Piezoelectric Horn

Lub horn uas ua haujlwm los ntawm kev siv cov nyhuv piezoelectric rov qab ntawm cov ntaub ntawv piezoelectric hu ua piezoelectric horn. Qhov tshwm sim ntawm polarization ntawm cov khoom siv dielectric (xws li quartz, potassium sodium tartrate, thiab lwm yam crystals) nyob rau hauv siab, ua rau muaj peev xwm sib txawv ntawm ob qhov chaw, hu ua "piezoelectric effect". Nws cov nyhuv inverse, uas txhais tau hais tias lub dielectric muab tso rau hauv ib qho hluav taws xob teb undergoes elastic deformation, hu ua "inverse piezoelectric effect" los yog "electrostriction."