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WO2005017965A3 - Reseaux de transducteurs a air ultrasonores utilisant des films piezoelectriques polymeres et structures d'adaptation d'impedance pour reseaux de transducteurs polymeres ultrasonores - Google Patents

Reseaux de transducteurs a air ultrasonores utilisant des films piezoelectriques polymeres et structures d'adaptation d'impedance pour reseaux de transducteurs polymeres ultrasonores Download PDF

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Publication number
WO2005017965A3
WO2005017965A3 PCT/US2004/025189 US2004025189W WO2005017965A3 WO 2005017965 A3 WO2005017965 A3 WO 2005017965A3 US 2004025189 W US2004025189 W US 2004025189W WO 2005017965 A3 WO2005017965 A3 WO 2005017965A3
Authority
WO
WIPO (PCT)
Prior art keywords
transducer arrays
ultrasonic
polymer
impedance matching
piezoelectric films
Prior art date
Legal status (The legal status 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 status listed.)
Ceased
Application number
PCT/US2004/025189
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English (en)
Other versions
WO2005017965A2 (fr
Inventor
Minoru Toda
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Measurement Specialties Inc
Original Assignee
Measurement Specialties Inc
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 Measurement Specialties Inc filed Critical Measurement Specialties Inc
Publication of WO2005017965A2 publication Critical patent/WO2005017965A2/fr
Publication of WO2005017965A3 publication Critical patent/WO2005017965A3/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • 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
    • B06B1/0688—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 with foil-type piezoelectric elements, e.g. PVDF

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Transducers For Ultrasonic Waves (AREA)
  • Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)

Abstract

L'invention concerne une structure de réseau de transducteur ultrasonore comprenant : une première structure de réseau comprenant une première pluralité de parois minces de serrage et de parois minces arquées ; une seconde structure de réseau comprenant une seconde pluralité de parois minces de serrage et de parois minces arquées ; ainsi qu'un film piézoélectrique polymère retenu entre les première et seconde structures de réseau, les parois minces de serrage et les parois minces arquées des première et seconde structures de réseau formant le film en un réseau d'éléments de transducteurs incurvés.
PCT/US2004/025189 2003-08-06 2004-08-05 Reseaux de transducteurs a air ultrasonores utilisant des films piezoelectriques polymeres et structures d'adaptation d'impedance pour reseaux de transducteurs polymeres ultrasonores Ceased WO2005017965A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US49303503P 2003-08-06 2003-08-06
US60/493,035 2003-08-06

Publications (2)

Publication Number Publication Date
WO2005017965A2 WO2005017965A2 (fr) 2005-02-24
WO2005017965A3 true WO2005017965A3 (fr) 2005-10-06

Family

ID=34193162

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2004/025189 Ceased WO2005017965A2 (fr) 2003-08-06 2004-08-05 Reseaux de transducteurs a air ultrasonores utilisant des films piezoelectriques polymeres et structures d'adaptation d'impedance pour reseaux de transducteurs polymeres ultrasonores

Country Status (1)

Country Link
WO (1) WO2005017965A2 (fr)

Families Citing this family (28)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2513884B (en) 2013-05-08 2015-06-17 Univ Bristol Method and apparatus for producing an acoustic field
US9612658B2 (en) 2014-01-07 2017-04-04 Ultrahaptics Ip Ltd Method and apparatus for providing tactile sensations
GB2530036A (en) 2014-09-09 2016-03-16 Ultrahaptics Ltd Method and apparatus for modulating haptic feedback
CN107407969B (zh) 2015-02-20 2020-09-11 超级触觉资讯处理有限公司 操纵触觉场以产生所期用户感知的方法
CA2976319C (fr) 2015-02-20 2023-06-27 Ultrahaptics Ip Limited Ameliorations d'algorithme dans un systeme haptique
US10818162B2 (en) 2015-07-16 2020-10-27 Ultrahaptics Ip Ltd Calibration techniques in haptic systems
US11189140B2 (en) 2016-01-05 2021-11-30 Ultrahaptics Ip Ltd Calibration and detection techniques in haptic systems
US10531212B2 (en) 2016-06-17 2020-01-07 Ultrahaptics Ip Ltd. Acoustic transducers in haptic systems
US10268275B2 (en) 2016-08-03 2019-04-23 Ultrahaptics Ip Ltd Three-dimensional perceptions in haptic systems
US10755538B2 (en) 2016-08-09 2020-08-25 Ultrahaptics ilP LTD Metamaterials and acoustic lenses in haptic systems
US10943578B2 (en) 2016-12-13 2021-03-09 Ultrahaptics Ip Ltd Driving techniques for phased-array systems
US10497358B2 (en) 2016-12-23 2019-12-03 Ultrahaptics Ip Ltd Transducer driver
US11531395B2 (en) 2017-11-26 2022-12-20 Ultrahaptics Ip Ltd Haptic effects from focused acoustic fields
US11360546B2 (en) 2017-12-22 2022-06-14 Ultrahaptics Ip Ltd Tracking in haptic systems
US11704983B2 (en) 2017-12-22 2023-07-18 Ultrahaptics Ip Ltd Minimizing unwanted responses in haptic systems
KR20210002703A (ko) 2018-05-02 2021-01-08 울트라햅틱스 아이피 엘티디 개선된 음향 전송 효율을 위한 차단 플레이트 구조체
US11098951B2 (en) 2018-09-09 2021-08-24 Ultrahaptics Ip Ltd Ultrasonic-assisted liquid manipulation
US11378997B2 (en) 2018-10-12 2022-07-05 Ultrahaptics Ip Ltd Variable phase and frequency pulse-width modulation technique
US12373033B2 (en) 2019-01-04 2025-07-29 Ultrahaptics Ip Ltd Mid-air haptic textures
EP3906462B1 (fr) 2019-01-04 2025-06-18 Ultrahaptics IP Ltd Textures haptiques aériennes
US11842517B2 (en) 2019-04-12 2023-12-12 Ultrahaptics Ip Ltd Using iterative 3D-model fitting for domain adaptation of a hand-pose-estimation neural network
US11553295B2 (en) 2019-10-13 2023-01-10 Ultraleap Limited Dynamic capping with virtual microphones
US11374586B2 (en) 2019-10-13 2022-06-28 Ultraleap Limited Reducing harmonic distortion by dithering
US11169610B2 (en) 2019-11-08 2021-11-09 Ultraleap Limited Tracking techniques in haptic systems
US11715453B2 (en) 2019-12-25 2023-08-01 Ultraleap Limited Acoustic transducer structures
US11816267B2 (en) 2020-06-23 2023-11-14 Ultraleap Limited Features of airborne ultrasonic fields
US11886639B2 (en) 2020-09-17 2024-01-30 Ultraleap Limited Ultrahapticons
JP7612847B2 (ja) * 2021-04-28 2025-01-14 三井化学株式会社 高分子圧電性フィルム素子と、それを用いた蓄電デバイスおよび荷重検知デバイス

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4056742A (en) * 1976-04-30 1977-11-01 Tibbetts Industries, Inc. Transducer having piezoelectric film arranged with alternating curvatures
US4471258A (en) * 1980-11-07 1984-09-11 Hitachi, Ltd. Piezoelectric ceramic transducer
US5515341A (en) * 1993-09-14 1996-05-07 The Whitaker Corporation Proximity sensor utilizing polymer piezoelectric film
US5900552A (en) * 1997-03-28 1999-05-04 Ohmeda Inc. Inwardly directed wave mode ultrasonic transducer, gas analyzer, and method of use and manufacture
US20010033124A1 (en) * 2000-03-28 2001-10-25 Norris Elwood G. Horn array emitter
US6411014B1 (en) * 2000-05-09 2002-06-25 Measurement Specialties, Inc. Cylindrical transducer apparatus
US20020135272A1 (en) * 2001-01-02 2002-09-26 Minoru Toda Curved film electrostatic ultrasonic transducer
US6492762B1 (en) * 1999-03-22 2002-12-10 Transurgical, Inc. Ultrasonic transducer, transducer array, and fabrication method

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4056742A (en) * 1976-04-30 1977-11-01 Tibbetts Industries, Inc. Transducer having piezoelectric film arranged with alternating curvatures
US4471258A (en) * 1980-11-07 1984-09-11 Hitachi, Ltd. Piezoelectric ceramic transducer
US5515341A (en) * 1993-09-14 1996-05-07 The Whitaker Corporation Proximity sensor utilizing polymer piezoelectric film
US5900552A (en) * 1997-03-28 1999-05-04 Ohmeda Inc. Inwardly directed wave mode ultrasonic transducer, gas analyzer, and method of use and manufacture
US6492762B1 (en) * 1999-03-22 2002-12-10 Transurgical, Inc. Ultrasonic transducer, transducer array, and fabrication method
US20010033124A1 (en) * 2000-03-28 2001-10-25 Norris Elwood G. Horn array emitter
US6411014B1 (en) * 2000-05-09 2002-06-25 Measurement Specialties, Inc. Cylindrical transducer apparatus
US20020135272A1 (en) * 2001-01-02 2002-09-26 Minoru Toda Curved film electrostatic ultrasonic transducer

Also Published As

Publication number Publication date
WO2005017965A2 (fr) 2005-02-24

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