GB9025626D0 - Piezo-electric oscillator - Google Patents

Piezo-electric oscillator

Info

Publication number
GB9025626D0
GB9025626D0 GB909025626A GB9025626A GB9025626D0 GB 9025626 D0 GB9025626 D0 GB 9025626D0 GB 909025626 A GB909025626 A GB 909025626A GB 9025626 A GB9025626 A GB 9025626A GB 9025626 D0 GB9025626 D0 GB 9025626D0
Authority
GB
United Kingdom
Prior art keywords
piezo
electric oscillator
oscillator
electric
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.)
Granted
Application number
GB909025626A
Other versions
GB2238907B (en
GB2238907A (en
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.)
Seikosha KK
Original Assignee
Seikosha KK
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 Seikosha KK filed Critical Seikosha KK
Publication of GB9025626D0 publication Critical patent/GB9025626D0/en
Publication of GB2238907A publication Critical patent/GB2238907A/en
Application granted granted Critical
Publication of GB2238907B publication Critical patent/GB2238907B/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • H03H9/02—Details
    • H03H9/125—Driving means, e.g. electrodes, coils
    • H03H9/13—Driving means, e.g. electrodes, coils for networks consisting of piezoelectric or electrostrictive materials
    • H03H9/132—Driving means, e.g. electrodes, coils for networks consisting of piezoelectric or electrostrictive materials characterized by a particular shape
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H9/00—Networks comprising electromechanical or electro-acoustic devices; Electromechanical resonators
    • H03H9/15—Constructional features of resonators consisting of piezoelectric or electrostrictive material
    • H03H9/17—Constructional features of resonators consisting of piezoelectric or electrostrictive material having a single resonator
    • H03H9/19—Constructional features of resonators consisting of piezoelectric or electrostrictive material having a single resonator consisting of quartz
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H9/00—Networks comprising electromechanical or electro-acoustic devices; Electromechanical resonators
    • H03H9/02—Details
    • H03H9/02007—Details of bulk acoustic wave devices
    • H03H9/02062—Details relating to the vibration mode
    • H03H9/0207—Details relating to the vibration mode the vibration mode being harmonic

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)
GB9025626A 1989-11-30 1990-11-26 Piezo-electric oscillator Expired - Lifetime GB2238907B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1311838A JP2813996B2 (en) 1989-11-30 1989-11-30 3rd overtone AT-cut crystal unit

Publications (3)

Publication Number Publication Date
GB9025626D0 true GB9025626D0 (en) 1991-01-09
GB2238907A GB2238907A (en) 1991-06-12
GB2238907B GB2238907B (en) 1993-05-26

Family

ID=18022010

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9025626A Expired - Lifetime GB2238907B (en) 1989-11-30 1990-11-26 Piezo-electric oscillator

Country Status (5)

Country Link
JP (1) JP2813996B2 (en)
KR (1) KR940005377B1 (en)
GB (1) GB2238907B (en)
MY (1) MY108578A (en)
SG (1) SG26350G (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE0300375D0 (en) * 2003-02-12 2003-02-12 Attana Ab Piezoelectric resonator
JP5104867B2 (en) * 2007-08-03 2012-12-19 株式会社大真空 Piezoelectric vibrator
CN108123694A (en) * 2018-01-03 2018-06-05 宁波大红鹰学院 A kind of piezoelectric thin film vibrator of Electrode Optimum Design

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB928955A (en) * 1960-11-08 1963-06-19 Gen Electric Co Ltd Improvements in or relating to electric filter networks
JPS5229908B2 (en) * 1971-11-17 1977-08-04
DE2641571B1 (en) * 1976-09-15 1977-06-08 Siemens Ag THICK SHEAR VIBRATORS USED AS OBSERVE QUARTZ
JPS54131894A (en) * 1978-04-05 1979-10-13 Citizen Watch Co Ltd Piezoelectric oscillator
JPS6013608B2 (en) * 1979-03-12 1985-04-08 株式会社精工舎 Thickness sliding piezoelectric vibrator
US4375604A (en) * 1981-02-27 1983-03-01 The United States Of America As Represented By The Secretary Of The Army Method of angle correcting doubly rotated crystal resonators
EP0680142A1 (en) * 1985-04-11 1995-11-02 Toyo Communication Equipment Co. Ltd. Piezoelectric resonators for overtone oscillations
JPS63284920A (en) * 1987-05-16 1988-11-22 Nippon Dempa Kogyo Co Ltd Piezoelectric oscillator

Also Published As

Publication number Publication date
KR910010839A (en) 1991-06-29
SG26350G (en) 1995-09-18
GB2238907B (en) 1993-05-26
JP2813996B2 (en) 1998-10-22
JPH03172011A (en) 1991-07-25
GB2238907A (en) 1991-06-12
MY108578A (en) 1996-10-31
KR940005377B1 (en) 1994-06-17

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Legal Events

Date Code Title Description
746 Register noted 'licences of right' (sect. 46/1977)

Effective date: 19950509

732E Amendments to the register in respect of changes of name or changes affecting rights (sect. 32/1977)
PE20 Patent expired after termination of 20 years

Expiry date: 20101125