JPS55133120A - Thickness-slip-bending quartz oscillator - Google Patents

Thickness-slip-bending quartz oscillator

Info

Publication number
JPS55133120A
JPS55133120A JP4015279A JP4015279A JPS55133120A JP S55133120 A JPS55133120 A JP S55133120A JP 4015279 A JP4015279 A JP 4015279A JP 4015279 A JP4015279 A JP 4015279A JP S55133120 A JPS55133120 A JP S55133120A
Authority
JP
Japan
Prior art keywords
thickness
slip
bending
oscillator
taking
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
JP4015279A
Other languages
Japanese (ja)
Inventor
Hirofumi Kawashima
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 JP4015279A priority Critical patent/JPS55133120A/en
Publication of JPS55133120A publication Critical patent/JPS55133120A/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
    • H03H9/02—Details
    • H03H9/02007—Details of bulk acoustic wave devices
    • H03H9/02157—Dimensional parameters, e.g. ratio between two dimension parameters, length, width or thickness
    • 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

Abstract

PURPOSE:To enable to obtain the oscillator of small size and excellent in frequency temperature characteristics, by selecting the ratio of diameter and thickness to the most suited value. CONSTITUTION:X,Y,Z are the cut-out-angle of the thickness-slip-bending quartz oscillator, respectively with the electric, mechanical and light axes of the quartz and the axes are turned by theta degrees by taking the X axis as the turning angle. The angle theta of AT plate 1 is normally selected to about 35 deg., and the disc 2 is obtained from the AT plate 1. Taking the diameter of the disc quartz 2 as d, and the thickness as t, and taking d/t as 5.0-13.7, pure slip bending oscillation is absent, and thickness slip bending movement coupled with the bending oscillation strongly with it is caused. When d/t is made smaller than this range, the secondary temperature coefficient is greater and it is difficult to obtain excellent frequency temperature characteristics. Further, when greater d/t, it is possible to reduce the secondary temperature coefficient, but it is not preferrable to be >13.7 as the oscillator for wrist watches from the standpoint of the size.
JP4015279A 1979-04-03 1979-04-03 Thickness-slip-bending quartz oscillator Pending JPS55133120A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4015279A JPS55133120A (en) 1979-04-03 1979-04-03 Thickness-slip-bending quartz oscillator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4015279A JPS55133120A (en) 1979-04-03 1979-04-03 Thickness-slip-bending quartz oscillator

Publications (1)

Publication Number Publication Date
JPS55133120A true JPS55133120A (en) 1980-10-16

Family

ID=12572785

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4015279A Pending JPS55133120A (en) 1979-04-03 1979-04-03 Thickness-slip-bending quartz oscillator

Country Status (1)

Country Link
JP (1) JPS55133120A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2584866A1 (en) * 1985-07-15 1987-01-16 Seikosha Kk PLANAR TYPE QUARTZ OSCILLATOR OPERATING IN TRANSVERSE MODE IN THICKNESS

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2584866A1 (en) * 1985-07-15 1987-01-16 Seikosha Kk PLANAR TYPE QUARTZ OSCILLATOR OPERATING IN TRANSVERSE MODE IN THICKNESS

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