GB1122245A - Improvements in or relating to electro-mechanical resonators - Google Patents

Improvements in or relating to electro-mechanical resonators

Info

Publication number
GB1122245A
GB1122245A GB17832/66A GB1783266A GB1122245A GB 1122245 A GB1122245 A GB 1122245A GB 17832/66 A GB17832/66 A GB 17832/66A GB 1783266 A GB1783266 A GB 1783266A GB 1122245 A GB1122245 A GB 1122245A
Authority
GB
United Kingdom
Prior art keywords
piezo
electric
electro
relating
pick
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
Application number
GB17832/66A
Inventor
Denis William Thorn
Keith Henry Littlebury
Eric Davies
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 Electronics Ltd
Original Assignee
Marconi Co 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
Application filed by Marconi Co Ltd filed Critical Marconi Co Ltd
Priority to GB17832/66A priority Critical patent/GB1122245A/en
Priority to SE04677/67A priority patent/SE333588B/xx
Priority to US632088A priority patent/US3509387A/en
Priority to NL6705549A priority patent/NL6705549A/xx
Priority to FR103709A priority patent/FR1520142A/en
Priority to DE19671512319 priority patent/DE1512319B2/en
Publication of GB1122245A publication Critical patent/GB1122245A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H9/00—Networks comprising electromechanical or electro-acoustic devices; Electromechanical resonators
    • H03H9/46—Filters
    • H03H9/48—Coupling means therefor
    • H03H9/50—Mechanical coupling means
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H9/00—Networks comprising electromechanical or electro-acoustic devices; Electromechanical resonators
    • H03H9/46—Filters

Landscapes

  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Piezo-Electric Or Mechanical Vibrators, Or Delay Or Filter Circuits (AREA)
  • General Electrical Machinery Utilizing Piezoelectricity, Electrostriction Or Magnetostriction (AREA)
  • Apparatuses For Generation Of Mechanical Vibrations (AREA)

Abstract

1,122,245. Piezo-electric generators. MARCONI CO. Ltd. 23 March, 1967 [22 April, 1966], No. 17832/66. Heading H2A. An electromechanical resonator consists of a vibrating beam 1 supported on a rigid frame 2 and caused to vibrate by piezo-electric means 4 (Fig. 3) or electromagnetic means 9 (Fig. 4), and a piezo-electric pick-up 5 deposited or otherwise bonded to the structure. An amplifier 8 may be used to cause the device to act as a self-maintained oscillator. By placing the pick-up crystal in the position shown in Fig. 4, the effect of temperature is minimized. The piezo-electric elements may be formed directly on the device by the vapour deposition of cadmium sulphide or zinc sulphide.
GB17832/66A 1966-04-22 1966-04-22 Improvements in or relating to electro-mechanical resonators Expired GB1122245A (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
GB17832/66A GB1122245A (en) 1966-04-22 1966-04-22 Improvements in or relating to electro-mechanical resonators
SE04677/67A SE333588B (en) 1966-04-22 1967-04-04
US632088A US3509387A (en) 1966-04-22 1967-04-19 Electro-mechanical resonators
NL6705549A NL6705549A (en) 1966-04-22 1967-04-20
FR103709A FR1520142A (en) 1966-04-22 1967-04-21 Electromechanical resonators
DE19671512319 DE1512319B2 (en) 1966-04-22 1967-04-22 Electromechanical resonator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB17832/66A GB1122245A (en) 1966-04-22 1966-04-22 Improvements in or relating to electro-mechanical resonators

Publications (1)

Publication Number Publication Date
GB1122245A true GB1122245A (en) 1968-07-31

Family

ID=10101997

Family Applications (1)

Application Number Title Priority Date Filing Date
GB17832/66A Expired GB1122245A (en) 1966-04-22 1966-04-22 Improvements in or relating to electro-mechanical resonators

Country Status (5)

Country Link
US (1) US3509387A (en)
DE (1) DE1512319B2 (en)
GB (1) GB1122245A (en)
NL (1) NL6705549A (en)
SE (1) SE333588B (en)

Families Citing this family (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5538785A (en) * 1978-09-12 1980-03-18 Murata Mfg Co Ltd Voltage tuning fork
JPS58119217A (en) * 1982-01-07 1983-07-15 Murata Mfg Co Ltd Piezoelectric tuning fork
US4517486A (en) * 1984-02-21 1985-05-14 The United States Of America As Represented By The Secretary Of The Army Monolitic band-pass filter using piezoelectric cantilevers
US4869349A (en) * 1988-11-03 1989-09-26 Halliburton Logging Services, Inc. Flexcompressional acoustic transducer
DE69026765T2 (en) * 1989-07-11 1996-10-24 Ngk Insulators Ltd Piezoelectric / electrostrictive actuator containing a piezoelectric / electrostrictive film
JP2886588B2 (en) * 1989-07-11 1999-04-26 日本碍子株式会社 Piezoelectric / electrostrictive actuator
US5210455A (en) * 1990-07-26 1993-05-11 Ngk Insulators, Ltd. Piezoelectric/electrostrictive actuator having ceramic substrate having recess defining thin-walled portion
DE69223096T2 (en) * 1991-07-18 1998-05-28 Ngk Insulators Ltd Piezoelectric / electrostrictive element with a ceramic substrate made of stabilized zirconium dioxide
JP2665106B2 (en) * 1992-03-17 1997-10-22 日本碍子株式会社 Piezoelectric / electrostrictive film element
JP3106044B2 (en) * 1992-12-04 2000-11-06 日本碍子株式会社 Actuator and inkjet printhead using the same
JP3120260B2 (en) 1992-12-26 2000-12-25 日本碍子株式会社 Piezoelectric / electrostrictive film type element
US5381068A (en) * 1993-12-20 1995-01-10 General Electric Company Ultrasonic transducer with selectable center frequency
US5558298A (en) * 1994-12-05 1996-09-24 General Electric Company Active noise control of aircraft engine discrete tonal noise
JP3432974B2 (en) * 1995-10-13 2003-08-04 日本碍子株式会社 Piezoelectric / electrostrictive film type element
WO1997032346A1 (en) * 1996-02-27 1997-09-04 Quantum Corporation Glide head with thin-film piezoelectric transducer
JP5064384B2 (en) * 2005-05-31 2012-10-31 エモ・ラブズ・インコーポレーテッド Diaphragm membrane and support structure sensitive to environmental conditions
WO2007060768A1 (en) * 2005-11-24 2007-05-31 Murata Manufacturing Co., Ltd. Electroacoustic transducer
RU2475892C2 (en) * 2007-07-03 2013-02-20 Конинклейке Филипс Электроникс Н.В. Thin-film detector for presence detection
WO2009067669A1 (en) * 2007-11-21 2009-05-28 Emo Labs, Inc.. Wireless loudspeaker
US8189851B2 (en) 2009-03-06 2012-05-29 Emo Labs, Inc. Optically clear diaphragm for an acoustic transducer and method for making same
WO2011020100A1 (en) * 2009-08-14 2011-02-17 Emo Labs, Inc System to generate electrical signals for a loudspeaker
WO2014143927A2 (en) 2013-03-15 2014-09-18 Emo Labs, Inc. Acoustic transducers
USD733678S1 (en) 2013-12-27 2015-07-07 Emo Labs, Inc. Audio speaker
USD741835S1 (en) 2013-12-27 2015-10-27 Emo Labs, Inc. Speaker
USD748072S1 (en) 2014-03-14 2016-01-26 Emo Labs, Inc. Sound bar audio speaker

Family Cites Families (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2277008A (en) * 1938-10-24 1942-03-17 Ardenne Manfred Von Television projection tube
US2345491A (en) * 1941-11-25 1944-03-28 Bell Telephone Labor Inc Wave transmission network
US2661622A (en) * 1947-07-22 1953-12-08 Hartford Nat Bank & Trust Co Electric vibration pick-up
US2636135A (en) * 1947-10-29 1953-04-21 Bell Telephone Labor Inc Stress-coupled core and crystal transformer
US2695357A (en) * 1951-04-19 1954-11-23 Rca Corp Frequency conversion apparatus
US2738386A (en) * 1951-07-17 1956-03-13 Rca Corp Magnetostrictive amplifier
US2759102A (en) * 1952-09-23 1956-08-14 Rca Corp Mechanically stabilized oscillators
US2918634A (en) * 1954-11-30 1959-12-22 Collins Radio Co Increase of coupling to mechanical filter end discs to improve response
US2867780A (en) * 1956-10-29 1959-01-06 David S Potter Ceramic barium titanate electromechanical filter
US2981905A (en) * 1958-08-20 1961-04-25 Bell Telephone Labor Inc Electromechanical wave filter
US2945984A (en) * 1959-07-17 1960-07-19 Sylvania Electric Prod Piezoelectric device
US3091707A (en) * 1960-04-07 1963-05-28 Bell Telephone Labor Inc Piezoelectric devices utilizing zinc oxide
US3093758A (en) * 1960-04-13 1963-06-11 Bell Telephone Labor Inc Piezoelectric devices utilizing cadmium sulfide
US3131368A (en) * 1960-09-14 1964-04-28 Robert W Hart Signal selecting apparatus
GB1001714A (en) * 1961-08-22 1965-08-18 Toko Radio Coil Kenkyusho Kk Electromechanical filter
US3260969A (en) * 1963-06-28 1966-07-12 Gen Electric Apparatus for producing sonic vibrations at x-band microwave frequencies and higher
NL125813C (en) * 1963-11-02
US3290623A (en) * 1964-04-17 1966-12-06 Gen Electric Apparatus for the generation of phonons by piezoelectric effects
US3325743A (en) * 1965-12-23 1967-06-13 Zenith Radio Corp Bimorph flexural acoustic amplifier

Also Published As

Publication number Publication date
NL6705549A (en) 1967-10-23
SE333588B (en) 1971-03-22
US3509387A (en) 1970-04-28
DE1512319A1 (en) 1969-10-09
DE1512319B2 (en) 1970-10-01

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