqus yog qhov sib txawv heev thiab qhov sib nqus permeability ntawm cov khoom nyiam yog siab heev (cov ntaub ntawv tsis muaj zog sib nqus xws li 300 series Stainless hlau thiab lwm yam. ferrous alloys tsis muaj feem xyuam), lub thickness thiab adsorption cheeb tsam yog txaus (nce lub thickness thiab cheeb tsam suction quab yuam yuav tsis nce, uas yog, tsis hais magnetic to), txawm li ntawd los tus xam tus nqi tsuas yog siv raws li ib tug siv thiab tsis tau. siv raws li kev xam kom raug.
F(N)=2*S(m²)*B(T)²/μ0
Ntawm lawv, S sawv cev rau thaj chaw adsorption, B sawv cev rau huab cua sib nqus sib nqus flux ceev, thiab μ0 yog huab cua zoo sib nqus permeability (nws yog qhov tsis tu ncua, μ0=4π * 10-7 ).
Yuav ua li cas los txhim kho qhov attraction ntawm hlau nplaum?
Los ntawm cov qauv, peb tuaj yeem pom tias qhov kev nyiam ntawm cov hlau nplaum yog proportional rau thaj tsam adsorption thiab huab cua sib txawv flux ceev. Nws tuaj yeem pom tau tias ua rau thaj tsam adsorption thiab ua rau huab cua sib txawv flux ceev yog ob txoj hauv kev los txhim kho qhov kev nyiam ntawm cov hlau nplaum.
1. Ua kom thaj tsam adsorption
Yam khoom uas yuav tsum tau attracted yuav tsum tsawg kawg yog npog lub adsorption nto ntawm cov hlau nplaum, thiab lub thickness ntawm cov khoom yuav tsum tau attracted yuav tau nce yog hais tias tej yam kev mob tso cai.
Thaum ib tug hlau nplaum attracts hlau phaj:
Qhov loj ntawm thaj tsam ntawm cov phaj hlau, qhov ntau dua qhov nqus ntawm cov hlau nplaum thiab cov phaj hlau; Thaum lub adsorption cheeb tsam sib npaug rau thaj tsam ntawm cov hlau nplaum, qhov kev nyiam ntawm lub zog nqus kom nce yuav maj mam qeeb. Thaum lub phaj hlau loj txaus, nws tuaj yeem ua rau thaj tsam ntawm cov phaj hlau. Lub zog nqus dej yuav tsis raug txhim kho;
Thaum thaj tsam ntawm cov phaj hlau yog tib yam, thaum lub thickness ntawm cov phaj hlau yog nyias, ua kom cov thickness ntawm cov phaj hlau tuaj yeem ua rau kom lub zog nqus. Thaum lub phaj hlau yog tuab, qhov nce hauv qhov nqus tau los ntawm kev nce lub thickness ntawm cov phaj hlau yuav maj mam nce mus txog thaum tsis muaj kev txhim kho.
2. Ua kom cov pa sib nqus sib nqus flux ceev
Thaum qhov chaw adsorption S tseem tsis hloov pauv, nws yog ib txoj hauv kev zoo dua los ua kom lub zog nqus los ntawm kev ua kom cov huab cua sib nqus sib nqus flux ceev thiab txo qhov sib nqus nqus. Multi-pole magnetization tuaj yeem txo cov hlau nplaum kom zoo.
Los ntawm daim duab sib nqus teb simulation, peb tuaj yeem pom tias tom qab cov hlau nplaum hloov mus rau bipolar magnetization, cov hlau nplaum sib nqus tau txo qis, thiab feem ntau ntawm cov kab hlau nplaum sib nqus tsim ib lub voj voog kaw sib nqus hauv cov hlau adsorbed.
Yog hais tias tus naj npawb ntawm cov ncej yog ntxiv thiab ib daim ntawv hlau nplaum txuas ntxiv rau hauv qab ntawm cov hlau nplaum, qhov sib nqus flux to yuav raug txo kom tsawg thiab lub zog nqus yuav raug txhim kho ntxiv.
Cov qauv tsim tam sim no ntawm cov khoom sib nqus yog kom ua tiav kev siv cov khoom sib nqus. Los ntawm kev tsim ntawm ntau tus ncej sib nqus circuits lossis Halbach magnetic circuits, lossis nrog kev taw qhia ntawm qee cov ntaub ntawv nrog siab sib nqus permeability, lub magnetic teb tuaj yeem dhau los ntawm ntau qhov khoom raws li qhov ua tau. Kev nyiam cov khoom tsim ib lub voj kaw ntawm lub magnetic circuit. Cov ntawv thov ib txwm muaj xws li:
Roj hmab hlau nplaum yog tsim los rau ntau theem magnetization, ib txhia yog ob-sided multi-ncej, thiab ib txhia yog ib leeg-sided multi-ncej. Cov hlau nplaum kev ua tau zoo ntawm cov hlau nplaum roj hmab yog qhov tsawg heev, tab sis tom qab ntau tus ncej sib nqus hluav taws xob tsim, cov hlau nplaum sib nqus tau ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom. Magnetic to yog heev me me thaum lub sij hawm adsorption, ua rau cov nyhuv adsorption zoo dua;
Cov khoom siv sib nqus xws li lub qhov rooj nqus cov cuab yeej yog coj los ntawm cov ntawv sib nqus permeable. Thaum adsorbing, lub magnetic Circuit Court yuav luag tsim los ntawm cov khoom yuav adsorbed. Nyob rau hauv txoj kev no, kev siv tus nqi ntawm cov magnetic teb yog siab heev. Lub intuitive kev paub yog hais tias ntawm ib tug me me magnetic suction ntaus ntawv. (Qee tus tseem siv ferrite), thiab lub zog nqus yog loj heev thaum nyob rau hauv kev sib cuag ncaj qha.
Kev tsim cov khoom sib nqus yog inseparable los ntawm kev txiav txim siab ntawm adsorption nrug. Cov lus hais saum toj no adsorption yog raws li kev sib cuag ncaj qha. Yog tias qhov kev ncua deb hloov, lub zog nqus feem ntau hloov pauv ntau. Cov duab hauv qab no qhia tau hais tias muaj ntau yam zoo ib yam ntawm cov hlau nplaum sib nqus. Cov khoom siv thiab cov khoom sib nqus sib nqus muaj ntau txoj cai zoo sib xws. Qhov ntau ncej muaj, qhov ntau dua lub zog nqus yog nyob ntawm 0 qhov sib nrug, tab sis qhov attenuation yuav pom tseeb dua thaum qhov sib nrug nce.
