GB2565159B - Electroacoustic transducer - Google Patents

Electroacoustic transducer Download PDF

Info

Publication number
GB2565159B
GB2565159B GB1713707.6A GB201713707A GB2565159B GB 2565159 B GB2565159 B GB 2565159B GB 201713707 A GB201713707 A GB 201713707A GB 2565159 B GB2565159 B GB 2565159B
Authority
GB
United Kingdom
Prior art keywords
electroacoustic transducer
electroacoustic
transducer
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.)
Active
Application number
GB1713707.6A
Other versions
GB2565159A (en
GB201713707D0 (en
Inventor
William John Kent Lionel
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.)
BAE Systems PLC
Original Assignee
BAE Systems PLC
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
Priority claimed from GB1711609.6A external-priority patent/GB2557387B/en
Application filed by BAE Systems PLC filed Critical BAE Systems PLC
Priority to EP17275149.7A priority Critical patent/EP3432596A1/en
Priority to GB1715467.5A priority patent/GB2564914B/en
Publication of GB201713707D0 publication Critical patent/GB201713707D0/en
Priority to PCT/GB2018/051957 priority patent/WO2019016515A1/en
Priority to US16/631,719 priority patent/US11800295B2/en
Priority to EP18739917.5A priority patent/EP3656135B1/en
Publication of GB2565159A publication Critical patent/GB2565159A/en
Publication of GB2565159B publication Critical patent/GB2565159B/en
Application granted granted Critical
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/44—Special adaptations for subaqueous use, e.g. for hydrophone
    • 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
    • B06B1/0607—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 multiple elements
    • B06B1/0611—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 multiple elements in a pile
    • B06B1/0618—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 multiple elements in a pile of piezo- and non-piezoelectric elements, e.g. 'Tonpilz'
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42—AMMUNITION; BLASTING
    • F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
    • F42B19/00—Marine torpedoes, e.g. launched by surface vessels or submarines; Sea mines having self-propulsion means
    • F42B19/01—Steering control
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Multimedia (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • General Engineering & Computer Science (AREA)
  • Transducers For Ultrasonic Waves (AREA)
GB1713707.6A 2016-12-08 2017-08-25 Electroacoustic transducer Active GB2565159B (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
EP17275149.7A EP3432596A1 (en) 2017-07-19 2017-09-25 Electroacoustic transducer array
GB1715467.5A GB2564914B (en) 2017-07-19 2017-09-25 Electroacoustic transducer array
EP18739917.5A EP3656135B1 (en) 2016-12-08 2018-07-10 Electroacoustic transducer
US16/631,719 US11800295B2 (en) 2016-12-08 2018-07-10 Electroacoustic transducer
PCT/GB2018/051957 WO2019016515A1 (en) 2016-12-08 2018-07-10 Electroacoustic transducer

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB1711609.6A GB2557387B (en) 2016-12-08 2017-07-19 Transducer
EP17275112.5A EP3334181A1 (en) 2016-12-08 2017-07-19 Transducer

Publications (3)

Publication Number Publication Date
GB201713707D0 GB201713707D0 (en) 2017-10-11
GB2565159A GB2565159A (en) 2019-02-06
GB2565159B true GB2565159B (en) 2021-12-01

Family

ID=60037158

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1713707.6A Active GB2565159B (en) 2016-12-08 2017-08-25 Electroacoustic transducer

Country Status (1)

Country Link
GB (1) GB2565159B (en)

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3891871A (en) * 1974-05-24 1975-06-24 Us Navy Pressure release hemispherical piezoelectric type transducer
US3946599A (en) * 1974-11-08 1976-03-30 Jacob Patt Liquid applicator for ultra-sonic transducer
EP0031614A1 (en) * 1979-12-17 1981-07-08 North American Philips Corporation Curved array of sequenced ultrasound transducers
US4982385A (en) * 1989-11-17 1991-01-01 Westinghouse Electric Corp. Acoustic decoupler for a sonar array
US5052393A (en) * 1988-09-16 1991-10-01 Hewlett-Packard Company Ultrasound system with improved coupling fluid
US5494038A (en) * 1995-04-25 1996-02-27 Abbott Laboratories Apparatus for ultrasound testing
US20150000408A1 (en) * 2012-03-20 2015-01-01 Alstom Technology Ltd Ultrasonic ndt sensor arrangement and method for inspecting surfaces of variable geometry of metal bodies
KR20160008280A (en) * 2014-07-14 2016-01-22 한국기계연구원 Air-coupled ultrasonic transducer using metamaterials
CN106650179A (en) * 2017-01-23 2017-05-10 东南大学 Method of designing Acoustic Metamaterials based on CMA-ES optimization algorithm

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3891871A (en) * 1974-05-24 1975-06-24 Us Navy Pressure release hemispherical piezoelectric type transducer
US3946599A (en) * 1974-11-08 1976-03-30 Jacob Patt Liquid applicator for ultra-sonic transducer
EP0031614A1 (en) * 1979-12-17 1981-07-08 North American Philips Corporation Curved array of sequenced ultrasound transducers
US5052393A (en) * 1988-09-16 1991-10-01 Hewlett-Packard Company Ultrasound system with improved coupling fluid
US4982385A (en) * 1989-11-17 1991-01-01 Westinghouse Electric Corp. Acoustic decoupler for a sonar array
US5494038A (en) * 1995-04-25 1996-02-27 Abbott Laboratories Apparatus for ultrasound testing
US20150000408A1 (en) * 2012-03-20 2015-01-01 Alstom Technology Ltd Ultrasonic ndt sensor arrangement and method for inspecting surfaces of variable geometry of metal bodies
KR20160008280A (en) * 2014-07-14 2016-01-22 한국기계연구원 Air-coupled ultrasonic transducer using metamaterials
CN106650179A (en) * 2017-01-23 2017-05-10 东南大学 Method of designing Acoustic Metamaterials based on CMA-ES optimization algorithm

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
LI et al, Broadband gradient impedance matching using an acoustic metamaterial for ultrasonic transducers, February 2017, Scientific Reports 7 - 42863, doi: 10.1038/srep42863. *
Ultrasonics, vol. 30, 1992, Amsterdam, NH Fletcher et al., "Multi-horn matching plate for ultrasonic transducers", pp. 67-75. *

Also Published As

Publication number Publication date
GB2565159A (en) 2019-02-06
GB201713707D0 (en) 2017-10-11

Similar Documents

Publication Publication Date Title
CA184601S (en) Loudspeaker
HK1225888A1 (en) Electroacoustic transducer
SG11202003643VA (en) Sound transducer arrangement
IL274312A (en) An orthomode transducer
GB201811828D0 (en) Loudspeaker unit
GB2557387B (en) Transducer
ZA202002944B (en) Transducer arrangement
EP3145214A4 (en) Electroacoustic transducer
EP3203758A4 (en) Electroacoustic transducer
CA188026S (en) Loudspeaker
EP3267694A4 (en) Electroacoustic transducer device
ZAA201801480S (en) Loudspeaker
EP3256265C0 (en) Acoustic transducer element
EP3177036A4 (en) Electroacoustic transducer
EP3163907A4 (en) Electroacoustic transducer
EP3509321A4 (en) Electroacoustic transducer device
GB2567748B (en) Transducer
GB2573888B (en) Loudspeaker
GB2564914B (en) Electroacoustic transducer array
AU201717538S (en) Loudspeaker
GB2561613B (en) Acoustic Sensor
GB201409547D0 (en) An electroacoustic transducer
EP3532210C0 (en) Acoustic transducer
AU201716805S (en) Loudspeaker
GB201517422D0 (en) An electroacoustic transducer