Electrostrictive nyhuv
Cov nyhuv electrostrictive yog hais txog kev hloov pauv ntawm cov hluav taws xob dielectric hauv ib qho chaw hluav taws xob. Nws yog qhov cuam tshuam ntawm qhov tshwm sim ntawm piezoelectric. Qhov tshwm sim no tuaj yeem piav qhia raws li hauv qab no: Thaum dielectric muab tso rau hauv hluav taws xob teb, nws cov lwg me me polarized. Ua raws cov kev taw qhia ntawm lub xaim hluav taws xob, qhov ntsuas hluav taws xob zoo ntawm ib qho molecule txuas nrog qhov tsis zoo electrode ntawm lwm lub lev. Raws li qhov zoo thiab tsis zoo ncej nyiam sib, tag nrho cov dielectric tau cog lus nyob rau hauv cov kev taw qhia no kom txog rau thaum sab hauv elastic quab yuam thiab hluav taws xob sib nqus sib npaug. Yog tias ib qho hluav taws xob hloov tau nyob nruab nrab ntawm ob qhov kawg ntawm thaj chaw dielectric, thiab nws cov zaus zoo ib yam li lub ntuj zaus ntawm cov khoom, cov hloov kho tshuab yuav tshwm sim. Electrostriction muaj ntau cov ntawv thov hauv kev siv thev naus laus zis, xws li siv cov piezoelectric quartz los ua quartz moos thiab tsim hluav taws xob ultrasonic tsis muaj zog. Tsis muaj volumetric deformation piezoelectric effect, tab sis nws muaj zoo thickness deformation thiab ntev deformation piezoelectric effect.