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GB2006520A - Piezo-electric resonator - Google Patents

Piezo-electric resonator

Info

Publication number
GB2006520A
GB2006520A GB7835718A GB7835718A GB2006520A GB 2006520 A GB2006520 A GB 2006520A GB 7835718 A GB7835718 A GB 7835718A GB 7835718 A GB7835718 A GB 7835718A GB 2006520 A GB2006520 A GB 2006520A
Authority
GB
United Kingdom
Prior art keywords
shear
resonator
modes
coupled
thickness
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.)
Granted
Application number
GB7835718A
Other versions
GB2006520B (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
Priority claimed from JP10748077A external-priority patent/JPS5440591A/en
Priority claimed from JP2567878A external-priority patent/JPS54118192A/en
Application filed by Suwa Seikosha KK filed Critical Suwa Seikosha KK
Publication of GB2006520A publication Critical patent/GB2006520A/en
Application granted granted Critical
Publication of GB2006520B publication Critical patent/GB2006520B/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 elements; Electromechanical resonators
    • H03H9/02—Details
    • H03H9/02007—Details of bulk acoustic wave devices
    • H03H9/02062—Details relating to the vibration mode
    • H03H9/0207—Details relating to the vibration mode the vibration mode being harmonic
    • 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 elements; 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

Landscapes

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

Abstract

In order to improve the resonance frequency-temperature characteristic of a resonator (51) for an electronic timepiece, the resonator (51) is arranged to have a plurality of different modes (52, 54) of vibration which are coupled to each other. As shown, a flexure mode (52) on the X'Y' plane is coupled to a torsional mode (54) about the central axis. Other specified couplings are thickness-shear/face-shear, thickness- shear/flexure, and two perpendicular longitudinal or flexural modes, and higher harmonics may be used. The required modes are achieved by appropriate crystal cutting angles and electrode arrangement. <IMAGE>
GB7835718A 1977-09-07 1978-09-06 Piezoelectric resonator Expired GB2006520B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP10748077A JPS5440591A (en) 1977-09-07 1977-09-07 Crystal vibrator
JP2567878A JPS54118192A (en) 1978-03-07 1978-03-07 Crystal oscillator

Publications (2)

Publication Number Publication Date
GB2006520A true GB2006520A (en) 1979-05-02
GB2006520B GB2006520B (en) 1982-06-30

Family

ID=26363334

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7835718A Expired GB2006520B (en) 1977-09-07 1978-09-06 Piezoelectric resonator

Country Status (1)

Country Link
GB (1) GB2006520B (en)

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0019632A4 (en) * 1978-05-23 1980-09-29 Suwa Seikosha Kk Quartz crystal resonator.
US4320320A (en) * 1978-12-01 1982-03-16 Kabushiki Kaisha Suwa Seikosha Coupled mode tuning fork type quartz crystal vibrator
DE3135102A1 (en) * 1980-09-08 1982-05-06 Kabushiki Kaisha Suwa Seikosha, Tokyo FASHION COUPLED QUARTZ TUNING FORK
US4382204A (en) * 1979-11-22 1983-05-03 Nihon Dempa Kogyo Co., Ltd. Tuning fork-shaped quartz oscillator
US4388548A (en) * 1980-01-17 1983-06-14 U.S. Philips Corporation Multiple mode piezoelectric resonator
GB2140970A (en) * 1983-04-04 1984-12-05 Seiko Instr & Electronics Tuning fork type piezo-electric resonator
US4498025A (en) * 1980-12-12 1985-02-05 Seiko Instruments & Electronics Ltd. Tuning fork
US4503353A (en) * 1982-07-14 1985-03-05 Centre Electronique Horloger S.A. Cut angles for tuning fork type quartz resonators
US4531073A (en) * 1983-05-31 1985-07-23 Ohaus Scale Corporation Piezoelectric crystal resonator with reduced impedance and sensitivity to change in humidity
EP1117017A1 (en) * 2000-01-10 2001-07-18 Eta SA Fabriques d'Ebauches Means for generating a signal having a frequency that is highly independent from temperature
US20110043080A1 (en) * 2004-10-26 2011-02-24 Koichi Hirama Complex resonance circuit and oscillation circuit using the same
US11070191B2 (en) 2019-08-22 2021-07-20 Statek Corporation Torsional mode quartz crystal device
US11070192B2 (en) 2019-08-22 2021-07-20 Statek Corporation Torsional mode quartz crystal device

Cited By (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0019632A4 (en) * 1978-05-23 1980-09-29 Suwa Seikosha Kk Quartz crystal resonator.
EP0019632A1 (en) * 1978-05-23 1980-12-10 Kabushiki Kaisha Suwa Seikosha Quartz crystal resonator
US4320320A (en) * 1978-12-01 1982-03-16 Kabushiki Kaisha Suwa Seikosha Coupled mode tuning fork type quartz crystal vibrator
US4382204A (en) * 1979-11-22 1983-05-03 Nihon Dempa Kogyo Co., Ltd. Tuning fork-shaped quartz oscillator
US4388548A (en) * 1980-01-17 1983-06-14 U.S. Philips Corporation Multiple mode piezoelectric resonator
DE3135102A1 (en) * 1980-09-08 1982-05-06 Kabushiki Kaisha Suwa Seikosha, Tokyo FASHION COUPLED QUARTZ TUNING FORK
US4453105A (en) * 1980-09-08 1984-06-05 Kabushiki Kaisha Suwa Seikosha Mode coupled quartz crystal tuning fork
US4498025A (en) * 1980-12-12 1985-02-05 Seiko Instruments & Electronics Ltd. Tuning fork
US4503353A (en) * 1982-07-14 1985-03-05 Centre Electronique Horloger S.A. Cut angles for tuning fork type quartz resonators
GB2140970A (en) * 1983-04-04 1984-12-05 Seiko Instr & Electronics Tuning fork type piezo-electric resonator
US4531073A (en) * 1983-05-31 1985-07-23 Ohaus Scale Corporation Piezoelectric crystal resonator with reduced impedance and sensitivity to change in humidity
EP1117017A1 (en) * 2000-01-10 2001-07-18 Eta SA Fabriques d'Ebauches Means for generating a signal having a frequency that is highly independent from temperature
WO2001052001A2 (en) * 2000-01-10 2001-07-19 Eta Sa Fabriques D'ebauches Device for producing a signal having a substantially temperature-independent frequency
WO2001052001A3 (en) * 2000-01-10 2001-12-20 Ebauchesfabrik Eta Ag Device for producing a signal having a substantially temperature-independent frequency
US6724266B2 (en) 2000-01-10 2004-04-20 Eta Sa Fabriques D'ebauches Device for producing a signal having a substantially temperature-independent frequency
US20110043080A1 (en) * 2004-10-26 2011-02-24 Koichi Hirama Complex resonance circuit and oscillation circuit using the same
US11070191B2 (en) 2019-08-22 2021-07-20 Statek Corporation Torsional mode quartz crystal device
US11070192B2 (en) 2019-08-22 2021-07-20 Statek Corporation Torsional mode quartz crystal device
US11641187B2 (en) 2019-08-22 2023-05-02 Statek Corporation Torsional mode quartz crystal device
US11658637B2 (en) 2019-08-22 2023-05-23 Statek Corporation Torsional mode quartz crystal device
US12047055B2 (en) 2019-08-22 2024-07-23 Statek Corporation Torsional mode quartz crystal device
US12074585B2 (en) 2019-08-22 2024-08-27 Statek Corporation Torsional mode quartz crystal device

Also Published As

Publication number Publication date
GB2006520B (en) 1982-06-30

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Legal Events

Date Code Title Description
PE20 Patent expired after termination of 20 years

Effective date: 19980905