Qhov sib txawv tseem ceeb ntawm magnetostriction thiab piezoelectric nyhuv yog tias cov nyhuv piezoelectric tuaj yeem ua rau kev hloov pauv hluav taws xob ncaj qha rau hauv lub zog siv tshuab, qhov piezoelectric effect tuaj yeem hloov lub zog hauv qhov sib nqus mus rau hauv lub zog txhua yam.
Magnetostriction yog cov cuab yeej ntawm cov khoom sib nqus uas tuaj yeem ua rau cov ntaub ntawv no hloov pauv lawv cov duab lossis qhov loj me thaum lub sijhawm sib nqus. Piezoelectric hais txog cov cuab yeej ntawm qee cov khoom siv uas tuaj yeem khaws cov nqi hluav taws xob thaum siv cov kev ntxhov siab.
Magnetostriction yog dab tsi?
Magnetostriction yog cov cuab yeej ntawm cov khoom sib nqus uas tuaj yeem ua rau cov ntaub ntawv no hloov pauv lawv cov duab lossis qhov loj me thaum lub sijhawm sib nqus. Feem ntau, cov hlau nplaum ntawm cov khoom muaj kev hloov pauv, uas tshwm sim vim yog siv cov hlau nplaum uas hloov cov magnetostriction lim kom txog thaum tus nqi saturation mus txog.
Daim duab 01: Ib qho Transducer Muaj Cov Khoom Siv Magnetostrictive
Qhov cuam tshuam ntawm magnetostriction ua rau lub zog poob uas tshwm sim vim kev sib txhuam cua sov hauv cov ferromagnetic cores. Tsis tas li ntawd, cov nyhuv no yog lub luag haujlwm rau lub suab humming qis uas los ntawm transformers. Qhov no yog vim li cas oscillating AC tam sim no yuav tsim ib tug hloov magnetic teb.
Feem ntau, cov khoom siv hlau nplaum muaj qhov chaw hu ua domains, txhua tus muaj cov hlau nplaum sib xws. Yog tias peb siv qhov chaw sib nqus, cov ciam teb ntawm cov thawj coj zoo li hloov pauv thaum lub domains tig. Ob qhov teebmeem no tuaj yeem ua rau muaj kev hloov pauv ntawm qhov loj ntawm cov khoom.
Piezoelectric Effect yog dab tsi?
Piezoelectric hais txog cov cuab yeej ntawm qee cov khoom siv uas tuaj yeem khaws cov nqi hluav taws xob thaum siv cov khoom siv dag zog. Hauv lwm lo lus, nws yog hais txog hluav taws xob uas tshwm sim los ntawm lub siab thiab latent cua sov. Lo lus no los ntawm Greek, qhov twg piezin txhais tau tias nyem los yog nias thiab elektron txhais tau hais tias amber (qhov chaw pib ntawm hluav taws xob). Cov cuab yeej no yog hu ua piezoelectricity, thiab cov ntaub ntawv uas qhia cov cuab yeej no suav nrog cov muaju, qee yam ceramics, thiab cov teeb meem lom neeg xws li pob txha, DNA, thiab ntau yam proteins.
Daim duab 02: Ib qho Piezoelectric Balance
Feem ntau, cov nyhuv piezoelectric tuaj yeem ua rau cov kab hluav taws xob sib cuam tshuam ntawm cov khoom siv hluav taws xob thiab hluav taws xob hauv cov ntaub ntawv crystalline tsis muaj qhov sib txawv. Ntxiv mus, cov nyhuv no yog thim rov qab raws li cov ntaub ntawv uas tuaj yeem pom cov nyhuv piezoelectric kuj tuaj yeem nthuav tawm qhov rov qab ntawm cov nyhuv (nws yog lub cim ntawm cov khoom siv hluav taws xob los ntawm kev siv hluav taws xob).
Qhov xwm txheej ntawm cov nyhuv piezoelectric zoo ib yam li lub sijhawm hluav taws xob dipole hauv cov khoom khib nyiab. Peb tuaj yeem xam tau yooj yim dipole ntom lossis polarization los ntawm kev suav cov dipole moments ib ntim ntawm crystallographic unit cell. Feem ntau, cov nyob sib ze dipoles zoo li nyob rau hauv cov cheeb tsam hu ua Weiss domains. Cov txheej txheem ntawm kev sib raug zoo no yog hu ua poling, qhov chaw muaj zog hluav taws xob siv thoob plaws cov ntaub ntawv ntawm qhov kub siab. Txawm li cas los xij, tag nrho cov ntaub ntawv piezoelectric tsis tuaj yeem ua tau.
Qhov txawv ntawm Magnetostriction thiab Piezoelectric Effect yog dab tsi?
Magnetostriction thiab piezoelectric nyhuv yog cov ntsiab lus tseem ceeb tshuaj. Qhov sib txawv tseem ceeb ntawm magnetostriction thiab cov nyhuv piezoelectric yog tias cov nyhuv piezoelectric tuaj yeem ua rau kev hloov pauv ntawm hluav taws xob hluav taws xob mus rau hauv lub zog siv hluav taws xob, qhov piezoelectric effect tuaj yeem hloov lub zog hauv qhov sib nqus mus rau hauv lub zog txhua yam..
Cov hauv qab no infographic nthuav tawm qhov sib txawv ntawm magnetostriction thiab piezoelectric nyhuv hauv daim ntawv tabular rau ib sab ntawm kev sib piv.
Summary – Magnetostriction vs Piezoelectric Effect
Magnetostriction yog cov cuab yeej ntawm cov khoom sib nqus uas tuaj yeem ua rau cov ntaub ntawv no hloov pauv lawv cov duab lossis qhov loj me thaum lub sijhawm sib nqus. Piezoelectric hais txog cov cuab yeej ntawm qee cov khoom siv uas cov ntaub ntawv no tuaj yeem khaws cov nqi hluav taws xob thaum siv cov khoom siv dag zog. Qhov sib txawv tseem ceeb ntawm magnetostriction thiab piezoelectric nyhuv yog tias cov nyhuv piezoelectric tuaj yeem ua rau kev hloov pauv ntawm hluav taws xob hluav taws xob mus rau hauv lub zog txhua yam, qhov piezoelectric effect tuaj yeem hloov lub zog hauv cov hlau nplaum rau hauv lub zog txhua yam.
