JPS5575321A - Composite oscillator - Google Patents

Composite oscillator

Info

Publication number
JPS5575321A
JPS5575321A JP14949378A JP14949378A JPS5575321A JP S5575321 A JPS5575321 A JP S5575321A JP 14949378 A JP14949378 A JP 14949378A JP 14949378 A JP14949378 A JP 14949378A JP S5575321 A JPS5575321 A JP S5575321A
Authority
JP
Japan
Prior art keywords
frequency
featuring
temperature characteristics
oscillator
cut oscillator
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
JP14949378A
Other languages
Japanese (ja)
Inventor
Yoshio Sano
Hiroshi Onuki
Isao Shinoda
Seiji Higashichi
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 JP14949378A priority Critical patent/JPS5575321A/en
Publication of JPS5575321A publication Critical patent/JPS5575321A/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
    • H03H9/46—Filters
    • H03H9/54—Filters comprising resonators of piezoelectric or electrostrictive material
    • H03H9/58—Multiple crystal filters

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 enhance the frequency-temperature characteristics by using plural units or crystal oscillators featuring different oscillation modes in the parallel connection. CONSTITUTION:The driving electrodes opposing to each other are provided to each main face of AT-cut oscillator 1 and DT-cut oscillator 2 and then mounted to lead terminal 3a doubling the electric conduction and the support to be vacuum-sealed up. Then the AT-cut oscillator featuring frequency-temperature characteristics A is connected in parallel to the DT-cut oscillator featuring the frequency-temperature characteristics B. As a result, the temperature frequency featuring the less frequency change can be obtained as shown by dotted line C.
JP14949378A 1978-12-01 1978-12-01 Composite oscillator Pending JPS5575321A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14949378A JPS5575321A (en) 1978-12-01 1978-12-01 Composite oscillator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14949378A JPS5575321A (en) 1978-12-01 1978-12-01 Composite oscillator

Publications (1)

Publication Number Publication Date
JPS5575321A true JPS5575321A (en) 1980-06-06

Family

ID=15476347

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14949378A Pending JPS5575321A (en) 1978-12-01 1978-12-01 Composite oscillator

Country Status (1)

Country Link
JP (1) JPS5575321A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6072411A (en) * 1983-09-29 1985-04-24 Fujitsu Ltd Piezoelectric vibrator
JPS60160214A (en) * 1984-01-30 1985-08-21 Hiroshi Shimizu Rotation y-cut strip crystal resonator and its frequency temperature characteristic adjusting method

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6072411A (en) * 1983-09-29 1985-04-24 Fujitsu Ltd Piezoelectric vibrator
JPS60160214A (en) * 1984-01-30 1985-08-21 Hiroshi Shimizu Rotation y-cut strip crystal resonator and its frequency temperature characteristic adjusting method

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