Qhov Tseem Ceeb Qhov txawv - Cov khoom sib nqus vs cov khoom tsis sib nqus
Qhov sib txawv tseem ceeb ntawm cov khoom sib nqus thiab cov khoom tsis sib nqus yog cov khoom sib nqus tau nyiam mus rau sab nraud magnetic teb vim lawv txoj kev sib nqus zoo ntawm cov khoom sib nqus thaum cov ntaub ntawv tsis sib nqus raug tshem tawm los ntawm sab nraud magnetic teb vim lawv random kev npaj ntawm magnetic domains. Txhua qhov teeb meem tuaj yeem muab faib ua ob pawg ua cov khoom sib nqus thiab cov khoom tsis sib nqus raws li lawv cov khoom sib nqus.
Cov khoom siv hlau nplaum yog dab tsi?
Cov khoom sib nqus yog cov khoom siv sib nqus sib nqus thiab nyiam mus rau qhov chaw sib nqus sab nraud. Cov ntaub ntawv no muaj zog txaus nyiam los ntawm cov hlau nplaum. Feem ntau ntawm cov khoom sib nqus tuaj yeem hloov mus rau hauv cov hlau nplaum ruaj khov los ntawm kev sib nqus. Cov ntaub ntawv no tau muab faib ua ob pawg raws li cov khoom siv hlau nplaum thiab cov khoom muag muag. Magnetically mos cov ntaub ntawv tuaj yeem yooj yim hlau nplaum, tab sis lawv cov hlau nplaum yog ib ntus. Cov khoom siv hlau nplaum tuaj yeem sib nqus tau siv cov hlau nplaum muaj zog, thiab lawv cov khoom sib nqus yog ruaj khov.
Tsis tas li ntawd, cov khoom sib nqus tau muab faib ua ntau pawg raws li cov khoom sib nqus.
- Cov ntaub ntawv Diamagnetic - tsis nyiam los ntawm qhov chaw sib nqus sab nraud
- Paramagnetic cov ntaub ntawv - nyiam los ntawm sab nraud magnetic teb
- Cov ntaub ntawv ferromagnetic - nyiam heev los ntawm sab nraud magnetic teb
- Ferrimagnetic cov ntaub ntawv - cov khoom sib nqus tau ua raws li cov lus qhia sib txawv tab sis lub sijhawm sib nqus tsis yog xoom
- Antiferromagnetic cov ntaub ntawv - cov khoom sib nqus tau ua raws li cov lus qhia sib txawv thiab lub sijhawm sib nqus yog xoom
Daim duab 01: Ib Daim Ntawv Pov Thawj Ua Haujlwm
Piv txwv rau cov khoom sib nqus muaj xws li ferrite (ntshiab hlau), neodymium (lub ntiaj teb tsis tshua muaj hlau), magnetite, hematite (ob leeg magnetite thiab hematite yog oxides ntawm hlau), cob alt, nickel, hlau thiab lawv cov hlau alloys, thiab lwm yam.
Cov Khoom Siv Tsis Sib Nqus yog dab tsi?
Cov khoom tsis sib nqus yog cov khoom siv uas tsis nyiam rau sab nraud magnetic teb. Qhov no txhais tau hais tias cov ntaub ntawv uas tsis yog-magnetic tsis tau attracted rau ib tug mus tas li hlau nplaum. Cov ntaub ntawv no qhia tsis tau lossis me ntsis teb rau ib qho chaw sib nqus. Qhov ntawd yog vim tias cov khoom sib nqus ntawm cov khoom siv tsis sib nqus tau teeb tsa nyob rau hauv ib qho random uas ua rau lub sij hawm sib nqus ntawm cov domains no raug tshem tawm.
Daim duab 02: Cov yas yog cov khoom tsis sib nqus
Cov piv txwv ntawm cov ntaub ntawv uas tsis yog hlau nplaum muaj xws li cov hlau thiab alloys xws li steel, cam khwb cia hlau, alloys ntawm tooj liab thiab txhuas, thiab lwm yam. Thiab kuj, cov ntaub ntawv polymer, ntoo thiab iav kuj yog cov khoom tsis sib nqus. Cov ntaub ntawv no yog siv los tsim ib feem ntawm qee qhov kev khiav hauj lwm uas tsis muaj kev cuam tshuam sib nqus. Thiab tseem, cov ntaub ntawv no yog siv los ua lub casing ntawm lub compass thiab ntau lwm yam.
Qhov txawv ntawm cov khoom sib nqus thiab cov khoom tsis sib nqus yog dab tsi?
Magnetic Materials vs Non Magnetic Materials |
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| cov khoom sib nqus yog cov khoom siv sib nqus sib nqus thiab nyiam mus rau qhov chaw sib nqus sab nraud. | Cov khoom tsis sib nqus yog cov khoom uas tsis nyiam rau sab nraud magnetic teb. |
| Sib nqus Domains | |
| Cov khoom sib nqus ntawm cov khoom sib nqus yog ua raws li cov kab sib txuas lossis cov kev sib txuam sib luag yog li lawv tuaj yeem teb rau qhov chaw sib nqus thaum lawv nyob rau hauv kev cuam tshuam ntawm sab nraud magnetic teb. | Cov khoom sib nqus ntawm cov khoom tsis sib nqus yog teem rau hauv ib qho random nyob rau hauv xws li ib txoj kev uas lub sij hawm sib nqus ntawm cov domains raug muab tso tseg. Yog li, lawv tsis teb rau qhov chaw sib nqus. |
| cov khoom siv sib nqus siv los ua cov hlau nplaum ruaj khov yog qhov chaw ntawm kev ua haujlwm uas yuav tsum muaj cov khoom sib nqus. | cov ntaub ntawv tsis muaj hlau nplaum yog siv los ua cov khoom ntawm qee qhov kev ua haujlwm uas tsis muaj qhov cuam tshuam sib nqus thiab lwm yam xws li cov ntaub ntawv ntawm lub ntsuas phoo. |
Summary – Cov khoom sib nqus vs cov khoom tsis sib nqus
cov khoom sib nqus yog nyiam rau cov hlau nplaum ruaj khov thaum cov khoom tsis sib nqus tsis yog. Qhov sib txawv ntawm cov khoom sib nqus thiab cov khoom tsis sib nqus yog tias cov khoom sib nqus tau nyiam mus rau qhov chaw sib nqus sab nraud vim lawv qhov sib txawv ntawm cov khoom sib nqus kom zoo thaum cov ntaub ntawv tsis sib nqus raug tshem tawm ntawm qhov chaw sib nqus sab nraud vim lawv qhov kev sib txawv ntawm cov khoom sib nqus.
