NO973701L - Piezoelektrisk lydgiver i miniatyrutförelse - Google Patents

Piezoelektrisk lydgiver i miniatyrutförelse

Info

Publication number
NO973701L
NO973701L NO973701A NO973701A NO973701L NO 973701 L NO973701 L NO 973701L NO 973701 A NO973701 A NO 973701A NO 973701 A NO973701 A NO 973701A NO 973701 L NO973701 L NO 973701L
Authority
NO
Norway
Prior art keywords
transducer
metal
piezoelectric
sound generator
modulus
Prior art date
Application number
NO973701A
Other languages
English (en)
Other versions
NO973701D0 (no
Inventor
Shuho Saito
Kazuaki Yamamoto
Hiroyuki Inami
Original Assignee
Murata Manufacturing Co
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 Murata Manufacturing Co filed Critical Murata Manufacturing Co
Publication of NO973701D0 publication Critical patent/NO973701D0/no
Publication of NO973701L publication Critical patent/NO973701L/no

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
    • H04R17/00—Piezoelectric transducers; Electrostrictive transducers

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Piezo-Electric Transducers For Audible Bands (AREA)
  • Telephone Set Structure (AREA)

Abstract

Piezoelektrisk transduktor (1) for elektro-akustisk bruk og utført spesielt med tanke på å redusere uheldig påvirkning av de metallterminaler (8, 9) som er ført fra utsiden av transduktorens hus (3) og inn til dens svingeelementer (2, 4, 5), når reduksjon av transduktorens størrelse er hensikten.De aktive elementer består av en piezoelektrisk membran (2 ) med en keramisk skive (5) og en pålagt metallplate (4), det hele oppspent inne i huset (3). Den ene av metallterminalene (8, 9) bør ha en elastisitetsmodul (X) som er mindre eller lik 100 (N/m), idet. X = bhE/4L.Her er E(N/m) Youngs modul for en metall-terminal (8, 9) i kontakt med et piezoelektrisk element, og b^ h og L (mm) er henholdsvis bredden, høyden og lengden av et rett parti (8b) av metallterminalen ( 8 ).
NO973701A 1996-08-13 1997-08-12 Piezoelektrisk lydgiver i miniatyrutförelse NO973701L (no)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP21389096 1996-08-13
JP23807596A JP3233041B2 (ja) 1996-08-13 1996-09-09 圧電型電気音響変換器

Publications (2)

Publication Number Publication Date
NO973701D0 NO973701D0 (no) 1997-08-12
NO973701L true NO973701L (no) 1998-02-16

Family

ID=26520035

Family Applications (1)

Application Number Title Priority Date Filing Date
NO973701A NO973701L (no) 1996-08-13 1997-08-12 Piezoelektrisk lydgiver i miniatyrutförelse

Country Status (5)

Country Link
US (1) US5955824A (no)
EP (1) EP0825799A3 (no)
JP (1) JP3233041B2 (no)
CN (1) CN1139299C (no)
NO (1) NO973701L (no)

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6445108B1 (en) * 1999-02-19 2002-09-03 Murata Manufacturing Co., Ltd. Piezoelectric acoustic component
DE10013673C2 (de) * 2000-03-20 2002-02-07 Siemens Audiologische Technik Mikromechanischer elektroakustischer Wandler
JP3501100B2 (ja) * 2000-05-15 2004-02-23 株式会社村田製作所 超音波送受波器
JP3706903B2 (ja) * 2000-08-10 2005-10-19 独立行政法人産業技術総合研究所 フレキシブル高感度セラミックスセンサー
JP2003078995A (ja) * 2001-09-03 2003-03-14 Taiyo Yuden Co Ltd 圧電音響装置
JP4037413B2 (ja) * 2005-01-13 2008-01-23 Ｔｄｋ株式会社 圧電サウンダ
EP2787747B1 (en) * 2011-11-29 2017-06-28 Sumitomo Riko Company Limited Polymer speaker
TW201330643A (zh) * 2012-01-05 2013-07-16 Chief Land Electronic Co Ltd 振動喇叭
TW201330642A (zh) * 2012-01-05 2013-07-16 Chief Land Electronic Co Ltd 振動喇叭
JP5578218B2 (ja) * 2012-09-25 2014-08-27 Ｔｄｋ株式会社 圧電サウンダ
CN103796120A (zh) * 2013-10-28 2014-05-14 广州市番禺奥迪威电子有限公司 一种压电式受话器
US9705069B2 (en) * 2013-10-31 2017-07-11 Seiko Epson Corporation Sensor device, force detecting device, robot, electronic component conveying apparatus, electronic component inspecting apparatus, and component machining apparatus
FR3022674B1 (fr) * 2014-06-18 2019-12-13 Iem Sarl Borne de detection comprenant un transducteur piezoelectrique fixe a une membrane liee a une structure de butee
JP6222185B2 (ja) * 2015-08-11 2017-11-01 Tdk株式会社 圧電発音体
US11950051B2 (en) * 2017-11-21 2024-04-02 Nitto Denko Corporation Piezoelectric speaker
JP7524658B2 (ja) * 2020-07-30 2024-07-30 セイコーエプソン株式会社 流体デバイス
JP7484534B2 (ja) * 2020-07-30 2024-05-16 セイコーエプソン株式会社 流体デバイス

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3849679A (en) * 1970-02-12 1974-11-19 Dynamics Corp Massa Div Electroacoustic transducer with controlled beam pattern
US3700938A (en) * 1971-12-15 1972-10-24 Bell Telephone Labor Inc Electroacoustic transducer with magnetic transducing element clamping
US4006371A (en) * 1973-03-19 1977-02-01 Whitewater Electronics, Inc. Electroacoustical transducer comprising piezoelectric element
US3855693A (en) * 1973-04-18 1974-12-24 Honeywell Inf Systems Method for assembling microelectronic apparatus
DE2532512A1 (de) * 1975-07-21 1977-02-10 Basf Ag Akkumulator
JPS57113697A (en) * 1981-01-05 1982-07-15 Murata Mfg Co Ltd Piezoelectric type speaker
JPS63146700A (ja) * 1986-12-10 1988-06-18 Matsushita Electric Ind Co Ltd 圧電発音体
JPH05111085A (ja) * 1991-10-17 1993-04-30 Matsushita Electric Ind Co Ltd セラミツクレシーバ
JP3238492B2 (ja) * 1992-10-19 2001-12-17 株式会社タイセー 圧電センサ
US5486682A (en) * 1992-10-21 1996-01-23 Acra Electric Corporation Heater assembly for swaged cartridge heater and method of manufacture
JP3521499B2 (ja) * 1993-11-26 2004-04-19 日本碍子株式会社 圧電／電歪膜型素子
JPH07203590A (ja) * 1993-12-28 1995-08-04 Matsushita Electric Ind Co Ltd 圧電受話器
JP2872056B2 (ja) * 1994-12-06 1999-03-17 日本電気株式会社 弾性表面波デバイス
JP3248404B2 (ja) * 1995-07-31 2002-01-21 株式会社村田製作所 圧電部品用端子

Also Published As

Publication number Publication date
US5955824A (en) 1999-09-21
CN1139299C (zh) 2004-02-18
EP0825799A3 (en) 2005-03-09
EP0825799A2 (en) 1998-02-25
JP3233041B2 (ja) 2001-11-26
NO973701D0 (no) 1997-08-12
CN1178443A (zh) 1998-04-08
JPH10112898A (ja) 1998-04-28

Similar Documents

Publication Publication Date Title
NO973701L (no) Piezoelektrisk lydgiver i miniatyrutförelse
CA2202509A1 (en) Talking trading cards
DE69603049D1 (de) Antennenreflektor aus ultraleichter, dünner Membran
DE60029258D1 (de) Faltbare, dünne intraokulare membran
DE19882417T1 (de) Nichtporöse, gasdurchlässige Membran
TR200100882T2 (tr) Hidrokoloid şekerleme
CA2420874A1 (en) Active ingredient combinations with insecticidal and acaricidal properties
TR199800572T2 (xx) Sukralfat i�eren farmas�tik kompozisyonlar.
WO2001076452A3 (en) An image sensor and an endoscope using the same
ZA993722B (en) Ceramic membrane reformer.
BR9811192A (pt) Composições de limpeza enzimática
DE60027606D1 (de) Polyphenolisches protein enthaltende bioadhäsive zusammensetzung
MXPA02012937A (es) Combinaciones de productos activos con propiedades insecticidas y acaricidas.
ATE306125T1 (de) Luftzelle ohne quecksilber
NO20021424D0 (no) Granuler basert på stivelse og laktose
WO2002082858A3 (en) Sound and vision system
ID26517A (id) Gen-gen protein membran sel denrit terisolasi
CA2370476A1 (en) Circuit breaker
DE69918713D1 (de) Sensor zur tonaufnahme
DE60021617D1 (de) Mikroporöse membran
ES2193105T3 (es) Caramelos duros de estabilidad mejorada al almacenaje.
ATE450984T1 (de) Mikrofonanordnung in einem hinter dem ohr tragbaren hörgerät
BR0213707A (pt) Dispositivo de áudio digital e, rádio para compartilhar áudio gravado digitalmente
DE69524796D1 (de) Antennenreflektor aus ultraleichter, dünner Membran
DE50108022D1 (de) Herbizide mittel

Legal Events

Date Code Title Description
FC2A Withdrawal, rejection or dismissal of laid open patent application