KR102068270B1 - 임피던스 정합이 개선된 변환기 - Google Patents

임피던스 정합이 개선된 변환기 Download PDF

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Publication number
KR102068270B1
KR102068270B1 KR1020147032763A KR20147032763A KR102068270B1 KR 102068270 B1 KR102068270 B1 KR 102068270B1 KR 1020147032763 A KR1020147032763 A KR 1020147032763A KR 20147032763 A KR20147032763 A KR 20147032763A KR 102068270 B1 KR102068270 B1 KR 102068270B1
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South Korea
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piezoelectric
transducer
shore
hardness
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English (en)
Korean (ko)
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KR20150048666A (ko
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제임스 이스트
네일 존 해리스
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구글 엘엘씨
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B06—GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS IN GENERAL
    • B06B—METHODS OR APPARATUS FOR GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS OF INFRASONIC, SONIC, OR ULTRASONIC FREQUENCY, e.g. FOR PERFORMING MECHANICAL WORK IN GENERAL
    • B06B1/00—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency
    • B06B1/02—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy
    • B06B1/06—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy operating with piezoelectric effect or with electrostriction
    • B06B1/0603—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy operating with piezoelectric effect or with electrostriction using a piezoelectric bender, e.g. bimorph
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
    • G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
    • G10K11/004—Mounting transducers, e.g. provided with mechanical moving or orienting device
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
    • G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
    • G10K11/02—Mechanical acoustic impedances; Impedance matching, e.g. by horns; Acoustic resonators
    • 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
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10N—ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10N30/00—Piezoelectric or electrostrictive devices
    • H10N30/80—Constructional details
    • H10N30/88—Mounts; Supports; Enclosures; Casings
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R7/00—Diaphragms for electromechanical transducers; Cones
    • H04R7/02—Diaphragms for electromechanical transducers; Cones characterised by the construction
    • H04R7/04—Plane diaphragms
    • H04R7/045—Plane diaphragms using the distributed mode principle, i.e. whereby the acoustic radiation is emanated from uniformly distributed free bending wave vibration induced in a stiff panel and not from pistonic motion
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10N—ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10N30/00—Piezoelectric or electrostrictive devices
    • H10N30/20—Piezoelectric or electrostrictive devices with electrical input and mechanical output, e.g. functioning as actuators or vibrators
    • H10N30/204—Piezoelectric or electrostrictive devices with electrical input and mechanical output, e.g. functioning as actuators or vibrators using bending displacement, e.g. unimorph, bimorph or multimorph cantilever or membrane benders
    • H10N30/2041—Beam type
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10N—ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10N30/00—Piezoelectric or electrostrictive devices
    • H10N30/20—Piezoelectric or electrostrictive devices with electrical input and mechanical output, e.g. functioning as actuators or vibrators
    • H10N30/204—Piezoelectric or electrostrictive devices with electrical input and mechanical output, e.g. functioning as actuators or vibrators using bending displacement, e.g. unimorph, bimorph or multimorph cantilever or membrane benders
    • H10N30/2041—Beam type
    • H10N30/2042—Cantilevers, i.e. having one fixed end

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Mechanical Engineering (AREA)
  • Piezo-Electric Transducers For Audible Bands (AREA)
  • Transducers For Ultrasonic Waves (AREA)
KR1020147032763A 2012-04-23 2013-04-23 임피던스 정합이 개선된 변환기 Active KR102068270B1 (ko)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
GB1207045.4 2012-04-23
GBGB1207045.4A GB201207045D0 (en) 2012-04-23 2012-04-23 Transducers with improved impedance matching
PCT/GB2013/051028 WO2013160669A1 (en) 2012-04-23 2013-04-23 Transducers with improved impedance matching

Publications (2)

Publication Number Publication Date
KR20150048666A KR20150048666A (ko) 2015-05-07
KR102068270B1 true KR102068270B1 (ko) 2020-01-20

Family

ID=46261683

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1020147032763A Active KR102068270B1 (ko) 2012-04-23 2013-04-23 임피던스 정합이 개선된 변환기

Country Status (7)

Country Link
US (3) US20150243874A1 (enExample)
EP (1) EP2841213B1 (enExample)
JP (1) JP6293733B2 (enExample)
KR (1) KR102068270B1 (enExample)
CN (1) CN104602827B (enExample)
GB (1) GB201207045D0 (enExample)
WO (1) WO2013160669A1 (enExample)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB201207045D0 (en) * 2012-04-23 2012-06-06 Hiwave Technologies Uk Ltd Transducers with improved impedance matching
JP6524467B2 (ja) * 2015-11-06 2019-06-05 日本特殊陶業株式会社 圧電アクチュエータおよびその製造方法
US10356523B2 (en) 2017-12-13 2019-07-16 Nvf Tech Ltd Distributed mode loudspeaker actuator including patterned electrodes
US10476461B2 (en) * 2017-12-20 2019-11-12 Nvf Tech Ltd Active distributed mode actuator
US10477321B2 (en) 2018-03-05 2019-11-12 Google Llc Driving distributed mode loudspeaker actuator that includes patterned electrodes
US10648852B2 (en) * 2018-04-11 2020-05-12 Exo Imaging Inc. Imaging devices having piezoelectric transceivers
US10631072B2 (en) 2018-06-25 2020-04-21 Google Llc Actuator for distributed mode loudspeaker with extended damper and systems including the same
US10462574B1 (en) 2018-11-30 2019-10-29 Google Llc Reinforced actuators for distributed mode loudspeakers
US10848875B2 (en) * 2018-11-30 2020-11-24 Google Llc Reinforced actuators for distributed mode loudspeakers
CN113808560B (zh) * 2020-06-12 2024-08-02 香港科技大学 基于阻抗匹配的复合超材料的超薄宽频水下吸声器
DE102020121337A1 (de) * 2020-08-13 2022-02-17 Tdk Electronics Ag Piezoelektrischer Wandler und Verfahren zur Einstellung der elektromechanischen Eigenschaften eines piezoelektrischen Wandlers

Citations (3)

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JP2007505540A (ja) * 2003-09-10 2007-03-08 ニュー トランスデューサーズ リミテッド オーディオ装置
JP2008061081A (ja) * 2006-09-01 2008-03-13 Kenwood Corp 圧電スピーカ
JP2010528547A (ja) * 2007-05-31 2010-08-19 ニュー トランスデューサーズ リミテッド オーディオ装置

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US2326923A (en) * 1941-09-30 1943-08-17 Rca Corp Art of mounting piezoelectric crystals
US4736129A (en) * 1985-05-30 1988-04-05 Marcon Electronics Co., Ltd. Ultrasonic motor
US4642511A (en) * 1986-03-31 1987-02-10 Motorola, Inc. Edge-mounting configuration for at-strip resonators
JPH11164396A (ja) * 1997-09-25 1999-06-18 Matsushita Electric Ind Co Ltd 圧電スピーカおよびその製造方法
US6307302B1 (en) * 1999-07-23 2001-10-23 Measurement Specialities, Inc. Ultrasonic transducer having impedance matching layer
US6262517B1 (en) * 2000-02-11 2001-07-17 Materials Systems, Inc. Pressure resistant piezoelectric acoustic sensor
RU2003124631A (ru) * 2001-01-05 2005-02-27 Бьёрн А. Дж. АНГЕЛЬСЕН (NO) АНГЕЛЬСЕН Бьёрн А. Дж. (NO) Широкополосный преобразователь
JP2006352464A (ja) * 2005-06-15 2006-12-28 Nec Tokin Corp 音響振動発生素子
JP2010027500A (ja) * 2008-07-23 2010-02-04 Tdk Corp 有機ｅｌ表示装置及びその製造方法
US8006917B2 (en) * 2008-08-26 2011-08-30 General Electric Company Method and apparatus for reducing acoustic noise in a synthetic jet
EP2373057B1 (en) * 2008-12-26 2020-02-26 Panasonic Intellectual Property Management Co., Ltd. Piezoelectric speaker, piezoelectric audio device employing piezoelectric speaker, and sensor with alert device attached
JP5604096B2 (ja) * 2009-12-25 2014-10-08 東京計器株式会社 液圧システムの圧力保持機構
GB201207045D0 (en) * 2012-04-23 2012-06-06 Hiwave Technologies Uk Ltd Transducers with improved impedance matching
KR102125405B1 (ko) * 2018-08-29 2020-06-22 한국과학기술연구원 넓은 동작 주파수 범위를 갖는 자가 공진 조절 압전 에너지 하베스터
US11482659B2 (en) * 2018-09-26 2022-10-25 Apple Inc. Composite piezoelectric actuator

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Publication number Priority date Publication date Assignee Title
JP2007505540A (ja) * 2003-09-10 2007-03-08 ニュー トランスデューサーズ リミテッド オーディオ装置
JP2008061081A (ja) * 2006-09-01 2008-03-13 Kenwood Corp 圧電スピーカ
JP2010528547A (ja) * 2007-05-31 2010-08-19 ニュー トランスデューサーズ リミテッド オーディオ装置

Also Published As

Publication number Publication date
WO2013160669A1 (en) 2013-10-31
CN104602827B (zh) 2017-10-03
KR20150048666A (ko) 2015-05-07
US20180102471A1 (en) 2018-04-12
US10714673B2 (en) 2020-07-14
US20200321511A1 (en) 2020-10-08
JP6293733B2 (ja) 2018-03-14
US20150243874A1 (en) 2015-08-27
US11730061B2 (en) 2023-08-15
EP2841213B1 (en) 2017-02-01
EP2841213A1 (en) 2015-03-04
CN104602827A (zh) 2015-05-06
GB201207045D0 (en) 2012-06-06
JP2015520963A (ja) 2015-07-23

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