JPS56123120A - Coupled tuning fork type quartz oscillator - Google Patents

Coupled tuning fork type quartz oscillator

Info

Publication number
JPS56123120A
JPS56123120A JP2695880A JP2695880A JPS56123120A JP S56123120 A JPS56123120 A JP S56123120A JP 2695880 A JP2695880 A JP 2695880A JP 2695880 A JP2695880 A JP 2695880A JP S56123120 A JPS56123120 A JP S56123120A
Authority
JP
Japan
Prior art keywords
electrode
tuning fork
deltaf
adjusting
fork type
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.)
Granted
Application number
JP2695880A
Other languages
Japanese (ja)
Other versions
JPS6334645B2 (en
Inventor
Shigeru Kogure
Eiji Momozaki
Minoru Inoue
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 JP2695880A priority Critical patent/JPS56123120A/en
Priority to FR8103611A priority patent/FR2477803A1/en
Priority to GB8106490A priority patent/GB2072943B/en
Priority to US06/240,045 priority patent/US4377765A/en
Priority to DE3108166A priority patent/DE3108166C2/en
Priority to CH145181A priority patent/CH645509GA3/fr
Publication of JPS56123120A publication Critical patent/JPS56123120A/en
Publication of JPS6334645B2 publication Critical patent/JPS6334645B2/ja
Granted 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

Abstract

PURPOSE:To make it possible to adjust frequency fF of one vibration mode independently by providing an electrode for adjusting fF and an electrode for adjusting (fF-fT), where fT is the frequency of the other vibration mode, on two main surfaces of a tuning fork arm. CONSTITUTION:While DELTAf=(fF-fT), electrode 8 for adjusting DELTAf is provided on node D of a tuning fork arm and electrode 8 is adjusted to set DELTAf to the best value DELTAf0. Electrode 9 for adjusting fF is an inverted triangle and fF can be adjusted to the best value fF0 with DELTAf set to DELTAf0, by vapor-depositing a metallic film on electrode 9 or by notching the metallic film.
JP2695880A 1980-03-04 1980-03-04 Coupled tuning fork type quartz oscillator Granted JPS56123120A (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
JP2695880A JPS56123120A (en) 1980-03-04 1980-03-04 Coupled tuning fork type quartz oscillator
FR8103611A FR2477803A1 (en) 1980-03-04 1981-02-24 QUARTZ RESONATOR TYPE DIAPASON TYPE COUPLING
GB8106490A GB2072943B (en) 1980-03-04 1981-03-02 Piezo-electric crystal vibrator
US06/240,045 US4377765A (en) 1980-03-04 1981-03-03 Mode coupled tuning fork type quartz crystal vibrator and method of tuning
DE3108166A DE3108166C2 (en) 1980-03-04 1981-03-04 Tuning fork quartz crystal oscillator with oscillation coupling
CH145181A CH645509GA3 (en) 1980-03-04 1981-03-04

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2695880A JPS56123120A (en) 1980-03-04 1980-03-04 Coupled tuning fork type quartz oscillator

Publications (2)

Publication Number Publication Date
JPS56123120A true JPS56123120A (en) 1981-09-28
JPS6334645B2 JPS6334645B2 (en) 1988-07-12

Family

ID=12207659

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2695880A Granted JPS56123120A (en) 1980-03-04 1980-03-04 Coupled tuning fork type quartz oscillator

Country Status (1)

Country Link
JP (1) JPS56123120A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02501862A (en) * 1988-05-17 1990-06-21 サンドストランド・データ・コントロール・インコーポレーテッド Electrode geometry for vibrating beam transducers

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02501862A (en) * 1988-05-17 1990-06-21 サンドストランド・データ・コントロール・インコーポレーテッド Electrode geometry for vibrating beam transducers

Also Published As

Publication number Publication date
JPS6334645B2 (en) 1988-07-12

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