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GB2260059B - Acoustic transducer - Google Patents

Acoustic transducer

Info

Publication number
GB2260059B
GB2260059B GB9220403A GB9220403A GB2260059B GB 2260059 B GB2260059 B GB 2260059B GB 9220403 A GB9220403 A GB 9220403A GB 9220403 A GB9220403 A GB 9220403A GB 2260059 B GB2260059 B GB 2260059B
Authority
GB
United Kingdom
Prior art keywords
acoustic transducer
acoustic
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.)
Expired - Lifetime
Application number
GB9220403A
Other versions
GB9220403D0 (en
GB2260059A (en
Inventor
William John Brown
Henry Thomas Viuhko
Bogdan Cherek
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.)
Siemens Canada Ltd
Federal Industries Industrial Group Inc
Original Assignee
Federal Industries Industrial Group Inc
Milltronics Ltd
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 GB919120580A external-priority patent/GB9120580D0/en
Application filed by Federal Industries Industrial Group Inc, Milltronics Ltd filed Critical Federal Industries Industrial Group Inc
Priority to GB9220403A priority Critical patent/GB2260059B/en
Publication of GB9220403D0 publication Critical patent/GB9220403D0/en
Publication of GB2260059A publication Critical patent/GB2260059A/en
Application granted granted Critical
Publication of GB2260059B publication Critical patent/GB2260059B/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01H—MEASUREMENT OF MECHANICAL VIBRATIONS OR ULTRASONIC, SONIC OR INFRASONIC WAVES
    • G01H11/00—Measuring mechanical vibrations or ultrasonic, sonic or infrasonic waves by detecting changes in electric or magnetic properties
    • G01H11/06—Measuring mechanical vibrations or ultrasonic, sonic or infrasonic waves by detecting changes in electric or magnetic properties by electric means
    • G01H11/08—Measuring mechanical vibrations or ultrasonic, sonic or infrasonic waves by detecting changes in electric or magnetic properties by electric means using piezoelectric devices
    • 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
    • B06B1/0644—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 single piezoelectric element
    • B06B1/0662—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 single piezoelectric element with an electrode on the sensitive surface
    • B06B1/0681—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 single piezoelectric element with an electrode on the sensitive surface and a damping structure

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Transducers For Ultrasonic Waves (AREA)
GB9220403A 1991-09-27 1992-09-28 Acoustic transducer Expired - Lifetime GB2260059B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB9220403A GB2260059B (en) 1991-09-27 1992-09-28 Acoustic transducer

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB919120580A GB9120580D0 (en) 1991-09-27 1991-09-27 Acoustic transducer
GB9220403A GB2260059B (en) 1991-09-27 1992-09-28 Acoustic transducer

Publications (3)

Publication Number Publication Date
GB9220403D0 GB9220403D0 (en) 1992-11-11
GB2260059A GB2260059A (en) 1993-03-31
GB2260059B true GB2260059B (en) 1995-04-12

Family

ID=26299597

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9220403A Expired - Lifetime GB2260059B (en) 1991-09-27 1992-09-28 Acoustic transducer

Country Status (1)

Country Link
GB (1) GB2260059B (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5719824A (en) * 1996-05-07 1998-02-17 Airmar Technology Corp. Transducer assembly with acoustic damping
GB2330724B (en) * 1997-10-24 2002-01-16 Federal Ind Ind Group Inc Method of manufacturing an electro-acoustic transducer
GB2336967A (en) * 1998-05-01 1999-11-03 Federal Ind Ind Group Inc Piezoelectric transducer made from preformed mouldings of acoustic material around the vibrating element

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1423061A (en) * 1972-06-20 1976-01-28 Westinghouse Electric Corp Acoustic signal sensing arrangement

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1423061A (en) * 1972-06-20 1976-01-28 Westinghouse Electric Corp Acoustic signal sensing arrangement

Also Published As

Publication number Publication date
GB9220403D0 (en) 1992-11-11
GB2260059A (en) 1993-03-31

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Legal Events

Date Code Title Description
732E Amendments to the register in respect of changes of name or changes affecting rights (sect. 32/1977)
732E Amendments to the register in respect of changes of name or changes affecting rights (sect. 32/1977)
732E Amendments to the register in respect of changes of name or changes affecting rights (sect. 32/1977)
732E Amendments to the register in respect of changes of name or changes affecting rights (sect. 32/1977)

Free format text: REGISTERED BETWEEN 20120301 AND 20120307

PE20 Patent expired after termination of 20 years

Expiry date: 20120927