WO2011006277A8 - 一种采用叉指或螺旋电极的压电扬声器 - Google Patents

一种采用叉指或螺旋电极的压电扬声器 Download PDF

Info

Publication number
WO2011006277A8
WO2011006277A8 PCT/CN2009/000795 CN2009000795W WO2011006277A8 WO 2011006277 A8 WO2011006277 A8 WO 2011006277A8 CN 2009000795 W CN2009000795 W CN 2009000795W WO 2011006277 A8 WO2011006277 A8 WO 2011006277A8
Authority
WO
WIPO (PCT)
Prior art keywords
interdigital
electrode
spiral
vibration diaphragm
piezoelectric speaker
Prior art date
Application number
PCT/CN2009/000795
Other languages
English (en)
French (fr)
Other versions
WO2011006277A1 (zh
Inventor
褚祥诚
Original Assignee
清华大学
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 清华大学 filed Critical 清华大学
Priority to PCT/CN2009/000795 priority Critical patent/WO2011006277A1/zh
Publication of WO2011006277A1 publication Critical patent/WO2011006277A1/zh
Publication of WO2011006277A8 publication Critical patent/WO2011006277A8/zh

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
    • 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)
PCT/CN2009/000795 2009-07-14 2009-07-14 一种采用叉指或螺旋电极的压电扬声器 WO2011006277A1 (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/CN2009/000795 WO2011006277A1 (zh) 2009-07-14 2009-07-14 一种采用叉指或螺旋电极的压电扬声器

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2009/000795 WO2011006277A1 (zh) 2009-07-14 2009-07-14 一种采用叉指或螺旋电极的压电扬声器

Publications (2)

Publication Number Publication Date
WO2011006277A1 WO2011006277A1 (zh) 2011-01-20
WO2011006277A8 true WO2011006277A8 (zh) 2011-03-03

Family

ID=43448856

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2009/000795 WO2011006277A1 (zh) 2009-07-14 2009-07-14 一种采用叉指或螺旋电极的压电扬声器

Country Status (1)

Country Link
WO (1) WO2011006277A1 (zh)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102611967A (zh) * 2011-12-09 2012-07-25 张家港市玉同电子科技有限公司 双晶压电陶瓷片及由其制备的双晶压电陶瓷扬声器

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2583729B (en) * 2019-05-06 2021-05-12 Waves Audio Ltd Micro electrostatic speaker
CN111162749A (zh) * 2020-01-08 2020-05-15 武汉大学 一种新型谐振器结构
WO2022094490A1 (en) * 2020-10-30 2022-05-05 Resonant Inc. Transversely-excited film bulk acoustic resonator with spiral interdigitated transducer fingers

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH09163498A (ja) * 1995-10-06 1997-06-20 Murata Mfg Co Ltd 球体型圧電スピーカ
JP3820851B2 (ja) * 2000-07-13 2006-09-13 敏孝 丈井 圧電スピーカー
KR100632480B1 (ko) * 2004-11-18 2006-10-16 황경환 콘덴서 스피커
CN201248132Y (zh) * 2008-09-05 2009-05-27 西安康弘新材料科技有限公司 移动通讯用多层压电扬声器

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102611967A (zh) * 2011-12-09 2012-07-25 张家港市玉同电子科技有限公司 双晶压电陶瓷片及由其制备的双晶压电陶瓷扬声器
CN102611967B (zh) * 2011-12-09 2014-07-16 张家港市玉同电子科技有限公司 双晶压电陶瓷片及由其制备的双晶压电陶瓷扬声器

Also Published As

Publication number Publication date
WO2011006277A1 (zh) 2011-01-20

Similar Documents

Publication Publication Date Title
WO2009078184A1 (ja) 圧電型音響変換器
EP3879590A4 (en) Laminated piezoelectric element and electro-acoustic transducer
WO2013165705A3 (en) Ultra wide bandwidth transducer with dual electrode
WO2018178772A3 (en) High performance sealed-gap capacitive microphone
WO2007134051A3 (en) High frequency ultrasound transducers
EP2511702A3 (en) Electromechanical transducer and photoacoustic apparatus
EP2571071A3 (en) Transducer and transducer module
WO2012058123A3 (en) Electro-optic device with gap-coupled electrode
FI20106063A0 (fi) Akustisesti kytketty laajakaistainen ohutkalvo-BAW-suodatin
IN2014CN03799A (zh)
EP2012427A3 (en) Piezoelectric vibrating pieces and piezoelectric devices
MX2013002680A (es) Metodo de conduccion por impulso controlado de una barra flectora pzt apilada para radiacion acustica de dipolos.
EP2439844A3 (en) Bulk acoustic wave resonator, bulk acoustic wave filter and their corresponding methods of manufacture.
EP2182348A3 (en) Surface acoustic wave element, surface acoustic wave device and methods for manufacturing the same
WO2011006277A8 (zh) 一种采用叉指或螺旋电极的压电扬声器
WO2013022286A3 (ko) 압전 구동체를 이용한 음향변환장치
KR101765419B1 (ko) 압전 스피커 및 이의 제조방법
KR20140026947A (ko) 적층형 압전 스피커 장치
WO2009000922A8 (de) Elektrostatischer folienschallwandler und verfahren zu dessen herstellung
KR101500562B1 (ko) 압전 스피커
KR101517523B1 (ko) 압전 스피커
GB201121444D0 (en) Sound transducer with at least one piezo element
US9338556B2 (en) Electroacoustic transducer, manufacturing method thereof, and electronic device utilizing same
ATE447774T1 (de) Bleiakkumulator und zugehöriger separator
WO2013022287A3 (ko) 압전 구동체를 이용한 음향변환장치

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 09847202

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase in:

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 09847202

Country of ref document: EP

Kind code of ref document: A1