JPS5575328A - Tuning fork type twist crystal oscillator - Google Patents

Tuning fork type twist crystal oscillator

Info

Publication number
JPS5575328A
JPS5575328A JP15018578A JP15018578A JPS5575328A JP S5575328 A JPS5575328 A JP S5575328A JP 15018578 A JP15018578 A JP 15018578A JP 15018578 A JP15018578 A JP 15018578A JP S5575328 A JPS5575328 A JP S5575328A
Authority
JP
Japan
Prior art keywords
crystal oscillator
tuning fork
fork type
oscillation
twist
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
JP15018578A
Other languages
Japanese (ja)
Inventor
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 JP15018578A priority Critical patent/JPS5575328A/en
Publication of JPS5575328A publication Critical patent/JPS5575328A/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 reduce the effect of the fixed part to increase the Q by specifying the length of the basement after the fork part of the tuning fork type twist crystal oscillator, thus decreasing the deterioration with age. CONSTITUTION:Crystal oscillator 41 features the twist oscillation around neutral line 42, and the length of tuning fork basement BC is set to the value more than two areas (points C and D) of the node of twist oscillation possess. As a result, the position where the oscillation is attenuated sufficiently can be supported fixedly, thus minimizing the amount of energy escaping from the support part.
JP15018578A 1978-12-04 1978-12-04 Tuning fork type twist crystal oscillator Pending JPS5575328A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15018578A JPS5575328A (en) 1978-12-04 1978-12-04 Tuning fork type twist crystal oscillator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15018578A JPS5575328A (en) 1978-12-04 1978-12-04 Tuning fork type twist crystal oscillator

Publications (1)

Publication Number Publication Date
JPS5575328A true JPS5575328A (en) 1980-06-06

Family

ID=15491362

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15018578A Pending JPS5575328A (en) 1978-12-04 1978-12-04 Tuning fork type twist crystal oscillator

Country Status (1)

Country Link
JP (1) JPS5575328A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57199308A (en) * 1981-05-27 1982-12-07 Suteitetsuku Corp Piezoelectric tuning fork type vibrator unit
JPH02112311A (en) * 1988-10-20 1990-04-25 Matsushima Kogyo Co Ltd Twisted crystal resonator
JPH02131008A (en) * 1988-11-10 1990-05-18 Matsushima Kogyo Co Ltd Torsional crystal resonator

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57199308A (en) * 1981-05-27 1982-12-07 Suteitetsuku Corp Piezoelectric tuning fork type vibrator unit
JPH02112311A (en) * 1988-10-20 1990-04-25 Matsushima Kogyo Co Ltd Twisted crystal resonator
JPH02131008A (en) * 1988-11-10 1990-05-18 Matsushima Kogyo Co Ltd Torsional crystal resonator

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