SU459002A3 - Microphone - Google Patents

Microphone

Info

Publication number
SU459002A3
SU459002A3 SU1716401A SU1716401A SU459002A3 SU 459002 A3 SU459002 A3 SU 459002A3 SU 1716401 A SU1716401 A SU 1716401A SU 1716401 A SU1716401 A SU 1716401A SU 459002 A3 SU459002 A3 SU 459002A3
Authority
SU
USSR - Soviet Union
Prior art keywords
microphone
metal plates
transducers
membrane
pair
Prior art date
Application number
SU1716401A
Other languages
Russian (ru)
Inventor
Кашинский Герт
Original Assignee
Институт Фюр Нахрихтентехник (Фирма)
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Институт Фюр Нахрихтентехник (Фирма) filed Critical Институт Фюр Нахрихтентехник (Фирма)
Application granted granted Critical
Publication of SU459002A3 publication Critical patent/SU459002A3/en

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/20—Arrangements for obtaining desired frequency or directional characteristics
    • H04R1/32—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only
    • H04R1/40—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only by combining a number of identical transducers
    • H04R1/406—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only by combining a number of identical transducers microphones
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R17/00—Piezoelectric transducers; Electrostrictive transducers
    • H04R17/02—Microphones

Landscapes

  • Health & Medical Sciences (AREA)
  • Otolaryngology (AREA)
  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Piezo-Electric Transducers For Audible Bands (AREA)
  • Electrostatic, Electromagnetic, Magneto- Strictive, And Variable-Resistance Transducers (AREA)

Description

Изобретение относитс  к электроакустическим преобразовател м, а именно к микрофонам . Известен микрофон, содержащий две выходные шины, соединенные с металлическими обкладкамн двух пар пьезоэлектрических преобразователей, сопр женных посредством других своих металлических обкладок с плоской мембраной из электропроводной фольги, укрепленной на корпусе из изол цианного материала . Однако такой микрофон не обеспечивает достаточной зан1иш,енности от звуковых помех. Цель изобретени  - создание микрофона с повышенной иомехозаш,иш,енностыо. Это дост1н-аетс  тем, что в предлагаемом микрофоне пьезоэлектрические преобразовател 1 каждой пары разменлены с противоположных сторон мембраны симметрично относительно ее плоскости и включены нротиво| )азно. На чертеже показан предлагаемый микрофон . Микрофон содержит две выходные шины 1 и 2 11 плоскую мембрану 3 из электропроводной фольги, укрепленную на корпусе 4 из изол ционного материала. Выходна  шина 1 соединена с металлическими обкладками 5 и 6 одной нары пр моугольных пьезоэлектрических преобразователей 7 и 8. Другие металлические обкладки 9 и 10 преобразователей 7 и 8 сопр жены с мембраной. Выходна  шина 2 св зана с металлическими обкладками 11 и 12 второй пары пр моугольных пьезоэлектрических преобразователей 13 и 14. Другие металлические обкладки 15 и 16 пьезоэлектрических преобразователей также сопр жены с лгембраной. Преобразователи 7 и 8 первой пары включены противофазно и расположены с противоположных сторон мембраны симметрично ее плоскости, пробразователи 13 и 14 второй пары размещены и включены аналогично . Конструкци  предлагаемого микрофона позвол ет в значительной степени увеличить его номехозан ищенность. Предмет изобретени  Микрофон, содержащнй две выходные шины , соединенные с металлическими обкладками двух пар пр моугольных пьезоэлектрических преобразователей, сопр женных посредством других своих металлических обкладок с плоской мембраной из электропроводной фольги, укрепленной на корпусе из изол ционного материала, отличающийс  те.м, что, с целью увеличени  помехозащищенности, ньезоэлектрические преобразователи каждой пары размещены с противоположных сторонThis invention relates to electroacoustic transducers, namely microphones. A microphone is known that contains two output buses connected to metal plates of two pairs of piezoelectric transducers, conjugated by means of their other metal plates to a flat membrane of electrically conductive foil mounted on an insulated material body. However, such a microphone does not provide sufficient knowledge of sound interference. The purpose of the invention is the creation of a microphone with a high iomehozash, ish, ennostyo. This is due to the fact that in the proposed microphone, the piezoelectric transducer 1 of each pair is exchanged from opposite sides of the membrane symmetrically with respect to its plane and turned on | ) useful. The drawing shows the proposed microphone. The microphone contains two output busbars 1 and 2 11 of a flat membrane 3 of electrically conductive foil, mounted on the housing 4 of an insulating material. The output bus 1 is connected to the metal plates 5 and 6 of one bunker of rectangular piezoelectric transducers 7 and 8. Other metal plates 9 and 10 of the transducers 7 and 8 are associated with the membrane. The output bus 2 is connected to the metal plates 11 and 12 of the second pair of rectangular piezoelectric transducers 13 and 14. Other metal plates 15 and 16 of the piezoelectric transducers are also coupled to the L-membrane. The transducers 7 and 8 of the first pair are turned on in antiphase and are located on opposite sides of the membrane symmetrically to its plane, the instructors 13 and 14 of the second pair are placed and turned on in the same way. The design of the proposed microphone makes it possible to significantly increase its nominal intensity. Subject of the Invention A microphone containing two output buses connected to the metal plates of two pairs of rectangular piezoelectric transducers, conjugated by means of their other metal plates to a flat membrane made of electrically conductive foil, mounted on an insulating material casing, which, In order to increase the noise immunity, the close-to-current transducers of each pair are placed on opposite sides

мембраны симметрично относительно ее плоскости и включены противофазно.membrane symmetrically with respect to its plane and included in antiphase.

7575

ItIt

SU1716401A 1970-11-23 1971-11-22 Microphone SU459002A3 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DD15147170 1970-11-23

Publications (1)

Publication Number Publication Date
SU459002A3 true SU459002A3 (en) 1975-01-30

Family

ID=5483184

Family Applications (1)

Application Number Title Priority Date Filing Date
SU1716401A SU459002A3 (en) 1970-11-23 1971-11-22 Microphone

Country Status (2)

Country Link
DE (1) DE2151830A1 (en)
SU (1) SU459002A3 (en)

Also Published As

Publication number Publication date
DE2151830A1 (en) 1972-05-31

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