FR2339991B1 - - Google Patents

Info

Publication number
FR2339991B1
FR2339991B1 FR7702413A FR7702413A FR2339991B1 FR 2339991 B1 FR2339991 B1 FR 2339991B1 FR 7702413 A FR7702413 A FR 7702413A FR 7702413 A FR7702413 A FR 7702413A FR 2339991 B1 FR2339991 B1 FR 2339991B1
Authority
FR
France
Prior art keywords
vibrating portion
vibrator
support portion
frequency
vibrating
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
FR7702413A
Other languages
French (fr)
Other versions
FR2339991A1 (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.)
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
Priority claimed from JP863676A external-priority patent/JPS5291673A/en
Priority claimed from JP867176A external-priority patent/JPS5291685A/en
Priority claimed from JP2293776A external-priority patent/JPS52106286A/en
Priority claimed from JP2482876A external-priority patent/JPS52108785A/en
Application filed by Seiko Instruments Inc filed Critical Seiko Instruments Inc
Publication of FR2339991A1 publication Critical patent/FR2339991A1/en
Application granted granted Critical
Publication of FR2339991B1 publication Critical patent/FR2339991B1/fr
Granted 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
    • H03H9/46—Filters
    • H03H9/54—Filters comprising resonators of piezo-electric or electrostrictive material
    • H03H9/56—Monolithic crystal filters
    • 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
    • H03H9/02—Details
    • H03H9/05—Holders; Supports
    • H03H9/0595—Holders; Supports the holder support and resonator being formed in one body

Abstract

The piezoelectric crystal vibrator, operating by thickness shearing, comprises a vibrating portion (1) provided with a plurality of electrodes (A1, A2) and a support portion (3) formed jointly with this vibrating portion. The support portion is formed as a single body with the vibrating portion and it has the shape of a "haft" extending outwards, laterally, from the ends of the vibrating portion. This vibrator is of high accuracy in frequency, small bulk and can be manufactured easily. It applies in a particularly advantageous manner in an electronic watch in the guise of reference element of standard frequency.
FR7702413A 1976-01-29 1977-01-28 PIEZO-ELECTRIC CRYSTAL VIBRATOR OF THICKNESS SHEAR TYPE Granted FR2339991A1 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP863676A JPS5291673A (en) 1976-01-29 1976-01-29 Thickness sliding vibrator
JP867176A JPS5291685A (en) 1976-01-29 1976-01-29 Thickness slide crystal vibrator
JP2293776A JPS52106286A (en) 1976-03-03 1976-03-03 Thickness shear crystal oscillator
JP2482876A JPS52108785A (en) 1976-03-08 1976-03-08 Piezo crystal vibrator for perpendicular slip

Publications (2)

Publication Number Publication Date
FR2339991A1 FR2339991A1 (en) 1977-08-26
FR2339991B1 true FR2339991B1 (en) 1982-09-03

Family

ID=27454990

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7702413A Granted FR2339991A1 (en) 1976-01-29 1977-01-28 PIEZO-ELECTRIC CRYSTAL VIBRATOR OF THICKNESS SHEAR TYPE

Country Status (6)

Country Link
CH (1) CH625388GA3 (en)
DE (1) DE2703335A1 (en)
FR (1) FR2339991A1 (en)
GB (1) GB1573815A (en)
HK (1) HK51382A (en)
SG (1) SG44582G (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2847944A1 (en) * 1978-11-04 1980-05-14 Bosch Gmbh Robert Piezoelectric crystal resonator - with electrode positions and crystal shapes minimising second mode resonances by use of square crystal disc r mounted above base-plate
FR2441960A1 (en) * 1978-11-16 1980-06-13 Suisse Horlogerie PIEZOELECTRIC RESONATOR WORKING IN THICKNESS SHEAR
NL8202649A (en) * 1982-07-01 1984-02-01 Philips Nv TEMPERATURE SENSOR.

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE706099C (en) * 1934-12-11 1941-05-17 Telefunken Gmbh Piezoelectric crystal
US2306909A (en) * 1939-06-09 1942-12-29 Bell Telephone Labor Inc Piezoelectric crystal apparatus
DE2246511C3 (en) * 1971-09-22 1975-11-27 K.K. Suwa Seikosha, Tokio Crystal rotary transducer
GB1401042A (en) * 1972-05-30 1975-07-16 Suisse Horlogerie Quartz crystal resonator

Also Published As

Publication number Publication date
CH625388GA3 (en) 1981-09-30
HK51382A (en) 1982-12-03
DE2703335C2 (en) 1990-03-01
SG44582G (en) 1983-02-25
DE2703335A1 (en) 1977-08-04
CH625388B (en)
GB1573815A (en) 1980-08-28
FR2339991A1 (en) 1977-08-26

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Legal Events

Date Code Title Description
ST Notification of lapse