Nhazi nke ụfọdụ amplifiers ọdịyo

N'okpuru ebe a, ị ga-ahụ nkọwa nke ụdị onye na-ekwu okwu na igwe okwu na nkewa ha dị ka ụkpụrụ nke ọrụ si dị.

Nkewa nke igwe okwu dịka ụkpụrụ nke ọrụ si dị.

Magnetoelectric (dị ike) - a na-etinye onye nduzi (coil magnetik), nke ọkụ eletrik na-esi na ya na-aga, na-etinye n'ime oghere magnetik. Mmekọrịta nke magnet na onye na-eduzi ya na ugbu a na-eme ka mmegharị nke onye na-eduzi ihe na-ejikọta akpụkpọ ahụ. A na-ejikọta eriri igwe ahụ nke ọma na diaphragm, a na-akwụsịkwa ihe ndị a niile n'ụzọ iji hụ na mmegharị axial nke eriri igwe dị na oghere magnet na-enweghị esemokwu megide magnet.

electromagnetic - Oge ịgba ọsọ dị ugbu a na-eme mkpọtụ na-emepụta oghere ndọta ọzọ. Ọ magnetize a ferromagnetic core ejikọrọ na diaphragm, na mma na mkpofu nke isi na-eme ka diaphragm maa jijiji.

Electrostatic - akpụkpọ anụ eletrọnịkị mere nke obere foil - inwe oyi akwa edobere n'otu akụkụ ma ọ bụ n'akụkụ abụọ ma ọ bụ ịbụ electret - na-emetụta electrodes abụọ gbawara agbawa dị n'akụkụ abụọ nke foil (n'otu electrode, a na-atụgharị akara ngosi 180 degrees na nkwanye ùgwù maka nke ọzọ), n'ihi nke ihe nkiri ahụ na-ama jijiji na oge na mgbaàmà.

magnetostrictive - oghere ndọta na-ebute mgbanwe na akụkụ nke ihe ferromagnetic (ihe magnetik). N'ihi nnukwu frequency eke eke nke ferromagnetic ọcha, ụdị ụda olu a na-eji na-emepụta ultrasound.

Piezoelectric - ọkụ eletrik na-eme ka mgbanwe dị na akụkụ nke ihe piezoelectric; eji na tweeters na ultrasonic ngwaọrụ.

Ionic (enweghị isi) - ụdị ọkà okwu diaphragm na-enweghị nke a na-arụ ọrụ diaphragm site na arc eletrik na-emepụta plasma.

Ụdị igwe okwu

Acid - agịga ejikọrọ na diaphragm na-agagharị na acid dilute. Kọntaktị (carbon) - mmepe nke igwe okwu acid nke ejiri carbon granules dochie acid nke na-agbanwe nguzogide ha n'okpuru nrụgide nke akpụkpọ ahụ na-eme na granules. A na-ejikarị ihe ngwọta dị otú ahụ eme ihe na ekwentị.

Piezoelectric – capacitor nke na-atụgharị mgbama ụda n'ime mgbama voltaji.

Dị ike (magnetoelectric) - mkpọtụ ikuku nke ebili mmiri na-emepụta na-akpali diaphragm dị gịrịgịrị na-agbanwe agbanwe yana eriri jikọtara ya na ebe ndọta siri ike nke magnet mepụtara. N'ihi ya, voltaji na-apụta na njedebe eriri igwe - ike electrodynamic, i.e. vibrations nke magnetik nke eriri igwe, nke a na-etinye n'etiti okporo osisi, na-eme ka ọkụ eletrik dị n'ime ya na ugboro ugboro kwekọrọ na ụda nke ebili mmiri ụda.

Igwe okwu ikuku ọgbara ọhụrụ

Capacitive (electrostatic) - Ụdị igwe okwu a nwere electrodes abụọ jikọtara na isi iyi voltaji mgbe niile. Otu n'ime ha anaghị emegharị, nke ọzọ bụ akpụkpọ ahụ nke ebili mmiri na-emetụta, na-eme ka ọ maa jijiji.

Capacitive electret - ihe dị iche iche nke igwe okwu condenser, nke ejiri electret mee diaphragm ma ọ bụ mkpuchi edozi, ya bụ. dielectric na mgbe nile eletrik polarization.

Nnukwu ugboro capacitive - gụnyere oscillator dị elu na usoro modulator symmetrical na demodulator. Mgbanwe nke ikike n'etiti electrodes nke igwe okwu na-eme ka njupụta nke akara RF, nke, mgbe demodulation gasịrị, a na-enweta akara ngosi dị ala (MW), nke kwekọrọ na mgbanwe nke nrụgide ụda na diaphragm.

Lesa - n'ime imewe a, ọkụ laser na-egosipụta site na elu na-ama jijiji wee daa ihe mmetụta foto nke onye nnata. Uru nke mgbama na-adabere na ọnọdụ nke beam. N'ihi ịdị n'otu nke eriri laser dị elu, enwere ike idobe akpụkpọ ahụ n'ebe dị anya site na onye na-ebufe osisi na onye nata ya.

eriri anya - ọkụ ọkụ na-agafe na eriri anya mbụ, mgbe ntụgharị uche site na etiti akpụkpọ ahụ, na-abanye na mmalite nke eriri anya nke abụọ. Mgbanwe dị na diaphragm na-ebute mgbanwe na ike ọkụ, nke a na-atụgharị ghọọ akara ọkụ eletrik.

Igwe okwu maka sistemu ikuku - isi ihe dị iche n'ichepụta igwe okwu ikuku bụ naanị n'ụzọ dị iche iche nke nnyefe mgbaàmà karịa na sistemụ wired. Kama eriri, a na-etinye onye na-ebufe n'ime akpa ahụ, ma ọ bụ modul dị iche iche nke a na-ejikọta na ngwá ọrụ ma ọ bụ nke onye na-egwu egwu na-ebu, na onye na-anata nke dị n'akụkụ njikwa ngwakọta. Ndị na-ebufe ndị a na-ejikarị na-arụ ọrụ n'ime usoro modulation FM na eriri UHF (470-950 MHz) ma ọ bụ VHF (170-240 MHz). Ekwesịrị ịtọ onye nnata n'otu ọwa dị ka igwe okwu.