JPS5513551A - Crystal vibrator - Google Patents

Crystal vibrator

Info

Publication number
JPS5513551A
JPS5513551A JP8586978A JP8586978A JPS5513551A JP S5513551 A JPS5513551 A JP S5513551A JP 8586978 A JP8586978 A JP 8586978A JP 8586978 A JP8586978 A JP 8586978A JP S5513551 A JPS5513551 A JP S5513551A
Authority
JP
Japan
Prior art keywords
vibration arm
vibrator
electrode
crystal vibrator
cost
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
JP8586978A
Other languages
Japanese (ja)
Other versions
JPS6246091B2 (en
Inventor
Hideo Hoshi
Koichi Teruyama
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 JP8586978A priority Critical patent/JPS5513551A/en
Publication of JPS5513551A publication Critical patent/JPS5513551A/en
Publication of JPS6246091B2 publication Critical patent/JPS6246091B2/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
    • 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
    • H03H9/56—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)

Abstract

PURPOSE:To reduce the cost of a crystal vibrator by connecting electrodes, which are arranged on a vibration arm, so that they may have a prescribed relation. CONSTITUTION:When the length of the vibration arm of a crystal vibrator is l, the effective electric field direction is inverted from a part 0.6l to 0.85l away from the tip of the vibration arm. For example, when electrode 19a which is arranged on the tip side circumference part of one vibration arm 18a, electrode 19b which is arranged at the base side center of vibration arm 18a, electrode 19g which is arranged at the tip side center of the other vibration arm 18b, and electrode 19h which is arranged on the base side circumference part of vibration arm 18a are connected electrically, vibrator 18 is excited by the secondary higher harmonic to obtain a six-time frequency. Consequently, the frequency of an approximately 200K Hz can be obtained and a logical high and low-speed means can be used, so that output signals having a desired period can be obtained even if the frequecy adjustment service of the vibrator itself is not omitted at all, and the cost of the vibrator can be reduced.
JP8586978A 1978-07-14 1978-07-14 Crystal vibrator Granted JPS5513551A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8586978A JPS5513551A (en) 1978-07-14 1978-07-14 Crystal vibrator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8586978A JPS5513551A (en) 1978-07-14 1978-07-14 Crystal vibrator

Publications (2)

Publication Number Publication Date
JPS5513551A true JPS5513551A (en) 1980-01-30
JPS6246091B2 JPS6246091B2 (en) 1987-09-30

Family

ID=13870895

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8586978A Granted JPS5513551A (en) 1978-07-14 1978-07-14 Crystal vibrator

Country Status (1)

Country Link
JP (1) JPS5513551A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2449916A1 (en) * 1979-02-20 1980-09-19 Suwa Seikosha Kk ELECTRODE FOR QUAPZ RESONATOR OF THE DIAPASON TYPE
US4377765A (en) * 1980-03-04 1983-03-22 Kabushiki Kaisha Suwa Seikosha Mode coupled tuning fork type quartz crystal vibrator and method of tuning
US4415827A (en) * 1981-05-27 1983-11-15 Statek Corporation Microresonator of tuning fork configuration operating at its second overtone frequency
JPS59218024A (en) * 1983-05-26 1984-12-08 Kinseki Kk Tuning fork type crystal oscillator
JP2012054895A (en) * 2010-09-03 2012-03-15 Daishinku Corp Tuning fork type piezoelectric vibrator

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0483337U (en) * 1990-11-30 1992-07-20

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5062591A (en) * 1973-10-03 1975-05-28
JPS5096191A (en) * 1973-12-24 1975-07-31
JPS5174592A (en) * 1974-12-25 1976-06-28 Kinsekisha Lab Ltd ONSAGATAATSUDENSHISHINDOSHI
JPS51111095A (en) * 1975-03-26 1976-10-01 Seiko Instr & Electronics Ltd Piezo-electrical vibrator
JPS51132976U (en) * 1975-04-17 1976-10-26
JPS5224487A (en) * 1975-08-20 1977-02-23 Seiko Instr & Electronics Ltd Piezoelectric vibrator
JPS5224485A (en) * 1975-08-20 1977-02-23 Morio Onoe Quartz vibrator
JPS52127094A (en) * 1976-04-16 1977-10-25 Seiko Instr & Electronics Ltd Tuning fork type piezoelectric oscillator
JPS5472994A (en) * 1977-11-22 1979-06-11 Seiko Instr & Electronics Ltd Crystal vibrator for electronic wristwatch
JPS558172A (en) * 1978-07-05 1980-01-21 Kinsekishiya Kenkyusho:Kk Tuning fork type piezoelectric oscillator

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5062591A (en) * 1973-10-03 1975-05-28
JPS5096191A (en) * 1973-12-24 1975-07-31
JPS5174592A (en) * 1974-12-25 1976-06-28 Kinsekisha Lab Ltd ONSAGATAATSUDENSHISHINDOSHI
JPS51111095A (en) * 1975-03-26 1976-10-01 Seiko Instr & Electronics Ltd Piezo-electrical vibrator
JPS51132976U (en) * 1975-04-17 1976-10-26
JPS5224487A (en) * 1975-08-20 1977-02-23 Seiko Instr & Electronics Ltd Piezoelectric vibrator
JPS5224485A (en) * 1975-08-20 1977-02-23 Morio Onoe Quartz vibrator
JPS52127094A (en) * 1976-04-16 1977-10-25 Seiko Instr & Electronics Ltd Tuning fork type piezoelectric oscillator
JPS5472994A (en) * 1977-11-22 1979-06-11 Seiko Instr & Electronics Ltd Crystal vibrator for electronic wristwatch
JPS558172A (en) * 1978-07-05 1980-01-21 Kinsekishiya Kenkyusho:Kk Tuning fork type piezoelectric oscillator

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2449916A1 (en) * 1979-02-20 1980-09-19 Suwa Seikosha Kk ELECTRODE FOR QUAPZ RESONATOR OF THE DIAPASON TYPE
US4377765A (en) * 1980-03-04 1983-03-22 Kabushiki Kaisha Suwa Seikosha Mode coupled tuning fork type quartz crystal vibrator and method of tuning
US4415827A (en) * 1981-05-27 1983-11-15 Statek Corporation Microresonator of tuning fork configuration operating at its second overtone frequency
JPS59218024A (en) * 1983-05-26 1984-12-08 Kinseki Kk Tuning fork type crystal oscillator
JPH0328844B2 (en) * 1983-05-26 1991-04-22 Kinseki Ltd
JP2012054895A (en) * 2010-09-03 2012-03-15 Daishinku Corp Tuning fork type piezoelectric vibrator

Also Published As

Publication number Publication date
JPS6246091B2 (en) 1987-09-30

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