WO2005017965A3 - Ultrasonic air transducer arrays using polymer piezoelectric films and impedance matching structures for ultrasonic polymer transducer arrays - Google Patents

Ultrasonic air transducer arrays using polymer piezoelectric films and impedance matching structures for ultrasonic polymer transducer arrays 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
Application number
PCT/US2004/025189
Other languages
French (fr)
Other versions
WO2005017965A2 (en
Inventor
Minoru Toda
Original Assignee
Measurement Specialities 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 Specialities Inc filed Critical Measurement Specialities Inc
Publication of WO2005017965A2 publication Critical patent/WO2005017965A2/en
Publication of WO2005017965A3 publication Critical patent/WO2005017965A3/en

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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

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

Abstract

An ultrasonic transducer array structure (100) including: a first lattice structure (120) including a first plurality of arcuated (122) and clamping thin walls (126); a second lattice structure (133) including a second plurality of arcuated (134b) and clamping thin walls (136a); and a polymer piezoelectric film (110) held between the first (120) and second (133) lattice structures, the arcuated (122, 134b) and clamping thin walls (126, 136a) of the first (120) and second (133) lattice structures forming the film (110) into an array of curved transducer elements.
PCT/US2004/025189 2003-08-06 2004-08-05 Ultrasonic air transducer arrays using polymer piezoelectric films and impedance matching structures for ultrasonic polymer transducer arrays WO2005017965A2 (en)

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 (en) 2005-02-24
WO2005017965A3 true WO2005017965A3 (en) 2005-10-06

Family

ID=34193162

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2004/025189 WO2005017965A2 (en) 2003-08-06 2004-08-05 Ultrasonic air transducer arrays using polymer piezoelectric films and impedance matching structures for ultrasonic polymer transducer arrays

Country Status (1)

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WO (1) WO2005017965A2 (en)

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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
KR102524966B1 (en) 2015-02-20 2023-04-21 울트라햅틱스 아이피 엘티디 Algorithm improvements in haptic systems
EP3259653B1 (en) 2015-02-20 2019-04-24 Ultrahaptics Ip Ltd Method for producing an acoustic field in a haptic system
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
EP3729418A1 (en) 2017-12-22 2020-10-28 Ultrahaptics Ip Ltd Minimizing unwanted responses in haptic systems
BR112021000234A2 (en) 2018-05-02 2021-04-06 Ultrahaptics Ip Ltd STRUCTURE OF THE BLOCKING PLATE TO IMPROVE THE EFFICIENCY OF ACOUSTIC TRANSMISSION
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
EP3906462A2 (en) 2019-01-04 2021-11-10 Ultrahaptics IP Ltd Mid-air haptic textures
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
EP4042413A1 (en) 2019-10-13 2022-08-17 Ultraleap Limited Dynamic capping with virtual microphones
US11374586B2 (en) 2019-10-13 2022-06-28 Ultraleap Limited Reducing harmonic distortion by dithering
WO2021090028A1 (en) 2019-11-08 2021-05-14 Ultraleap Limited Tracking techniques in haptics 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
WO2022058738A1 (en) 2020-09-17 2022-03-24 Ultraleap Limited Ultrahapticons

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 (en) 2005-02-24

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