JPS5760719A - Tuning fork type quartz vibrator - Google Patents

Tuning fork type quartz vibrator

Info

Publication number
JPS5760719A
JPS5760719A JP13477580A JP13477580A JPS5760719A JP S5760719 A JPS5760719 A JP S5760719A JP 13477580 A JP13477580 A JP 13477580A JP 13477580 A JP13477580 A JP 13477580A JP S5760719 A JPS5760719 A JP S5760719A
Authority
JP
Japan
Prior art keywords
groove bottom
vibrator
tuning fork
quartz vibrator
concentrated
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
JP13477580A
Other languages
Japanese (ja)
Inventor
Masao Mafune
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.)
Citizen Holdings Co Ltd
Citizen Watch Co Ltd
Original Assignee
Citizen Holdings Co Ltd
Citizen Watch Co Ltd
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 Citizen Holdings Co Ltd, Citizen Watch Co Ltd filed Critical Citizen Holdings Co Ltd
Priority to JP13477580A priority Critical patent/JPS5760719A/en
Publication of JPS5760719A publication Critical patent/JPS5760719A/en
Pending legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H03ELECTRONIC CIRCUITRY
    • H03HIMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H9/00Networks comprising electromechanical or electro-acoustic devices; Electromechanical resonators
    • H03H9/15Constructional features of resonators consisting of piezoelectric or electrostrictive material
    • H03H9/21Crystal tuning forks
    • H03H9/215Crystal tuning forks consisting of quartz

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 obtain a small-sized crystal vibrator having a high resistance to shock, by etching the vibrator so that the position in the side of the +x face of the inside of the tuning fork out of parts, where stress generated near the groove bottom is concentrated, is placed in the arc part of the groove bottom when an excessive shock is applied. CONSTITUTION:If a quartz vibrator is subjected to the chemical etching work for four hours, a very small quantity of the intersection of the natural face to the left branch, namely, a +x face side 3 is placed in the arc of the groove bottom. Thus, the part where stress is concentrated very much is brought to the part of an R of the groove bottom where the concentrated stress is scattered, and a quartz vibrator strong against shock is obtained.
JP13477580A 1980-09-27 1980-09-27 Tuning fork type quartz vibrator Pending JPS5760719A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13477580A JPS5760719A (en) 1980-09-27 1980-09-27 Tuning fork type quartz vibrator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13477580A JPS5760719A (en) 1980-09-27 1980-09-27 Tuning fork type quartz vibrator

Publications (1)

Publication Number Publication Date
JPS5760719A true JPS5760719A (en) 1982-04-12

Family

ID=15136266

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13477580A Pending JPS5760719A (en) 1980-09-27 1980-09-27 Tuning fork type quartz vibrator

Country Status (1)

Country Link
JP (1) JPS5760719A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0821481A2 (en) * 1996-07-26 1998-01-28 Toyota Jidosha Kabushiki Kaisha Manufacture process of quartz vibrator
JP2014197728A (en) * 2013-03-29 2014-10-16 セイコーエプソン株式会社 Process of manufacturing vibration piece

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0821481A2 (en) * 1996-07-26 1998-01-28 Toyota Jidosha Kabushiki Kaisha Manufacture process of quartz vibrator
EP0821481A3 (en) * 1996-07-26 2000-01-19 Toyota Jidosha Kabushiki Kaisha Manufacture process of quartz vibrator
JP2014197728A (en) * 2013-03-29 2014-10-16 セイコーエプソン株式会社 Process of manufacturing vibration piece

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