JPS55121728A - Crystal oscillator - Google Patents

Crystal oscillator

Info

Publication number
JPS55121728A
JPS55121728A JP2841879A JP2841879A JPS55121728A JP S55121728 A JPS55121728 A JP S55121728A JP 2841879 A JP2841879 A JP 2841879A JP 2841879 A JP2841879 A JP 2841879A JP S55121728 A JPS55121728 A JP S55121728A
Authority
JP
Japan
Prior art keywords
support part
crystal oscillator
cut crystal
consideration
found
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.)
Pending
Application number
JP2841879A
Other languages
Japanese (ja)
Inventor
Hirochika Sato
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.)
Seiko Instruments Inc
Original Assignee
Seiko Instruments 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 Seiko Instruments Inc filed Critical Seiko Instruments Inc
Priority to JP2841879A priority Critical patent/JPS55121728A/en
Publication of JPS55121728A publication Critical patent/JPS55121728A/en
Pending 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
    • H03H9/15—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

Landscapes

  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Piezo-Electric Or Mechanical Vibrators, Or Delay Or Filter Circuits (AREA)

Abstract

PURPOSE:To realize a small size and high accuracy for the GT-cut crystal oscillator by suppressing the vibration energy loss. CONSTITUTION:The consideration is given to the conditions under which the deviation amount becomes nearly zero at the support part for the GT-cut crystal oscillator. And thus it is found that the ratio between width W1 of the support part and width W0 of the crystal plate must be set larger than 0.75. Furthermore, it is found that the deviation amount is made zero according to the form of the support part and also based on the consideration through the finite element method. With such ideal support part, the supporting problem can be solved for the GT-cut crystal. Thus a small-size and high accuracy crystal oscillator can be obtained with about 0.8MHz-5MHz. In addition, the mass productivity can be increased owing to the structure capable of the unified formation.
JP2841879A 1979-03-12 1979-03-12 Crystal oscillator Pending JPS55121728A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2841879A JPS55121728A (en) 1979-03-12 1979-03-12 Crystal oscillator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2841879A JPS55121728A (en) 1979-03-12 1979-03-12 Crystal oscillator

Publications (1)

Publication Number Publication Date
JPS55121728A true JPS55121728A (en) 1980-09-19

Family

ID=12248099

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2841879A Pending JPS55121728A (en) 1979-03-12 1979-03-12 Crystal oscillator

Country Status (1)

Country Link
JP (1) JPS55121728A (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01229513A (en) * 1988-03-10 1989-09-13 Seiko Electronic Components Ltd Outline sliding crystal resonator
JPH01241210A (en) * 1988-03-22 1989-09-26 Seiko Electronic Components Ltd Profile shear crystal resonator
JPH02207614A (en) * 1989-02-08 1990-08-17 Seiko Electronic Components Ltd Contour sliding crystal resonator
US5129983A (en) * 1991-02-25 1992-07-14 The Charles Stark Draper Laboratory, Inc. Method of fabrication of large area micromechanical devices
US5144184A (en) * 1990-01-26 1992-09-01 The Charles Stark Draper Laboratory, Inc. Micromechanical device with a trimmable resonant frequency structure and method of trimming same
US5203208A (en) * 1991-04-29 1993-04-20 The Charles Stark Draper Laboratory Symmetrical micromechanical gyroscope
US5216490A (en) * 1988-01-13 1993-06-01 Charles Stark Draper Laboratory, Inc. Bridge electrodes for microelectromechanical devices
US5408119A (en) * 1990-10-17 1995-04-18 The Charles Stark Draper Laboratory, Inc. Monolithic micromechanical vibrating string accelerometer with trimmable resonant frequency

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5216490A (en) * 1988-01-13 1993-06-01 Charles Stark Draper Laboratory, Inc. Bridge electrodes for microelectromechanical devices
JPH01229513A (en) * 1988-03-10 1989-09-13 Seiko Electronic Components Ltd Outline sliding crystal resonator
JPH01241210A (en) * 1988-03-22 1989-09-26 Seiko Electronic Components Ltd Profile shear crystal resonator
JPH02207614A (en) * 1989-02-08 1990-08-17 Seiko Electronic Components Ltd Contour sliding crystal resonator
US5144184A (en) * 1990-01-26 1992-09-01 The Charles Stark Draper Laboratory, Inc. Micromechanical device with a trimmable resonant frequency structure and method of trimming same
US5408119A (en) * 1990-10-17 1995-04-18 The Charles Stark Draper Laboratory, Inc. Monolithic micromechanical vibrating string accelerometer with trimmable resonant frequency
US5129983A (en) * 1991-02-25 1992-07-14 The Charles Stark Draper Laboratory, Inc. Method of fabrication of large area micromechanical devices
US5203208A (en) * 1991-04-29 1993-04-20 The Charles Stark Draper Laboratory Symmetrical micromechanical gyroscope

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