FR2252693B1 - - Google Patents

Info

Publication number
FR2252693B1
FR2252693B1 FR7437754A FR7437754A FR2252693B1 FR 2252693 B1 FR2252693 B1 FR 2252693B1 FR 7437754 A FR7437754 A FR 7437754A FR 7437754 A FR7437754 A FR 7437754A FR 2252693 B1 FR2252693 B1 FR 2252693B1
Authority
FR
France
Prior art keywords
support
resonator
nov
matching
quartz
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.)
Expired
Application number
FR7437754A
Other languages
French (fr)
Other versions
FR2252693A1 (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.)
Suwa Seikosha KK
Original Assignee
Suwa 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 Suwa Seikosha KK filed Critical Suwa Seikosha KK
Publication of FR2252693A1 publication Critical patent/FR2252693A1/fr
Application granted granted Critical
Publication of FR2252693B1 publication Critical patent/FR2252693B1/fr
Expired legal-status Critical Current

Links

Classifications

    • 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
    • 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

Abstract

1448651 Piezo-electric resonator SUWA SEIKOSHA KK 15 Nov 1974 [16 Nov 1973] 49497/74 Heading H1E A quartz resonator is mounted with planar interface on a support having expansivities matching in all directions in the interface in order to reduce risk of temperature fracture. Wristwatch timing fork resonator 15 with crystal cut selected for minimum temperature coefficient of frequency and with electrode pattern chosen for low dynamic impedance is bonded to matching quartz support 32 by conductive cement, connecting the under-electrodes (Fig. 6, not shown) to the metallized areas 18, 19 on the support, the upper electrodes being wired to terminals 22, 23.
FR7437754A 1973-11-16 1974-11-15 Expired FR2252693B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12900873A JPS5652490B2 (en) 1973-11-16 1973-11-16

Publications (2)

Publication Number Publication Date
FR2252693A1 FR2252693A1 (en) 1975-06-20
FR2252693B1 true FR2252693B1 (en) 1977-11-10

Family

ID=14998867

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7437754A Expired FR2252693B1 (en) 1973-11-16 1974-11-15

Country Status (7)

Country Link
JP (1) JPS5652490B2 (en)
CH (1) CH607881GA3 (en)
DE (1) DE2454321C3 (en)
FR (1) FR2252693B1 (en)
GB (1) GB1448651A (en)
HK (1) HK53278A (en)
MY (1) MY7800427A (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5323589A (en) * 1976-08-18 1978-03-04 Seiko Epson Corp Crystal vibrator
JPS5794225U (en) * 1980-11-29 1982-06-10
GB2125211A (en) * 1982-08-03 1984-02-29 Standard Telephones Cables Ltd Mechanical support of piezoelectric devices
DE3703241C1 (en) * 1987-02-04 1988-07-14 Heraeus Gmbh W C Quartz crystal with temperature-dependent resonance frequency
JP6558651B2 (en) 2017-12-06 2019-08-14 Toto株式会社 Remote control device
JP6558652B2 (en) 2017-12-06 2019-08-14 Toto株式会社 Remote control device
JP6551756B2 (en) 2017-12-06 2019-07-31 Toto株式会社 Remote control device and water system
JP7314562B2 (en) * 2019-03-25 2023-07-26 セイコーエプソン株式会社 Vibration devices, oscillators, electronic devices and moving objects

Also Published As

Publication number Publication date
CH607881GA3 (en) 1978-12-15
MY7800427A (en) 1978-12-31
HK53278A (en) 1978-09-22
JPS5081296A (en) 1975-07-01
DE2454321A1 (en) 1975-05-22
JPS5652490B2 (en) 1981-12-12
GB1448651A (en) 1976-09-08
DE2454321C3 (en) 1978-11-23
DE2454321B2 (en) 1978-04-06
FR2252693A1 (en) 1975-06-20
CH607881B (en)

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Legal Events

Date Code Title Description
ST Notification of lapse