JPS54138394A - Width slide oscillator - Google Patents
Width slide oscillatorInfo
- Publication number
- JPS54138394A JPS54138394A JP4619278A JP4619278A JPS54138394A JP S54138394 A JPS54138394 A JP S54138394A JP 4619278 A JP4619278 A JP 4619278A JP 4619278 A JP4619278 A JP 4619278A JP S54138394 A JPS54138394 A JP S54138394A
- Authority
- JP
- Japan
- Prior art keywords
- oscillator
- length
- phi
- theta
- taken
- 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
Links
- 239000013078 crystal Substances 0.000 abstract 2
- 210000000707 wrist Anatomy 0.000 abstract 1
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
- H03H9/02007—Details of bulk acoustic wave devices
- H03H9/02015—Characteristics of piezoelectric layers, e.g. cutting angles
- H03H9/02023—Characteristics of piezoelectric layers, e.g. cutting angles consisting of quartz
-
- 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
- H03H9/125—Driving means, e.g. electrodes, coils
- H03H9/13—Driving means, e.g. electrodes, coils for networks consisting of piezoelectric or electrostrictive materials
- H03H9/132—Driving means, e.g. electrodes, coils for networks consisting of piezoelectric or electrostrictive materials characterized by a particular shape
Landscapes
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Piezo-Electric Or Mechanical Vibrators, Or Delay Or Filter Circuits (AREA)
Abstract
PURPOSE:To make small the oscillator in size and to increase the spurious performance, by using the crystal plate of a given size as an oscillator, in wrist watch. CONSTITUTION:The azimuth of the normal of a crystal plate (phi, theta) is cut off in the range of phi=-85 deg. to -95 deg. and theta=30 deg. to 45 deg. and the side surface is of bevel 4 type or convex type, then the length l2 of the part having constant width remained and the length le of the exciting electrode 2 to the length l1 of the oscillator 1 are l2/l1<=1/2, le/l1<=1/2, and when the width is taken as W, 1/25<= W/l1<=1/4 is in existence, and when the plate thickness is taken as t, the length is t/W<=0.6. Shuch as oscillator is used.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4619278A JPS54138394A (en) | 1978-04-19 | 1978-04-19 | Width slide oscillator |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4619278A JPS54138394A (en) | 1978-04-19 | 1978-04-19 | Width slide oscillator |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS54138394A true JPS54138394A (en) | 1979-10-26 |
Family
ID=12740183
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP4619278A Pending JPS54138394A (en) | 1978-04-19 | 1978-04-19 | Width slide oscillator |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS54138394A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS61208915A (en) * | 1985-03-13 | 1986-09-17 | Kinseki Kk | Sl-cut crystal resonator |
US5376861A (en) * | 1990-04-27 | 1994-12-27 | Seiko Epson Corporation | At-cut crystal oscillating reed and method of etching the same |
-
1978
- 1978-04-19 JP JP4619278A patent/JPS54138394A/en active Pending
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS61208915A (en) * | 1985-03-13 | 1986-09-17 | Kinseki Kk | Sl-cut crystal resonator |
JPH046286B2 (en) * | 1985-03-13 | 1992-02-05 | Kinseki Ltd | |
US5376861A (en) * | 1990-04-27 | 1994-12-27 | Seiko Epson Corporation | At-cut crystal oscillating reed and method of etching the same |
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