electret microphone wikipedia - EAS

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  1. An electret microphone is a type of electrostatic capacitor-based microphone, which eliminates the need for a polarizing power supply by using a permanently charged material.

    Electret microphone - Wikipedia

    en.wikipedia.org/wiki/Electret_microphone
    en.wikipedia.org/wiki/Electret_microphone
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    What is an electret microphone?
    Electret microphone. An electret microphone is a type of electrostatic capacitor-based microphone, which eliminates the need for a polarizing power supply by using a permanently charged material. An electret is a stable dielectric material with a permanently embedded static electric dipole moment (which,...

    Electret microphone - Wikipedia

    en.wikipedia.org/wiki/Electret_microphone
    搜尋: What is an electret microphone?
    What are the uses of microphones?
    Microphones are used in many applications such as telephones, hearing aids, public address systems for concert halls and public events, motion picture production, live and recorded audio engineering, sound recording, two-way radios, megaphones, radio and television broadcasting.

    Microphone - Wikipedia

    en.wikipedia.org/wiki/Microphone
    搜尋: What are the uses of microphones?
    Who invented the foil electret microphone?
    First patent on foil electret microphone by G. M. Sessler and J. E. West (pages 1 to 3) West was born on February 10, 1931, in Farmville, Prince Edward County, Virginia as the eldest of two children to Samuel Edward and Matilda West. He was born in his maternal grandfather's house because the local hospital would not admit African-Americans.

    James West (inventor) - Wikipedia

    en.wikipedia.org/wiki/James_West_(inventor)
    搜尋: Who invented the foil electret microphone?
    What is an electret?
    An electret is a ferroelectric material that has been permanently electrically charged or polarized. The name comes from electr ostatic and magn et; a static charge is embedded in an electret by the alignment of the static charges in the material, much the way a permanent magnet is made by aligning the magnetic domains in a piece of iron.

    Microphone - Wikipedia

    en.wikipedia.org/wiki/Microphone
    搜尋: What is an electret?
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    Electret microphone - Wikipedia

    https://en.wikipedia.org/wiki/Electret_microphone

    An electret microphone is a type of electrostatic capacitor-based microphone, which eliminates the need for a polarizing power supply by using a permanently charged material. An electret is a stable dielectric material with a permanently embedded static electric dipole moment (which, … 查看更多內容

    History

    Electret materials have been known since the 1920s and were proposed as condenser microphone elements several times, but they were considered impractical until the foil electret type was invented at 查看更多內容

    Types

    There are three major types of electret microphones, differing in the way the electret material is used:
    Foil-type or diaphragm-type A film of electret material is used as the diaphragm itself. This is the most common construction. It … 查看更多內容

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    External links

    • Powering microphones
    • Explanation of construction
    • Integrated Circuits for High Performance Electret Microphones — Audio Engineering Society Convention Paper 查看更多內容

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  4. Electret microphone - วิกิพีเดีย

    https://th.wikipedia.org/wiki/Electret_microphone

    Electret microphone เป็นประเภทของไมโครโฟนคอนเดนเซอร์ ซึ่งไม่จำเป็นต้องใช้ไฟเลี้ยง เนื่องจากวัสดุที่ใช้ได้มีการประจุไฟฟ้าอย่างถาวรแล้ว Electret ทำจากวัสดุที่ไม่นำไฟฟ้า และมีไฟฟ้าประจุที่วัสดุแล้ว ชื่อนี้มาจาก electrostatic และ magnet รวมกัน

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    • Elektretmikrofon – Wikipedia

      https://de.wikipedia.org/wiki/Elektretmikrofon

      Elektretmikrofon. Der Durchmesser dieser Elektret­mikrofonkapseln beträgt etwa 10 mm. Das Elektretmikrofon oder genauer Elektret-Kondensatormikrofon ist eine spezielle Bauart des …

      • 預估閱讀時間: 4 分鐘

      • Talk:Electret microphone - Wikipedia

        https://en.wikipedia.org/wiki/Talk:Electret_microphone

        Electret mics with plug-in power are unfortunately not addressed in this article. Please update! Thanks, Maikel ( talk ) 13:45, 11 November 2012 (UTC) I think 'Plug In Power' was (1990's?) …

      • Microphone - Wikipedia

        https://en.wikipedia.org/wiki/Microphone

        A microphone, colloquially called a mic or mike (/ m aɪ k /), is a transducer that converts sound into an electrical signal.Microphones are used in many applications such as telephones, …

      • 麦克风 - 维基百科，自由的百科全书

        https://zh.wikipedia.org/wiki/麦克风

        駐極體電容麥克風（Electret Condenser Microphone ）使用了可保有永久電荷的駐極體物質，因而不需再對電容器供電。但一般駐極體麥克風元件內建有電子電路以放大訊號，因此仍需以低 …

      • Micrófono de electreto - Wikipedia, la enciclopedia libre

        https://es.wikipedia.org/wiki/Micrófono_de_electreto

        Los micrófonos de electreto son robustos, por lo que soportan la manipulación, y además tienen como gran ventaja su reducido tamaño, por lo que el micro de electreto se usa en las …

      • Electret - Wikipedia

        https://en.wikipedia.org/wiki/Electret

        Electret. An electret (formed as a portmanteau of electr- from "electricity" and -et from "magnet") is a dielectric material that has a quasi-permanent electric charge or dipole polarisation. An …

      • James West (inventor) - Wikipedia

        https://en.wikipedia.org/wiki/James_West_(inventor)

        Fields. Physics, Electrical Engineering. Institutions. Bell Labs. Johns Hopkins University. James Edward Maceo West (born February 10, 1931) is an American inventor and acoustician. He …

      • Microphone — Wikipédia

        https://fr.wikipedia.org/wiki/Microphone

        Un microphone (souvent appelé micro par apocope) est un transducteur électroacoustique, c'est-à-dire un appareil capable de convertir un signal acoustique en signal électrique [1]. …



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