JPS5662404A - Quartz oscillating system - Google Patents

Quartz oscillating system

Info

Publication number
JPS5662404A
JPS5662404A JP13855679A JP13855679A JPS5662404A JP S5662404 A JPS5662404 A JP S5662404A JP 13855679 A JP13855679 A JP 13855679A JP 13855679 A JP13855679 A JP 13855679A JP S5662404 A JPS5662404 A JP S5662404A
Authority
JP
Japan
Prior art keywords
oscillation
electrodes
center
short
center line
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
JP13855679A
Other languages
Japanese (ja)
Inventor
Hideo Hoshi
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 Instruments Inc
Original Assignee
Seiko Instruments Inc
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 Instruments Inc filed Critical Seiko Instruments Inc
Priority to JP13855679A priority Critical patent/JPS5662404A/en
Publication of JPS5662404A publication Critical patent/JPS5662404A/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 elements; Electromechanical resonators
    • H03H9/46—Filters
    • H03H9/54—Filters comprising resonators of piezoelectric or electrostrictive material
    • H03H9/56—Monolithic crystal filters
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H9/00—Networks comprising electromechanical or electro-acoustic elements; Electromechanical resonators
    • H03H9/46—Filters
    • H03H9/54—Filters comprising resonators of piezoelectric or electrostrictive material
    • H03H9/56—Monolithic crystal filters
    • H03H9/566—Electric coupling means therefor

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)
  • Oscillators With Electromechanical Resonators (AREA)

Abstract

PURPOSE:To enable to cause stable oscillation simultaneously in different frequencies, by providing two sets of electrodes at the center of long and short sides of a quartz chip and oscillating it with two sets of oscillation circuits. CONSTITUTION:Oscillating electrodes 6a, 6b for short side longitudinal oscillation are located along the center line in parallel with a long side, and oscillation electrodes 6c, 6d for lond side oscillation are located along the center line in parallel with a short side. The reason of the location along the center line is to increase the efficiency since the stress at oscillation is greater at the center. Further, since two electrodes are located on one plane, the center part of each electrode is made narrower. By the ratio of short and long sides, the difference of two oscillation frequencies can considerably be made free. Thus, the temperature characteristics can be made flat over a broader range by logical operation to two types of signals obtained.
JP13855679A 1979-10-26 1979-10-26 Quartz oscillating system Pending JPS5662404A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13855679A JPS5662404A (en) 1979-10-26 1979-10-26 Quartz oscillating system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13855679A JPS5662404A (en) 1979-10-26 1979-10-26 Quartz oscillating system

Publications (1)

Publication Number Publication Date
JPS5662404A true JPS5662404A (en) 1981-05-28

Family

ID=15224896

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13855679A Pending JPS5662404A (en) 1979-10-26 1979-10-26 Quartz oscillating system

Country Status (1)

Country Link
JP (1) JPS5662404A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6068701A (en) * 1983-09-22 1985-04-19 Seiko Instr & Electronics Ltd Crystal oscillation system
JPH0265510A (en) * 1988-08-31 1990-03-06 Nippon Dempa Kogyo Co Ltd Crystal oscillator
JPH02174407A (en) * 1988-12-27 1990-07-05 Nippon Dempa Kogyo Co Ltd Temperature compensated frequency crystal oscillator
WO2016060204A1 (en) * 2014-10-16 2016-04-21 日本電波工業株式会社 Crystal oscillator

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4843287A (en) * 1971-10-01 1973-06-22
JPS54132159A (en) * 1978-04-06 1979-10-13 Seiko Instr & Electronics Ltd Temperature compensating crystal oscilltor circuit

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4843287A (en) * 1971-10-01 1973-06-22
JPS54132159A (en) * 1978-04-06 1979-10-13 Seiko Instr & Electronics Ltd Temperature compensating crystal oscilltor circuit

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6068701A (en) * 1983-09-22 1985-04-19 Seiko Instr & Electronics Ltd Crystal oscillation system
JPH0265510A (en) * 1988-08-31 1990-03-06 Nippon Dempa Kogyo Co Ltd Crystal oscillator
JPH02174407A (en) * 1988-12-27 1990-07-05 Nippon Dempa Kogyo Co Ltd Temperature compensated frequency crystal oscillator
WO2016060204A1 (en) * 2014-10-16 2016-04-21 日本電波工業株式会社 Crystal oscillator

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