1. Ọkà okwu magnetik nwere electromagnet nwere isi ígwè na-ebugharị n'etiti ogwe abụọ nke magnet na-adịgide adịgide.Mgbe ọ nweghị ihe dị ugbu a na eriri igwe nke electromagnet, isi ihe na-ebugharị ígwè na-adọrọ mmasị site n'ọkwa ọkwa nke ogwe ndọta abụọ nke magnet na-adịgide adịgide ma nọgide na-eguzo n'etiti;Mgbe ihe dị ugbu a na-esi na eriri igwe na-agafe, isi igwe a na-ebugharị ebugharị na-eme magnetized wee ghọọ magnetik mmanya.Na mgbanwe nke ugbu a ntụziaka, polarity nke mmanya magnet na-agbanwekwa kwekọrọ ekwekọ, nke mere na mkpagharị ígwè isi na-agbagharị gburugburu fulcrum, na ịma jijiji nke ibughari ígwè isi na-ebunye site na cantilever na diaphragm (akwụkwọ cone) ka. mee ka ikuku na-ama jijiji.

2. Electrostatic ọkà okwu Ọ bụ ọkà okwu na-eji ike electrostatic agbakwunyere na capacitor efere.N'ihe banyere nhazi ya, a na-akpọkwa ya okwu okwu capacitor n'ihi na electrodes ndị dị mma na ndị na-adịghị mma na-emegide ibe ha.A na-eji ihe abụọ gbara ọkpụrụkpụ ma sie ike dị ka efere edoziri, nke nwere ike ibunye ụda site na efere ahụ, a na-ejikwa ihe dị mkpa na nke dị mfe mee efere etiti dị ka diaphragms (dị ka aluminom diaphragms).Dozie na ikesie ike gburugburu diaphragm ma dokwa ebe dị anya site na okporo osisi edoziri.Ọbụlagodi na nnukwu diaphragm, ọ gaghị adaba na osisi a kapịrị ọnụ.
3. Ndị na-ekwu okwu piezoelectric A na-akpọ ọkà okwu nke na-eji mmetụta piezoelectric na-agbanwe agbanwe nke ihe ndị dị na piezoelectric.Ihe na-eme na dielectric (dị ka quartz, potassium sodium tartrate na kristal ndị ọzọ) na-eme ka ọ dị elu n'okpuru mmetụta nke nrụgide, na-eme ka ọdịiche dị n'etiti njedebe abụọ nke elu, nke a na-akpọ "mmetụta piezoelectric".Mmetụta ya na-agbanwe agbanwe, ya bụ, nrụrụ na-agbanwe agbanwe nke dielectric etinye na ọkụ eletrik, a na-akpọ "mmetụta piezoelectric inverse" ma ọ bụ "electrostriction".