JPS5469982A - Piezoelectric vibrating unit - Google Patents

Piezoelectric vibrating unit

Info

Publication number
JPS5469982A
JPS5469982A JP13711077A JP13711077A JPS5469982A JP S5469982 A JPS5469982 A JP S5469982A JP 13711077 A JP13711077 A JP 13711077A JP 13711077 A JP13711077 A JP 13711077A JP S5469982 A JPS5469982 A JP S5469982A
Authority
JP
Japan
Prior art keywords
vibrators
metal plate
piezoelectric vibrating
vibrating unit
case
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
JP13711077A
Other languages
Japanese (ja)
Inventor
Hideo Hoshi
Kiyoshi Ogino
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 JP13711077A priority Critical patent/JPS5469982A/en
Publication of JPS5469982A publication Critical patent/JPS5469982A/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
    • H03H9/02—Details
    • H03H9/05—Holders; Supports
    • H03H9/10—Mounting in enclosures
    • H03H9/1007—Mounting in enclosures for bulk acoustic wave [BAW] devices
    • H03H9/1014—Mounting in enclosures for bulk acoustic wave [BAW] devices the enclosure being defined by a frame built on a substrate and a cap, the frame having no mechanical contact with the BAW device
    • H03H9/1021—Mounting in enclosures for bulk acoustic wave [BAW] devices the enclosure being defined by a frame built on a substrate and a cap, the frame having no mechanical contact with the BAW device the BAW device being of the cantilever type

Landscapes

  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Piezo-Electric Or Mechanical Vibrators, Or Delay Or Filter Circuits (AREA)

Abstract

PURPOSE:To achieve the miniaturization and higher accuracy of the watch by disposing a conductive material between the two vibrators sealed in the same case and eliminating the electrical coupling between the vibrators. CONSTITUTION:A stem 16 to which a vibrator 15 is fixed and a stem 19 to which a vibtator 17 and a metal plate 18 are fixed are force inserted from both ends of a cylindrical case 20 and are hermitically sealed. Namely, if the metal plate 18 is positioned between the vibrators 15 and 17 and the metal plate 18 is grounded, the electrical coupling between the vibrators 15 and 17 may by eliminated. If the case 20 is also simultaneously grounded, perfect coupling prevention may be achieved.
JP13711077A 1977-11-15 1977-11-15 Piezoelectric vibrating unit Pending JPS5469982A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13711077A JPS5469982A (en) 1977-11-15 1977-11-15 Piezoelectric vibrating unit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13711077A JPS5469982A (en) 1977-11-15 1977-11-15 Piezoelectric vibrating unit

Publications (1)

Publication Number Publication Date
JPS5469982A true JPS5469982A (en) 1979-06-05

Family

ID=15191065

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13711077A Pending JPS5469982A (en) 1977-11-15 1977-11-15 Piezoelectric vibrating unit

Country Status (1)

Country Link
JP (1) JPS5469982A (en)

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