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Cov nyhuv Piezoelectric
Thaum qee qhov dielectrics raug yuam kom deform hauv ib qho kev taw qhia, hluav taws xob tsub hluav taws xob tau tsim tawm rau qee qhov chaw, thiab thaum lub zog sab nraud tshem tawm, lub xeev tau rov qab los rau hauv lub xeev tsis ceev. Qhov tshwm sim no hu ua qhov ua tau zoo piezoelectric effect. Thaum hluav taws xob teb siv nyob rau hauv cov lus qhia polarization ntawm dielectric, lub dielectric yuav tsim cov tshuab deformation lossis cov tshuab ua kom muaj kev ntxhov siab nyob rau hauv ib qho kev taw qhia. Thaum cov hluav taws xob sab nraud tshem tawm, qhov deformation lossis kev nyuaj siab ploj. Qhov tshwm sim no yog hu ua qhov cuam tshuam piezoelectric effect.
2. Cov khoom noj Piezoelectric
Cov khoom hluav taws xob Piezoelectric sensors yog lub cev, lub zog ua kom muaj zog. Cov ntaub ntawv siv hluav taws xob piezoelectric ntau yog quartz muaju (SiO2) thiab hluavtaws piezoelectric ceramics.
Lub piezoelectric tas li ntawm piezoelectric ceramics yog ob peb zaug uas ntawm quartz muaju, thiab qhov rhiab heev yog qhov siab.
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