GB906658A - Piezoelectric quartz device - Google Patents

Piezoelectric quartz device

Info

Publication number
GB906658A
GB906658A GB2367560A GB2367560A GB906658A GB 906658 A GB906658 A GB 906658A GB 2367560 A GB2367560 A GB 2367560A GB 2367560 A GB2367560 A GB 2367560A GB 906658 A GB906658 A GB 906658A
Authority
GB
United Kingdom
Prior art keywords
plate
electrodes
supported
crystal
july
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
GB2367560A
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.)
Ebauches SA
Original Assignee
Ebauches SA
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 Ebauches SA filed Critical Ebauches SA
Publication of GB906658A publication Critical patent/GB906658A/en
Expired 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
    • H03H9/05—Holders; Supports
    • H03H9/0504—Holders; Supports for bulk acoustic wave devices
    • H03H9/0528—Holders; Supports for bulk acoustic wave devices consisting of clips
    • 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
    • H03H9/17—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

Landscapes

  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • General Physics & Mathematics (AREA)
  • Piezo-Electric Or Mechanical Vibrators, Or Delay Or Filter Circuits (AREA)

Abstract

906,658. Piezo-electric crystals. EBAUCHES S.A. July 6, 1960 [July 9, 1959], No. 23675/60. Class 40 (8). A quartz crystal plate oscillating in a thickness-shear mode is excited by an electric field applied parallel to its major surfaces. The plate may be of AT cut and the field is applied in the XZ<SP>1</SP> plane. As shown, a bevelled quartz disc is provided with electrodes 2, 3 covering the whole of the crystal except in a gap 4 running parallel to the X axis. The plate is supported by conductive claws 9, 10, 11 at the ends of springs 6, 7, 8. These are supported from an insulated base 5 and provide conductive connections for the electrodes. In a modification, the plate 15, Fig. 5, is supported by claws 19, 20, &c. within an insulating annulus 25. The annulus also supports pairs 16, 17 and 16<SP>1</SP>, 17<SP>1</SP> of D-shaped electrodes spaced from the crystal plate. Opposite members of each pair of electrodes are connected by conductive bridges 22, 22<SP>1</SP>. It is stated that the invention results in an increase in the resistance of the crystal together with a much greater increase in its inductance.
GB2367560A 1959-07-09 1960-07-06 Piezoelectric quartz device Expired GB906658A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR799799A FR1238898A (en) 1959-07-09 1959-07-09 Piezoelectric quartz

Publications (1)

Publication Number Publication Date
GB906658A true GB906658A (en) 1962-09-26

Family

ID=8717015

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2367560A Expired GB906658A (en) 1959-07-09 1960-07-06 Piezoelectric quartz device

Country Status (4)

Country Link
CH (1) CH370713A (en)
DE (1) DE1121134B (en)
FR (1) FR1238898A (en)
GB (1) GB906658A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2125616A (en) * 1982-07-07 1984-03-07 Gen Electric Monolithic crystal filters

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2125616A (en) * 1982-07-07 1984-03-07 Gen Electric Monolithic crystal filters

Also Published As

Publication number Publication date
FR1238898A (en) 1960-08-19
CH370713A (en) 1963-08-30
CH725260A4 (en) 1963-03-29
DE1121134B (en) 1962-01-04

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