Lub magnetic teb ntawm lub solenoid. electromagnets

Yog tsis muaj ib tug tsis ntseeg, tag nrho ib tug me nyuam nyiam mus ua si nrog cov hlau nplaum. Tau ib tug mus tas magnet yog heev yooj yim: nws xav tau kev pab mus nrhiav ib tug laus kem, tshem tawm nws los ntawm lub suab-me nyuam hais lus thiab, tom qab yooj yim "vandalnyh txiav txim," tau tawm ntawm nws lub nplhaib magnet. Tsis ceeb, ntau xeem twb nqa tawm nrog hlau filings thiab ib daim ntawv ntawm daim ntawv. Sawdust muab tso rau kab txaij - raws kab ntawm lub teb lub dag lub zog.

Nyob rau hauv hluav taws xob engineering yog ntau ntau ntau dua kev ruaj khov thiab electromagnets. magnetic teb, lub magnitude ntawm uas yog ncaj qha mus txog rau tam sim no tus nqi ntawm qhov tam sim no thaum kawg ntawm physics nws yog lub npe hu hais tias thaum hluav taws xob tam sim no ntws los ntawm tus neeg xyuas pib, nyob ib ncig ntawm lub xeem tsim.

Doubters yuav rov qab ua tej yam yooj yim xyaum ua tej yam ntawm Oersted, thaum lub compass yog muab tso rau ze ib tug ncaj neeg xyuas pib. Lub xub yuav thim ntawm lub geographic qaum teb ncej ntawm lub ntiaj chaw (perpendicular mus rau lub hlau). deflection kev taw qhia yuav tsum tau txiav txim siv sab tes xis txoj cai: muab koj txoj cai txhais tes xibtes down, thaum uas tig mus rau neeg xyuas pib. 4 ntiv tes yuav tsum taw tes cov kev taw qhia ntawm cov tam sim no. Ces bent 90 degrees tus ntiv tes xoo ntawd hais cov kev taw qhia ntawm cov xub deflection. Nyob ib ncig ntawm lub ncaj hlau magnetic teb muaj hauv daim ntawv ntawm ib tug kheej kheej nrog ib tug hlau nyob rau hauv nruab nrab. Tab sis lub nro cov kab tsim ib lub nplhaib.

Nyob rau hauv hluav taws xob hais tias magnetic teb yog siv feem ntau nyob rau hauv lub coils. Koj muaj peev xwm feem ntau hnov qhov qhia "cov magnetic teb ntawm lub solenoid." Xav txog tej yam muaj tus zoo tib ntsia thawv, thiab ib tug nyias hlau nyob rau hauv kev rho tawm. Uniformly winding ib tug hlau rau ib tug ntsia thawv, peb tau txais ib tug solenoid. Nyob rau hauv cov ntaub ntawv no, tus ntsia thawv muaj feem xyuam rau lub magnetic teb ntawm lub solenoid, tab sis qhov no yog ib lub npe rau ib tsab xov xwm nkaus. Nws yog ib qho tseem ceeb kom nkag siab txog raws nraim li cas yog meant by lub sij hawm. Yog hais tias koj tam sim no txuas lub kauj mus rau lub hwj chim qhov twg los, ces ib ncig ntawm lub magnetic teb tshwm sim.

solenoid magnetic teb lub zog yog ncaj qha proportional rau tus nqi ntawm cov inductance thiab cov square ntawm qhov tam sim no dhau los ntawm tus coils. Nyob rau hauv lem, tus inductance nyob rau hauv lub square ntawm tus xov tooj ntawm koj lem. Nws yuav tsum yuav mov winding qauv: qhov no yuav ua tau ib tug yooj yim cov ntaub ntawv ntawm ib txheej ntawm koj lem, raws li zoo raws li ib tug multilayer qauv qhov twg tam sim no cov kev taw qhia nyob rau hauv lub lem ntawm lub kho muab rau tag nrho cov zog. Solenoids siv nyob rau hauv trams circuits tej mechanisms, thiab lwm yam contactors.

Lub magnetic teb ntawm lub solenoid yog ib lub nplhaib extending los ntawm ib kawg ntawm lub winding thiab teej tug mus rau lwm yam. Hauv lub hwj chim kab yog tsis tu ncua los ntawm lub kauj, thiab yog faib nyob rau hauv ib tug dielectric nruab nrab los yog conductive tub ntxhais. Qhov tsim nyog tau: lub solenoid teb ntawm polarity. Kab los ntawm lub magnetic sab qaum teb ncej, thiab rov qab mus rau sab qab teb. Twv, lub magnetic teb ntawm lub solenoid nyob rau hauv lub polarity ntawm qhov tam sim no qhov chaw txuas mus rau lub xaus ntawm lub nyob ntawm tej. Lub sib nqus ntawm lub solenoid yog yuav luag tib yam li ib tug mus tas magnet. Qhov no pub rau cov kev siv ntawm ib tug solenoid li cov solenoid. Nyob rau hauv zus tau tej cov cranes yuav pom, nyob rau hauv uas tsis muaj nuv tso electromagnet tsav. Qhov no yog lub "tij laug" ntawm lub solenoid - winding rau cov tub ntxhais. Lub peculiarity ntawm electromagnets yog hais tias lub sib nqus muaj nyob tsuas yog thaum tam sim no ntws los ntawm cov windings.

Dhau li solenoids yog feem ntau siv toroids. Cov no yog cov tib hlau coils tab sis lub qhov txhab nyob rau hauv lub nqus cov tub ntxhais ntawm lub round daim ntawv. Raws li, qhov magnetic teb ntawm lub solenoid thiab cov toroid sib txawv. Lub ntsiab feature yog tias cov kab ntawm kev quab yuam ntawm cov magnetic teb yog faib nyob puag-kauj nyob rau hauv lub nqus Circuit Court, es sab nraum, raws li nyob rau hauv cov ntaub ntawv ntawm lub solenoid. Tag nrho cov no ua tim khawv rau lub siab dua efficiency ntawm lub coils rau lub nplhaib magnetically khoom. Impact: Lub toroidal transformers yog txhim khu kev qha thiab muaj qis losses tshaj lawv ib txwm counterparts.