Koj puas tau xav dua vim li cas qee cov hlau nplaum kiv dawb thaum lwm tus nyob ruaj? Lo lus teb nyob rau hauv qhov xwm txheej hu ua lub caij sib nqus lub sijhawm. Cov tswv yim no pab kom peb to taub cov hlau nplaum ua li cas nyob hauv cov hlau nplaum sib nqus ntawm koj lub tub rog yooj yim rau cov hlau nplaum uas muaj zog hauv cov motors thiab mRI MACHINE. Los ntawm kev kawm paub txog cov hlau nplaum dipole lub sijhawm, koj tuaj yeem twv tau li cas cov hlau nplaum yuav cuam tshuam nrog lwm cov sib nqus teb thiab cov khoom tsim qauv uas siv hlau nplaum ntau dua. Hauv tsab xov xwm no, peb yuav coj koj kauj ruam los ntawm kauj ruam thiab tshawb nrhiav vim li cas cov sib nqus dipole lub tsho sib nqus me me nyob rau hauv ob qho tib si lub neej thiab thev naus laus zis.
Lub sijhawm sib nqus no yog dab tsi?
Lub caij sib nqus yog cov cuab yeej uas qhia koj tias cov hlau nplaum muaj zog npaum li cas thiab hauv cov ntsiab lus twg. Koj tuaj yeem xav txog nws li "thawb thiab rub lub zog" ntawm cov hlau nplaum hauv thaj chaw sib nqus. Nws siv rau txhua yam uas tsim cov hluav taws xob tawm, los ntawm cov hluav taws xob me me orbiting atoms rau cov hlau loj loj. Paub txog lub sijhawm sib nqus no pab koj twv seb yuav ua li cas cov hlau nplaum yuav cuam tshuam nrog lwm cov hlau nplaum lossis hluav taws xob. Hauv physics thiab engineering, cov ntsiab lus no yog qhov tseem ceeb rau kev tsim cov motors, sensors, thiab lwm yam uas cia siab rau cov rog sib nqus. Nws yog lub tswv yim yooj yim uas piav qhia ntau txog cov hlau nplaum coj tus cwjpwm.
Yuav ua li cas yog lub cev sib nqus tau ua?
Lub caij sib nqus yog tsim thaum twg muaj lub voj ntawm hluav taws xob hluav taws xob lossis txav mus rau qhov ntsuas. Nws yog qhov tshwm sim ntawm yuav ua li cas cov nqi txav mus, uas ua rau cov khoom sib nqus me me. Qhov tshwm sim no tshwm sim hauv ntau yam xwm txheej, xws li los ntawm cov loops yooj yim ntawm cov hlau rau cov atoms thiab lwg me me. To taub yuav ua li cas lub sib nqus caij ua haujlwm pab koj pom tias yog vim li cas hlau nplaum coj tus cwj pwm uas lawv ua thiab li cas zoo li cov neeg tsav tsheb thiab sensors ua haujlwm.
Qhov tseem ceeb ntawm txoj kev sib nqus ua ke yog tsim tawm:
Tam sim no loops: thaum hluav taws xob hluav taws xob ntws los ntawm lub voj ntawm xaim, nws tsim lub sijhawm sib nqus ntawm lub voj.
Kev tsa suab hluav taws xob: Cov hluav taws xob spinning ntawm lawv cov axis thiab orbiting ib ncig ntawm lub nucleus tsim cov kev sib nqus me me.
Molecular thiab atomic qauv: pawg ntawm atom tuaj yeem sib xyaw lawv lub sijhawm sib nqus, tsim kom muaj zog dua hauv cov ntaub ntawv zoo li hlau, npib tsib xee, thiab cobalt.
Vim li cas peb xam lub caij sib nqus no?
Xam lub caij sib nqus yog qhov tseem ceeb vim tias nws pab koj nkag siab thiab kwv yees yuav ua li cas hlau nplaum yuav coj tus cwj pwm sib txawv. Txawm hais tias koj ua haujlwm nrog cov hlau nplaum me me, cov khoom siv hluav taws xob, lossis txawm yog atoms, paub lub zog sib nqus muab koj cov ntaub ntawv muaj txiaj ntsig txog lub zog thiab kev taw qhia.
Nov yog vim li cas nws tseem ceeb:
Kwv yees nqus kev sib cuam tshuam:Los ntawm kev paub lub sijhawm sib nqus, koj tuaj yeem txiav txim siab tias cov hlau nplaum yuav nyiam li cas, repel, lossis sib nceev nrog txhua lwm yam.
Tsim Hluav Taws Xob Cov Hluav Taws Xob: Cov Hluav Taws Xob, Cov Hluav Taws Xob, thiab cov sensors cia siab rau cov khoom sib cav sib ceg. Xam lub zog sib nqus kom lawv txoj haujlwm zoo.
Cov ntaub ntawv kawm ntawm theem atomic:Cov kws tshawb fawb laij cov hli sib nqus ntawm cov electrons thiab nuclei kom nkag siab cov khoom sib nqus ntawm cov khoom siv thiab cov qauv lwg.
Txhim Kho Cov Thaiv Hlau Hlau:Paub lub hli sib nqus yuav pab hauv kev tsim cov ntaub thaiv cov thaiv kom tiv thaiv cov khoom siv rhiab rhiab los ntawm cov khoom sib nqus rhiab.
Los ntawm kev xam lub sij hawm sib nqus, koj tau txais kev tswj hwm hla cov hlau nplaum thiab tuaj yeem ua qhov kev txiav txim siab zoo dua ntawm ob qho kev sim thiab kev siv cov ntaub ntawv siv.
Lub sijhawm sib nqus tau zoo li cas?
Lub sijhawm sib nqus Dipole piav qhia txog qhov chaw sib nqus yog thiab cov kev taw qhia nws cov ntsiab lus. Hauv physics, nws tau siv los sawv cev cov hlau me me, hluav taws xob, lossis atomic hais raws li me me lops ntawm tam sim no. Engineers kuj siv nws los ua qauv bar hlau nplaum thiab electromagnets hauv cov khoom siv. Cov tswv yim hnub rov qab mus rau kev tshawb fawb thaum ntxov ntawm Magnetism, pab cov kws tshawb fawb Quancate sib nqus.
Koj pom cov sib nqus pov tseg thoob plaws koj ib puag ncig koj: ib qho yooj yimBar Magnet, lub kauj hauv hluav taws xob lub cev muaj zog, lossis txawm tias hluav taws xob tig mus hauv atoms. Lub sijhawm sib nqus dipole yog ze rau lub sijhawm sib nqus, qhia seb yuav ua li cas thiaj li sib nqus, thiab nws txuas rau cov khoom sib nqus, uas ntsuas seb cov ntaub ntawv twg teb rau ntawd.
Sib nqus Dipole lub sijhawm nyob rau hauv ib tug uniform sib nqus teb
Thaum muaj cov sib nqus dipole tau muab tso rau hauv cov kev sib nqus sib xyaw ua ke, nws tau ua lub zog uas nws ua kom haum rau nws. Qhov ntsiab lus tseem ceeb no piav qhia yog vim li cas lub pob hluav taws xob ib txwm cov ntsiab lus sab qaum teb thiab muaj pes tsawg lub sib nqus cuab yeej ua haujlwm.
Torque ntawm cov hlau nplaum dipole
Lub dipole xav tias lub zog sib ntswg, hu ua Torque, uas rotates nws kom dlhos nrog lub sib nqus. Lub zog ntawm cov torque no nyob ntawm lub caij sib nqus Diple lub sijhawm thiab lub kaum sab xis ntawm lub dipole thiab teb.
Muaj peev xwm lub zog ntawm lub dipole
Lub dipole muaj lub zog qis tshaj plaws thaum muaj kev vam meej nrog rau daim teb. Yog tias nws yog misaligned, nws lub zog nce. Cov tswvyim no tseem ceeb hauv kev nkag siab tias yuav ua li cas cov hlau nplaum ruaj khov hauv lub system.
Txawm tias quav me me, xws li cov khoom siv hluav taws xob lossis hluav taws xob atomic nuclei, ua raws tib txoj cai. Los ntawm kev nkag siab tias koob tshuaj yuav ua li cas nyob rau hauv ib qho teb uas hnav ris tsho, koj tuaj yeem twv tau lus tsa suab thiab tsim cov qauv sib nqus zoo dua qub.
Sib Nqus Field faib nyob ib ncig ntawm dipole
Ib qho kev sib nqus Dipole tsim cov pa sib nqus uas kis tawm ib puag ncig nws. Nkag siab txog cov duab thiab lub zog ntawm daim teb no pab koj twv seb yuav ua li cas lwm cov hlau nplaum lossis cov hlau nplaum yuav cuam tshuam nrog lub dipole.
Kab xaim thiab taw qhia
Cov kab sib nqus khiav tawm los ntawm North Ncej thiab voj ncig mus rau Sab Qab Teb Ncej. Lawv qhia cov kev taw qhia ib lub koob taw qhia me me yuav taw tes yog muab tso rau hauv. Qhov ze dua koj yog rau lub dipole, qhov muaj zog dua daim teb.
Lub zog thiab deb
Lub teb lub zog txo qis sai li koj tsiv tawm ntawm lub dipole. Nws poob tawm ntawm cov voos xwm yeem nrog lub voos xwmfab ntawm qhov kev ncua deb. Qhov no yog vim li cas cov hlau nplaum me me muaj qhov cuam tshuam zoo nyob ze tab sis nwlely cawv uas cuam tshuam rau cov khoom nyob deb.
Kev ua piv txwv
Ib hlau bar hlau nplaum qhia txog cov qauv no.
Cov kev sib nqus me me hauv atoms ua raws tib cov cai.
Cov kws ua engineers siv cov kev paub no thaum tsim cov motors, sensors, thiab sib nqus tiv thaiv.
Los ntawm kev nkag siab txog kev faib tawm nyob ib ncig ntawm Dipole, koj tuaj yeem pom cov rog sib txawv ntawm cov qauv qub thiab cov phiaj xwm uas ua rau feem ntau cov rog no.
Sib Nqus Dipe lub sij hawm mis nyuj thiab units
Lub sijhawm sib nqus Dipeole qhia koj tias qhov chaw sib nqus tau zoo yog thiab hauv qhov kev taw qhia nws cov ntsiab lus. Koj tuaj yeem suav nws siv cov mis yooj yim, uas ua rau nws nkag siab yooj yim thiab sib piv cov hlau nplaum sib txawv.
Cov Qauv Rau Lub Voj Tam Sim No
Rau lub voj ntawm hluav taws xob hluav taws xob tam sim no, lub caij sib nqus lub sijhawm yog:
μ=I⋅A
Kuv yog qhov kev ntws tam sim no los ntawm lub voj.
A yog thaj chaw ntawm lub voj, nrog kev taw qhia mus rau lub dav hlau ntawm lub voj.
Cov mis no qhia tau hais tias lub sijhawm Dipole lub sijhawm yog nyob ntawm ob lub zog ntawm qhov tam sim no thiab loj ntawm lub voj. Loj hlob lossis muaj zog tawg ua cov hlau nplaum loj loj.
Cov units ntawm kev sib nqus Dipole lub sijhawm
Nyob rau hauv si system, lub zog dipeole lub sijhawm yog ntsuas hauv ampere {{square metres (Ahb me). Lwm cov koog suav nrog:
Joules ib zaug (j / t) rau lub zog -}} muaj kev suav
NACH M / T rau torque -} muaj kev suav
Hauv CGS System, koj yuav pom Erg pawg ib leeg gaususs (Erge Street (Erge-lossis Electromagnetic Chav (EMU).
Cov kev nkag siab tseeb
Cov hlau nplaum me me muaj lub caij sib nqus lub sijhawm nyob rau hauv thaj tsam ntawm 10⁻² txog 10⁻¹ · M².
Cov khoom siv hluav taws xob thiab atoms muaj ntau cov kev sib nqus me me, ntsuas ntsuas hauv Bohr magnetons.
Los ntawm kev nkag siab cov mis thiab chav nyob, koj tuaj yeem ntsuas, piv, siv cov dipoletic zoo rau hauv ob qho kev sim thiab tiag - ntiaj teb cov khoom siv.
Dab tsi yog qhov sib txawv ntawm lub sijhawm sib nqus thiab sib nqus dipole lub sijhawm dipole?
To taub txog qhov sib txawv ntawm lub caij sib sib zog thiab sib nqus Dipole lub sijhawm Dipeole dipeole pab koj pom vim li cas lawv siv hauv cov ntsiab lus sib txawv. Ntawm no yog qhov yooj yim sib piv:
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Yam zoo |
Lub caij sib nqus |
Lub sijhawm sib nqus Dipole |
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Zaj piav |
Kev ntsuas dav dav ntawm lub zog thiab kev taw qhia ntawm cov hlau nplaum lossis tam sim no - nqa loop. |
Ib hom kev sib nqus me me uas sawv cev rau qhov chaw sib nqus ua ib qho dipole nrog kev taw qhia thiab qhov ntau. |
|
Tau luag |
Tuaj yeem piav qhia tag nrho cov khoom, molecules, lossis cov tshuab nrog ntau qhov chaw. |
Tsom ntsoov rau ib lub dipole ib zaug, xws li hluav taws xob, atom, lossis cov hlau nplaum me me. |
|
Cov Ntawv Thov |
Siv nyob rau hauv cov hlau nplaum dav hlau tsim, cov ntaub ntawv kev tshawb fawb, thiab ntaus twj engineering. |
Siv hauv physics ntawm atomic / molecular nplai, thiab rau kev kho cov qauv ntawm cov hlau me me. |
|
Cov cuab yeej vector |
Ib vector kom muaj nuj nqis muaj qhov ntau thiab kev coj ua. |
Tsis tas li, ib qho vector hais txog cov kev coj ua nrog cov sib nqus. |
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Cov lus ntawm ib txoj kab ke |
Nyob ntawm cov ntsiab lus teb; Rau lub voj tam sim no, {= i · a. |
Tib lub mis siv, tab sis tshwj xeeb kho cov khoom ua ib lub duav. |
Hauv ntej, lub zog dipole sib nqus yog lub tswv yim ntxiv uas sawv cev ib leeg, thaum lub sijhawm sib nqus tau piav qhia loj dua lossis cov khoom sib xyaw.
Sib Nqus Dipole lub sijhawm hauv kev siv cov ntawv thov
Sib nqus Dipole lub sijhawm ua si ib lub luag haujlwm tseem ceeb hauv ntau cov thev naus laus zis. Nkag siab lawv tuaj yeem pab koj cov khoom tsim tsim uas muaj txiaj ntsig ntau dua thiab txhim khu kev qha.
Daim Hlau nplaum Magnet Manufacturing
Lub sijhawm diphone txiav txim siab txog ob lub zog thiab kev taw qhia ntawm cov hlau nplaum tas mus li. Cov chaw tsim khoom ua tib zoo tswj cov khoom muaj pes tsawg leeg thiab cov txheej txheem havetization kom ntseeg tau tias cov dipoles yog ua raws cai kom raug. Qhov kev ua tau zoo no cuam tshuam rau kev ua tau zoo thiab ruaj khov ntawm cov hlau nplaum uas siv hauv cov neeg tsav tsheb, cov tshuab hluav taws xob, thiab lwm yam khoom siv.
Fais Motors thiab Generator
Hauv cov hluav taws xob cov tshuab hluav taws xob thiab cov tshuab hluav taws xob, cov sib nqus Dipole lub sijhawm thiab cov sib nqus yog cov rotors yog lub luag haujlwm rau kev ua kom tsim lub zog. Thaum cov dipoles tau ua raws li, cov khoom siv ua lag luam dua qhov yooj yim thiab muaj zog, txo cov kev ua tau zoo tag nrho.
Sib Nqus Sensors thiab Kev Ntsuas Cov Khoom
Sib nqus cov sensors thiab cov khoom sib tw tso siab ntseeg rau kev coj tus cwj pwm txeej. Xam lub hli dipole cia tso cai rau cov engineers los tsim cov khoom siv tsim nrog cov khoom thiab rhiab heev. Qhov no ua kom ntseeg tau tias kev ntsuas hluav taws xob tau ntseeg tau, txawm tias yuav tshuaj xyuas kev lag luam lossis kev sim tshawb fawb.
Daim hlau sib nqus tiv thaiv tsim
Sib nqus shielding yog lwm thaj chaw uas to taub dipole lub sij hawm yog qhov tseem ceeb. Los ntawm kev paub lub zog thiab kev taw qhia ntawm cov hlau nplaum tsuav, koj tuaj yeem tso cov ntaub ntawv pov thawj cov khoom kom nruj kev cuam tshuam tsis xav tau. Txoj hauv kev no tiv thaiv cov khoom siv rhiab tsis muaj kev cuam tshuam txoj haujlwm ntawm cov khoom siv nyob ze.
Los ntawm kev thov cov ntsiab cai ntawm kev sib nqus Dipole lub sijhawm, koj tuaj yeem txhim kho tus qauv thiab kev ua tau zoo ntawm cov hlau nplaum, cov tshuab raj, sensors, thiab tiv thaiv cov tshuab. Kev nkag siab meej ntawm kev coj tus cwj pwm meej meej uas koj cov khoom siv tau meej, muaj txiaj ntsig, thiab txhim khu kev qha.
Yuav Ua Li Cas Ntsuas Sib Nqus Dipole lub sijhawm
Kev ntsuas cov hlau nplaum dipeole lub sijhawm pab koj txiav txim siab rau ob lub zog thiab kev coj ntawm qhov chaw sib nqus. Qhov tseeb yog qhov tseem ceeb rau kev tshawb fawb thiab kev siv cov ntawv thov.
Kev sim ua
Ntau cov tswv yim feem ntau siv. Ib qho kev xaiv yog lub torsion sib npaug, qhov twg me ntsis hlau nplaum raug tshem tawm thiab nws lub zog rau hauv kev paub sib nqus yog ntsuas. Cov Qauv Vibrating Magnetometer (vsm) kuaj pom cov kev hloov pauv ntawm magnetization thaum cov qauv vibrates hauv kev sib nqus. Rau cov sib nqus me me dampolic, ib qho squid magnetometer tuaj yeem tshawb xyuas tsis muaj zog sib nqus cov cim ntawm atomic thiab molecular teev.
Ntsuas cov nyom
Cov hlau nplaum me me tuaj yeem nyuaj rau kev ntsuas vim tias cov rog me me yog qhov cuam tshuam yooj yim los ntawm lwm cov sab nraud. Cov no suav nrog cov sib nqus keeb kwm yav dhau los, qhov kub thiab txias hloov chaw, thiab kev siv neeg devrations. Koj yuav tsum ua tib zoo cais tawm koj cov teeb tsa thiab txo kev ntxhov siab.
Kev txiav txim siab yog thiab ntsuas
Yuav kom tau txais cov txiaj ntsig ncaj ncees, koj yuav tsum ntsuas koj cov twj paj nruag. Siv cov hlau nplaum siv nrog cov npe Dipole lub hli tso cai rau koj kom kho rau qhov yuam kev. Kev ntsuas kom raug kom ntseeg tau tias koj ntsuas hluav taws xob zoo ib yam thiab ntseeg tau.
Los ntawm nkag siab cov kev ntsuas ntsuas, cov kev sib tw, thiab kev xav tau, koj tuaj yeem tau txais cov ntaub ntawv sib nqus Dipole. Qhov kev paub no yuav pab koj hauv kev sim kev tshawb fawb thiab cov cuab yeej siv tswv yim.
Tag
Nkag siab txog lub cev sib nqus lub caij muab kev nkag siab rau cov hlau loj coj li cas, los ntawm cov hluav taws xob me me rau cov khoom siv roj loj. Los ntawm kev kawm cov ntsiab lus, cov qauv, thiab cov txuj ci ntsuas, koj tuaj yeem pom cov quav thiab cawv tiag- ntiaj teb daim ntawv thov. Txawm hais tias koj tau tsim cov motors, sensors, lossis cov thaiv npog, paub tias cov dipoles ua haujlwm pab koj ua Smarter, xaiv ntau dua. Nco ntsoov, kev sib nqus Dipole lub sij hawm tsis yog theoretical; Lawv ncaj qha cuam tshuam cov thev naus laus zis thiab kev sim koj ntsib txhua hnub. Saib xyuas lawv tus cwj pwm, thiab koj yuav tau txais kev nkag siab tob txog ntawm kev txawj ntse ntawm lub cev thiab engineering.
