JPS5239391A - Composite vibrator for watches - Google Patents
Composite vibrator for watchesInfo
- Publication number
- JPS5239391A JPS5239391A JP11490075A JP11490075A JPS5239391A JP S5239391 A JPS5239391 A JP S5239391A JP 11490075 A JP11490075 A JP 11490075A JP 11490075 A JP11490075 A JP 11490075A JP S5239391 A JPS5239391 A JP S5239391A
- Authority
- JP
- Japan
- Prior art keywords
- watches
- composite vibrator
- vibrator
- composite
- beat
- 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
- 239000002131 composite material Substances 0.000 title abstract 2
- 239000013078 crystal Substances 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
- H03H9/46—Filters
- H03H9/54—Filters comprising resonators of piezoelectric or electrostrictive material
- H03H9/58—Multiple crystal filters
- H03H9/60—Electric coupling means therefor
-
- 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
- H03H9/02086—Means for compensation or elimination of undesirable effects
- H03H9/02102—Means for compensation or elimination of undesirable effects of temperature influence
Landscapes
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Piezo-Electric Or Mechanical Vibrators, Or Delay Or Filter Circuits (AREA)
- Electric Clocks (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11490075A JPS5239391A (en) | 1975-09-25 | 1975-09-25 | Composite vibrator for watches |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11490075A JPS5239391A (en) | 1975-09-25 | 1975-09-25 | Composite vibrator for watches |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5239391A true JPS5239391A (en) | 1977-03-26 |
Family
ID=14649437
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP11490075A Pending JPS5239391A (en) | 1975-09-25 | 1975-09-25 | Composite vibrator for watches |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5239391A (ja) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5814603A (ja) * | 1981-07-20 | 1983-01-27 | Matsushita Electric Ind Co Ltd | 電圧制御型発振器 |
US4450378A (en) * | 1982-02-16 | 1984-05-22 | Centre Electronique Horloger S.A. | ZT-Cut piezo-electric resonator |
US4697118A (en) * | 1986-08-15 | 1987-09-29 | General Electric Company | Piezoelectric switch |
US5196758A (en) * | 1990-03-08 | 1993-03-23 | Centre Suisse D'electronique Et De Microtechnique S.A. | High frequency piezoelectric resonator |
US5396144A (en) * | 1993-08-02 | 1995-03-07 | New S.D., Inc. | Rotation rate sensor with center mounted tuning fork |
US6262520B1 (en) * | 1999-09-15 | 2001-07-17 | Bei Technologies, Inc. | Inertial rate sensor tuning fork |
-
1975
- 1975-09-25 JP JP11490075A patent/JPS5239391A/ja active Pending
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5814603A (ja) * | 1981-07-20 | 1983-01-27 | Matsushita Electric Ind Co Ltd | 電圧制御型発振器 |
JPH0119282B2 (ja) * | 1981-07-20 | 1989-04-11 | Matsushita Electric Ind Co Ltd | |
US4450378A (en) * | 1982-02-16 | 1984-05-22 | Centre Electronique Horloger S.A. | ZT-Cut piezo-electric resonator |
US4697118A (en) * | 1986-08-15 | 1987-09-29 | General Electric Company | Piezoelectric switch |
US5196758A (en) * | 1990-03-08 | 1993-03-23 | Centre Suisse D'electronique Et De Microtechnique S.A. | High frequency piezoelectric resonator |
US5396144A (en) * | 1993-08-02 | 1995-03-07 | New S.D., Inc. | Rotation rate sensor with center mounted tuning fork |
US6262520B1 (en) * | 1999-09-15 | 2001-07-17 | Bei Technologies, Inc. | Inertial rate sensor tuning fork |
US6507141B2 (en) | 1999-09-15 | 2003-01-14 | Bei Technologies, Inc. | Inertial rate sensor tuning fork |
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