JPS54116191A - Crystal oscillator of diapason type - Google Patents

Crystal oscillator of diapason type

Info

Publication number
JPS54116191A
JPS54116191A JP2390378A JP2390378A JPS54116191A JP S54116191 A JPS54116191 A JP S54116191A JP 2390378 A JP2390378 A JP 2390378A JP 2390378 A JP2390378 A JP 2390378A JP S54116191 A JPS54116191 A JP S54116191A
Authority
JP
Japan
Prior art keywords
resonant frequency
oscillation
crystal oscillator
diapason
temperature characteristics
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.)
Pending
Application number
JP2390378A
Other languages
Japanese (ja)
Inventor
Shigeru Kogure
Eiji Momozaki
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 Epson Corp
Suwa Seikosha KK
Original Assignee
Seiko Epson Corp
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 Seiko Epson Corp, Suwa Seikosha KK filed Critical Seiko Epson Corp
Priority to JP2390378A priority Critical patent/JPS54116191A/en
Publication of JPS54116191A publication Critical patent/JPS54116191A/en
Pending 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

Landscapes

  • 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)

Abstract

PURPOSE:To constitute the crystal oscillator with high accuracy, small size and mass production, by improving the temperature characteristics of resonant frequency through the coupling of the bending and twist oscillation existing in the oscillator. CONSTITUTION:When the thickness T is varied by taking the length and width of the diapason rod of the diapason type crystal oscillator constant, the resonant frequency f1 of the bending oscillation 8 and that f2 of twist oscillation 9 toward parallel direction with the plate surface are closed together and the both modes are coupled, constituting the oscillation 10 of bow type. In this case, the primary temperature coefficient alpha of the resonant frequency temperature characteristics of f1 is zero at a certain value of T, and when the cutting angle of the crystal plate is changed, the angle minimizing the secondary temperature coefficient beta exists, improving the resonant frequency temperature characteristics of f1.
JP2390378A 1978-03-01 1978-03-01 Crystal oscillator of diapason type Pending JPS54116191A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2390378A JPS54116191A (en) 1978-03-01 1978-03-01 Crystal oscillator of diapason type

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2390378A JPS54116191A (en) 1978-03-01 1978-03-01 Crystal oscillator of diapason type

Publications (1)

Publication Number Publication Date
JPS54116191A true JPS54116191A (en) 1979-09-10

Family

ID=12123417

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2390378A Pending JPS54116191A (en) 1978-03-01 1978-03-01 Crystal oscillator of diapason type

Country Status (1)

Country Link
JP (1) JPS54116191A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4453105A (en) * 1980-09-08 1984-06-05 Kabushiki Kaisha Suwa Seikosha Mode coupled quartz crystal tuning fork
JPH02131008A (en) * 1988-11-10 1990-05-18 Matsushima Kogyo Co Ltd Torsional crystal resonator

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4453105A (en) * 1980-09-08 1984-06-05 Kabushiki Kaisha Suwa Seikosha Mode coupled quartz crystal tuning fork
JPH02131008A (en) * 1988-11-10 1990-05-18 Matsushima Kogyo Co Ltd Torsional crystal resonator

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