CH636995GA3 - - Google Patents
Download PDFInfo
- Publication number
- CH636995GA3 CH636995GA3 CH863080A CH863080A CH636995GA3 CH 636995G A3 CH636995G A3 CH 636995GA3 CH 863080 A CH863080 A CH 863080A CH 863080 A CH863080 A CH 863080A CH 636995G A3 CH636995G A3 CH 636995GA3
- Authority
- CH
- Switzerland
- Prior art keywords
- vibration arms
- input terminal
- vibration
- excitation electrodes
- shaped quartz
- Prior art date
Links
- 230000005284 excitation Effects 0.000 abstract 2
- 239000010453 quartz Substances 0.000 abstract 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 abstract 2
- 238000005452 bending Methods 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
- H03H9/15—Constructional features of resonators consisting of piezoelectric or electrostrictive material
- H03H9/21—Crystal tuning forks
- H03H9/215—Crystal 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
A tuning fork-shaped quartz oscillator comprises a U-shaped quartz oscillator body which comprises of a pair of vibration arms having a rectangular cross section and a base connecting the vibration arms at one end. Four excitation electrodes are provided respectively on the four sides of each vibration arm, each electrode having a portion laid on two adjacent sides. The oscillator further comprises connecting means including a first input terminal and a second input terminal which supply drive voltage to the excitation electrodes so that the vibration arms keep vibrating in opposite phase relation in both a bending mode and a twisting mode.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1979162163U JPS6316169Y2 (en) | 1979-11-22 | 1979-11-22 |
Publications (2)
Publication Number | Publication Date |
---|---|
CH636995B CH636995B (en) | |
CH636995GA3 true CH636995GA3 (en) | 1983-07-15 |
Family
ID=15749219
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH863080A CH636995B (en) | 1979-11-22 | 1980-11-21 | TUNING FORK-SHAPED QUARTZ OSCILLATOR. |
Country Status (4)
Country | Link |
---|---|
US (1) | US4382204A (en) |
JP (1) | JPS6316169Y2 (en) |
CH (1) | CH636995B (en) |
GB (1) | GB2065965B (en) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS56136015A (en) * | 1980-03-26 | 1981-10-23 | Seiko Instr & Electronics Ltd | Electrode structure of tuning fork type quartz oscillator |
US4531073A (en) * | 1983-05-31 | 1985-07-23 | Ohaus Scale Corporation | Piezoelectric crystal resonator with reduced impedance and sensitivity to change in humidity |
US4897541A (en) * | 1984-05-18 | 1990-01-30 | Luxtron Corporation | Sensors for detecting electromagnetic parameters utilizing resonating elements |
US4678905A (en) * | 1984-05-18 | 1987-07-07 | Luxtron Corporation | Optical sensors for detecting physical parameters utilizing vibrating piezoelectric elements |
US4742260A (en) * | 1986-02-06 | 1988-05-03 | Hiroshi Shimizu | Piezoelectrically driving device |
US5170089A (en) * | 1989-12-20 | 1992-12-08 | General Electric Company | Two-axis motion apparatus utilizing piezoelectric material |
JP4050343B2 (en) * | 1996-04-02 | 2008-02-20 | 富士通株式会社 | Tuning fork vibration gyro |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE885562C (en) * | 1943-11-10 | 1953-08-06 | Siemens Ag | Arrangement for the generation of sound frequencies using a piezoelectric crystal which executes bending vibrations |
JPS5133367U (en) * | 1974-07-05 | 1976-03-11 | ||
JPS532097A (en) * | 1976-06-29 | 1978-01-10 | Seiko Instr & Electronics Ltd | Quartz crystal oscillator |
GB2006520B (en) * | 1977-09-07 | 1982-06-30 | Suwa Seikosha Kk | Piezoelectric resonator |
JPS54118292A (en) * | 1978-03-06 | 1979-09-13 | Fuji Electric Co Ltd | Measureing method of biological nitrification rate |
-
1979
- 1979-11-22 JP JP1979162163U patent/JPS6316169Y2/ja not_active Expired
-
1980
- 1980-11-18 US US06/208,065 patent/US4382204A/en not_active Expired - Lifetime
- 1980-11-21 CH CH863080A patent/CH636995B/en unknown
- 1980-11-21 GB GB8037431A patent/GB2065965B/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
JPS6316169Y2 (en) | 1988-05-09 |
GB2065965B (en) | 1983-10-05 |
GB2065965A (en) | 1981-07-01 |
CH636995B (en) | |
US4382204A (en) | 1983-05-03 |
JPS5679024U (en) | 1981-06-26 |
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