Electret okwu

Electret okwu bụ ụdị condenser microphones. N'ọnọdụ ka ukwuu, a microphones na-eji ọkachamara nka, ma o nwere ike ịbụ kwesịrị ekwesị n'ihi na amu amu nzube. A, capacitor electret microphones na-eji iji kwadebe a home ndekọ studio.

Na oge a na Russian ahịa nwere ike ịhụ nnukwu iche iche nke akụrụngwa. Otu n'ime ihe ndị dị ugbu a amụma nwere ike ịhọrọ electret okwu, ma ndị si mba ọzọ na anụ ụlọ mmepụta. Ọ bụrụ na anyị na-ekwu banyere ndị na-eri okwu, na microphones nke mba ọzọ mmepụta bụ ihe dị oké ọnụ karịa Russian. N'ọnọdụ ka ukwuu, a na-abawanye na ahịa ọ na-abụghị ihe n'onye ezi omume dị ka electret okwu Russian mmepụta bụ bụghị usụhọde na àgwà na-mba ọzọ ndị.

Ugbu microphones fọrọ superseded ụdị microphones enwe dị iche iche imewe. Ihe kpatara ya bụ na n'oge nke ukwuu ala na-eri electret okwu e ji elu pụrụ ịdabere, ala arọ na a ewepụghị ugboro omume.

Microphones nke ụdị ndị capacitors, nke ụfọdụ n'ime efere na-mere nke a nnọọ mkpa film agbatị n'elu a mgbanaka. Plastic film na-ụzarị ọkụ a doo nke electrons na banye n'ime ka a obere omimi, na dị ka a n'ihi ike a ohere ụgwọ na-enwe ike iji zọpụta a ogologo oge.

Ke ụdị insulators nwere aha "electret" - ya mere na okwu a na-akpọ ihe electret.

Ekemende karịrị na film bụ ya zuru ezu mkpa metal oyi akwa, nke na-eji dị ka otu n'ime electrodes. Dị ka ọzọ electrode sikwa metal cylinder, onye planar n'elu-emi odude nso film.

Ya oscillations nke na-kpatara now mmiri na ebili mmiri, ike nke na-eke ihe eletrik n'etiti electrodes. N'ihi na eziokwu na ike nke ugbu a bụ zuru ezu obere na mmepụta impedance esịmde gigaomov, nnyefe mgbaàmà N'ịbụ okwu, mere nnọọ ihe siri ike. N'ihi ya, iji dakọtara na ala impedance nke ampilifaya na a elu impedance okwu, ọ dị mkpa iji a kenha ogbo, nke bụ ndokwa na ubi (unipolar) transistor nke mere ndokwa na okwu Capsule ụlọ.

The ụlọ nke Capsule ka nke a metal ike nke na screening a okwu na kwekọrọ ogbo, na-echebe ya site na mpụga electric ubi.

A, Capsule ebe a bụ a ngwaọrụ onye ụlọ bụghị naanị a okwu electret onwe ya, ma na-kenha ogbo.

Iji ghọta ma adabara ihe electret okwu ma ọ bụ na a okwu ampilifaya, ọ bụ iji jikọọ na input Jack nke multimer. Ọ bụrụ na n'ihi na ngwaọrụ na-egosi 2-3 volts, nke a pụtara na ampilifaya bụ kwesịrị ekwesị maka na electret okwu. Ọtụtụ okwu amplifiers eji ụfọdụ kọmputa ụda kaadị ma ọ bụ wuru na-, nke na-gbakọọ ka a oge na-arụ ọrụ na electret okwu.

Ụkpụrụ nke ọrụ electret microphones dabeere na ike nke ụfọdụ ihe na-elu dielectric mgbe nile, na-agbanwe ha n'elu ụgwọ dị ka a n'ihi nke mmetụta nke ụda ife. Electret microphones nwere nnọọ elu-eguzogide, nke mere na ọ bụ omume na-jikọọ ha ihe ampilifaya na elu ọsọ ọsọ impedance.

Site imewe, ndị a microphones na-ekewa atọ ige: electret ihe onwunwe bụ na n'ihu ọnọdụ; Electret ihe onwunwe na-etinyere na-agbanwe akpụkpọ ahụ; electret bụ na azụ efere.

Iji ụbọchị, a ndú na mmepụta nke ọkachamara na ndekọ na ngwá bụ ụlọ ọrụ "Octave", onye microphones nwere impeccable aha.

"Octave" FEM - Series, nke na-agụnye ọtụtụ ụdị nke ọkachamara electret microphones, nke na-haziri maka dị iche iche na ọnọdụ nke iji. Akpan akpan ntị ga-akwụ ụgwọ iji ụlọ ọrụ ọhụrụ - a okwu, "Octave" FEM - 222, nke e mere maka ndekọ nzukọ.