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JPS55121728A - Crystal oscillator - Google Patents

Crystal oscillator

Info

Publication number
JPS55121728A
JPS55121728AJP2841879AJP2841879AJPS55121728AJP S55121728 AJPS55121728 AJP S55121728AJP 2841879 AJP2841879 AJP 2841879AJP 2841879 AJP2841879 AJP 2841879AJP S55121728 AJPS55121728 AJP 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 IncfiledCriticalSeiko Instruments Inc
Priority to JP2841879ApriorityCriticalpatent/JPS55121728A/en
Publication of JPS55121728ApublicationCriticalpatent/JPS55121728A/en
Pendinglegal-statusCriticalCurrent

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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.
JP2841879A1979-03-121979-03-12Crystal oscillatorPendingJPS55121728A (en)

Priority Applications (1)

Application NumberPriority DateFiling DateTitle
JP2841879AJPS55121728A (en)1979-03-121979-03-12Crystal oscillator

Applications Claiming Priority (1)

Application NumberPriority DateFiling DateTitle
JP2841879AJPS55121728A (en)1979-03-121979-03-12Crystal oscillator

Publications (1)

Publication NumberPublication Date
JPS55121728Atrue JPS55121728A (en)1980-09-19

Family

ID=12248099

Family Applications (1)

Application NumberTitlePriority DateFiling Date
JP2841879APendingJPS55121728A (en)1979-03-121979-03-12Crystal oscillator

Country Status (1)

CountryLink
JP (1)JPS55121728A (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication numberPriority datePublication dateAssigneeTitle
JPH01229513A (en)*1988-03-101989-09-13Seiko Electronic Components LtdOutline sliding crystal resonator
JPH01241210A (en)*1988-03-221989-09-26Seiko Electronic Components LtdProfile shear crystal resonator
JPH02207614A (en)*1989-02-081990-08-17Seiko Electronic Components LtdContour sliding crystal resonator
US5129983A (en)*1991-02-251992-07-14The Charles Stark Draper Laboratory, Inc.Method of fabrication of large area micromechanical devices
US5144184A (en)*1990-01-261992-09-01The Charles Stark Draper Laboratory, Inc.Micromechanical device with a trimmable resonant frequency structure and method of trimming same
US5203208A (en)*1991-04-291993-04-20The Charles Stark Draper LaboratorySymmetrical micromechanical gyroscope
US5216490A (en)*1988-01-131993-06-01Charles Stark Draper Laboratory, Inc.Bridge electrodes for microelectromechanical devices
US5408119A (en)*1990-10-171995-04-18The 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 numberPriority datePublication dateAssigneeTitle
US5216490A (en)*1988-01-131993-06-01Charles Stark Draper Laboratory, Inc.Bridge electrodes for microelectromechanical devices
JPH01229513A (en)*1988-03-101989-09-13Seiko Electronic Components LtdOutline sliding crystal resonator
JPH01241210A (en)*1988-03-221989-09-26Seiko Electronic Components LtdProfile shear crystal resonator
JPH02207614A (en)*1989-02-081990-08-17Seiko Electronic Components LtdContour sliding crystal resonator
US5144184A (en)*1990-01-261992-09-01The Charles Stark Draper Laboratory, Inc.Micromechanical device with a trimmable resonant frequency structure and method of trimming same
US5408119A (en)*1990-10-171995-04-18The Charles Stark Draper Laboratory, Inc.Monolithic micromechanical vibrating string accelerometer with trimmable resonant frequency
US5129983A (en)*1991-02-251992-07-14The Charles Stark Draper Laboratory, Inc.Method of fabrication of large area micromechanical devices
US5203208A (en)*1991-04-291993-04-20The Charles Stark Draper LaboratorySymmetrical micromechanical gyroscope

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