GB2042796B - Piezoelectric vibrator - Google Patents

Piezoelectric vibrator

Info

Publication number
GB2042796B
GB2042796B GB7939802A GB7939802A GB2042796B GB 2042796 B GB2042796 B GB 2042796B GB 7939802 A GB7939802 A GB 7939802A GB 7939802 A GB7939802 A GB 7939802A GB 2042796 B GB2042796 B GB 2042796B
Authority
GB
United Kingdom
Prior art keywords
piezoelectric vibrator
vibrator
piezoelectric
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
GB7939802A
Other versions
GB2042796A (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 JP14949978A external-priority patent/JPS5575325A/en
Priority claimed from JP14950078A external-priority patent/JPS5575326A/en
Application filed by Suwa Seikosha KK filed Critical Suwa Seikosha KK
Publication of GB2042796A publication Critical patent/GB2042796A/en
Application granted granted Critical
Publication of GB2042796B publication Critical patent/GB2042796B/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
    • H03H9/15—Constructional features of resonators consisting of piezoelectric or electrostrictive material
    • H03H9/21—Crystal tuning forks
    • H03H9/215—Crystal tuning forks consisting of quartz
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H3/00—Apparatus or processes specially adapted for the manufacture of impedance networks, resonating circuits, resonators
    • H03H3/007—Apparatus or processes specially adapted for the manufacture of impedance networks, resonating circuits, resonators for the manufacture of electromechanical resonators or networks
    • H03H3/02—Apparatus or processes specially adapted for the manufacture of impedance networks, resonating circuits, resonators for the manufacture of electromechanical resonators or networks for the manufacture of piezoelectric or electrostrictive resonators or networks
    • H03H3/04—Apparatus or processes specially adapted for the manufacture of impedance networks, resonating circuits, resonators for the manufacture of electromechanical resonators or networks for the manufacture of piezoelectric or electrostrictive resonators or networks for obtaining desired frequency or temperature coefficient

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Piezo-Electric Or Mechanical Vibrators, Or Delay Or Filter Circuits (AREA)
GB7939802A 1978-12-01 1979-11-16 Piezoelectric vibrator Expired GB2042796B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP14949978A JPS5575325A (en) 1978-12-01 1978-12-01 Tuning fork type crystal oscillator
JP14950078A JPS5575326A (en) 1978-12-01 1978-12-01 Tuning fork type crystal oscillator

Publications (2)

Publication Number Publication Date
GB2042796A GB2042796A (en) 1980-09-24
GB2042796B true GB2042796B (en) 1983-01-19

Family

ID=26479373

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7939802A Expired GB2042796B (en) 1978-12-01 1979-11-16 Piezoelectric vibrator

Country Status (1)

Country Link
GB (1) GB2042796B (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61288132A (en) * 1985-06-17 1986-12-18 Yokogawa Electric Corp Crystal thermometer
DE69906097T2 (en) * 1999-12-21 2004-02-19 Eta S.A. Fabriques D'ebauches Oscillator arrangement for a low-frequency quartz and with improved temperature behavior
CA2327576C (en) 1999-12-21 2008-09-30 Eta Sa Fabriques D'ebauches Low frequency quartz oscillator device with improved thermal characteristics

Also Published As

Publication number Publication date
GB2042796A (en) 1980-09-24

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Legal Events

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

Effective date: 19991115