CH612820B5 - Time standard for timepiece - Google Patents

Time standard for timepiece

Info

Publication number
CH612820B5
CH612820B5 CH952774A CH952774A CH612820B5 CH 612820 B5 CH612820 B5 CH 612820B5 CH 952774 A CH952774 A CH 952774A CH 952774 A CH952774 A CH 952774A CH 612820 B5 CH612820 B5 CH 612820B5
Authority
CH
Switzerland
Prior art keywords
vibrator
timepiece
electrodes
time standard
stud
Prior art date
Application number
CH952774A
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 filed Critical
Publication of CH612820B5 publication Critical patent/CH612820B5/en

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
    • H03H9/21—Crystal tuning forks
    • H03H9/215—Crystal tuning forks consisting of quartz
    • G—PHYSICS
    • G04—HOROLOGY
    • G04F—TIME-INTERVAL MEASURING
    • G04F5/00—Apparatus for producing preselected time intervals for use as timing standards
    • G04F5/04—Apparatus for producing preselected time intervals for use as timing standards using oscillators with electromechanical resonators producing electric oscillations or timing pulses
    • G04F5/06—Apparatus for producing preselected time intervals for use as timing standards using oscillators with electromechanical resonators producing electric oscillations or timing pulses using piezoelectric resonators
    • G04F5/063—Constructional details

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Acoustics & Sound (AREA)
  • Piezo-Electric Or Mechanical Vibrators, Or Delay Or Filter Circuits (AREA)
  • Electric Clocks (AREA)

Abstract

To achieve small dimensions, a stable and exact frequency and simple and inexpensive production, the vibrator (8) includes a structure which may be termed two-terminal. The geometrical arrangement of the electrodes (9, 10) on the two faces of the vibrator enable its branches to be vibrated in a direction parallel to their plane. The vibrator (8) is fixed to a support stud (17) made of an insulating material, such as ceramic. This stud is equipped with conductive coatings (18, 19) which are isolated from one another. Connection wires (20, 21) form the conductors of electrodes. <IMAGE>
CH952774A 1973-07-10 1974-07-10 Time standard for timepiece CH612820B5 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7773773A JPS5334875B2 (en) 1973-07-10 1973-07-10

Publications (1)

Publication Number Publication Date
CH612820B5 true CH612820B5 (en) 1979-08-31

Family

ID=13642206

Family Applications (3)

Application Number Title Priority Date Filing Date
CH952774A CH612820B5 (en) 1973-07-10 1974-07-10 Time standard for timepiece
CH952774D CH952774A4 (en) 1973-07-10 1974-07-10
CH1095377A CH617794A5 (en) 1973-07-10 1977-09-07 Quartz crystal vibrator

Family Applications After (2)

Application Number Title Priority Date Filing Date
CH952774D CH952774A4 (en) 1973-07-10 1974-07-10
CH1095377A CH617794A5 (en) 1973-07-10 1977-09-07 Quartz crystal vibrator

Country Status (5)

Country Link
JP (1) JPS5334875B2 (en)
CH (3) CH612820B5 (en)
GB (1) GB1444504A (en)
HK (1) HK52978A (en)
MY (1) MY7800425A (en)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5162775U (en) * 1974-11-13 1976-05-18
JPS5227291A (en) * 1975-08-26 1977-03-01 Seiko Epson Corp Piezo-oscillator
JPS52135283A (en) * 1976-05-07 1977-11-12 Seiko Epson Corp Tuning fork type crystal resonator
JPS5323589A (en) * 1976-08-18 1978-03-04 Seiko Epson Corp Crystal vibrator
JPS5851687B2 (en) * 1976-10-22 1983-11-17 セイコーインスツルメンツ株式会社 Tuning fork crystal oscillator
JPS5414176U (en) * 1977-06-01 1979-01-30
GB2125211A (en) * 1982-08-03 1984-02-29 Standard Telephones Cables Ltd Mechanical support of piezoelectric devices
JPS59167108A (en) * 1984-03-09 1984-09-20 Matsushita Electric Ind Co Ltd Piezoelectric porcelain filter
JPS61193492A (en) * 1985-02-21 1986-08-27 Mitsubishi Petrochem Co Ltd Piezoelectric element
GB2202989B (en) * 1987-04-02 1991-01-09 Stc Plc Crystal resonnator
JP3189231B2 (en) * 1991-01-30 2001-07-16 株式会社村田製作所 Semiconductor porcelain with positive resistance temperature characteristics
JP5348133B2 (en) * 2008-09-26 2013-11-20 株式会社大真空 Tuning fork type piezoelectric vibrating piece and tuning fork type piezoelectric vibrating device

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4516438Y1 (en) * 1968-02-19 1970-07-08
US3697789A (en) * 1970-06-23 1972-10-10 Citizen Watch Co Ltd Mechanical oscillator
JPS49131088A (en) * 1973-04-16 1974-12-16 Suwa Seikosha Kk

Also Published As

Publication number Publication date
CH617794A5 (en) 1980-06-13
CH952774A4 (en) 1977-08-15
HK52978A (en) 1978-09-22
MY7800425A (en) 1978-12-31
JPS5334875B2 (en) 1978-09-22
JPS5027492A (en) 1975-03-20
GB1444504A (en) 1976-08-04

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Legal Events

Date Code Title Description
PL Patent ceased