JPS5469985A - Piezoelectric vibrator - Google Patents

Piezoelectric vibrator

Info

Publication number
JPS5469985A
JPS5469985A JP13711877A JP13711877A JPS5469985A JP S5469985 A JPS5469985 A JP S5469985A JP 13711877 A JP13711877 A JP 13711877A JP 13711877 A JP13711877 A JP 13711877A JP S5469985 A JPS5469985 A JP S5469985A
Authority
JP
Japan
Prior art keywords
frequency
change
materials
vibrator
vibrating
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
JP13711877A
Other languages
Japanese (ja)
Inventor
Hirochika Sato
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 JP13711877A priority Critical patent/JPS5469985A/en
Publication of JPS5469985A publication Critical patent/JPS5469985A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H3/00—Apparatus or processes specially adapted for the manufacture of impedance networks, resonating circuits, resonators
    • H03H3/007—Apparatus or processes specially adapted for the manufacture of impedance networks, resonating circuits, resonators for the manufacture of electromechanical resonators or networks
    • H03H3/02—Apparatus or processes specially adapted for the manufacture of impedance networks, resonating circuits, resonators for the manufacture of electromechanical resonators or networks for the manufacture of piezoelectric or electrostrictive resonators or networks
    • H03H3/04—Apparatus or processes specially adapted for the manufacture of impedance networks, resonating circuits, resonators for the manufacture of electromechanical resonators or networks for the manufacture of piezoelectric or electrostrictive resonators or networks for obtaining desired frequency or temperature coefficient

Abstract

PURPOSE:To change frequencies depending upon the amounts of a plurality of materials without changing frequency temperature characteristics by coating said materials in such places where no influences are given to coupling between longitudinal vibrations. CONSTITUTION:A piezoelectric vibrator 1 consists of a vibrating part 2, supporing part 3 and bridge part 4 and its electrode employs a full face electrode system. Broken lines 5, 6 respectively indicate the tangents which occur when the vibrating part 2 vibrates longitudinally in its short side direction. This vibrator 1 is mounted by bonding a supporing material to a supporting part 3. This vibrator 1 is mounted by bouding a supporting material to a supporting part 3. Materials 7 composed of a metal or insulator are coated at four corners of the vibrating parts 2. If these coatings at four points are of the similar thickness and size, the change in frequency owing to mass effect may be caused without accompanying any change in frequency temperature characteristics. In order to change the frequency, the frequency is lowered until the desired frequency is obtained by removing the weights and matching or the frequency is lowered by gradually increasing the thickness of the weights.
JP13711877A 1977-11-15 1977-11-15 Piezoelectric vibrator Pending JPS5469985A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13711877A JPS5469985A (en) 1977-11-15 1977-11-15 Piezoelectric vibrator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13711877A JPS5469985A (en) 1977-11-15 1977-11-15 Piezoelectric vibrator

Publications (1)

Publication Number Publication Date
JPS5469985A true JPS5469985A (en) 1979-06-05

Family

ID=15191237

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13711877A Pending JPS5469985A (en) 1977-11-15 1977-11-15 Piezoelectric vibrator

Country Status (1)

Country Link
JP (1) JPS5469985A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2511820A1 (en) * 1981-08-21 1983-02-25 Seiko Instr & Electronics QUARTZ RESONATOR WITH COUPLING OF MODES
JPS58133019A (en) * 1982-02-03 1983-08-08 Seiko Instr & Electronics Ltd Gt-cut crystal oscillator
JPS58159012A (en) * 1982-03-16 1983-09-21 Seiko Instr & Electronics Ltd Manufacture of coupling vibrator unit

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2511820A1 (en) * 1981-08-21 1983-02-25 Seiko Instr & Electronics QUARTZ RESONATOR WITH COUPLING OF MODES
JPS5833308A (en) * 1981-08-21 1983-02-26 Seiko Instr & Electronics Ltd Coupled quartz oscillator
JPS58133019A (en) * 1982-02-03 1983-08-08 Seiko Instr & Electronics Ltd Gt-cut crystal oscillator
JPS58159012A (en) * 1982-03-16 1983-09-21 Seiko Instr & Electronics Ltd Manufacture of coupling vibrator unit

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