FR2449916B1 - - Google Patents
Info
- Publication number
- FR2449916B1 FR2449916B1 FR8002702A FR8002702A FR2449916B1 FR 2449916 B1 FR2449916 B1 FR 2449916B1 FR 8002702 A FR8002702 A FR 8002702A FR 8002702 A FR8002702 A FR 8002702A FR 2449916 B1 FR2449916 B1 FR 2449916B1
- Authority
- FR
- France
- Prior art keywords
- tuning fork
- vibrations
- fork arms
- electrodes
- flexual
- 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.)
- Expired
Links
- 239000013078 crystal Substances 0.000 abstract 1
- 230000005684 electric field Effects 0.000 abstract 1
- 239000010453 quartz Substances 0.000 abstract 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 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
-
- G—PHYSICS
- G04—HOROLOGY
- G04F—TIME-INTERVAL MEASURING
- G04F5/00—Apparatus for producing preselected time intervals for use as timing standards
- G04F5/04—Apparatus for producing preselected time intervals for use as timing standards using oscillators with electromechanical resonators producing electric oscillations or timing pulses
- G04F5/06—Apparatus for producing preselected time intervals for use as timing standards using oscillators with electromechanical resonators producing electric oscillations or timing pulses using piezoelectric resonators
- G04F5/063—Constructional details
Landscapes
- Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Acoustics & Sound (AREA)
- General Physics & Mathematics (AREA)
- Piezo-Electric Or Mechanical Vibrators, Or Delay Or Filter Circuits (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1885779A JPS55112017A (en) | 1979-02-20 | 1979-02-20 | Electrode of tuning fork type crystal oscillator |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2449916A1 FR2449916A1 (fr) | 1980-09-19 |
FR2449916B1 true FR2449916B1 (fr) | 1984-06-15 |
Family
ID=11983202
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR8002702A Granted FR2449916A1 (fr) | 1979-02-20 | 1980-02-07 | Electrode pour resonateur a quartz du type diapason |
Country Status (7)
Country | Link |
---|---|
US (1) | US4356425A (fr) |
JP (1) | JPS55112017A (fr) |
CH (1) | CH647384GA3 (fr) |
DE (1) | DE3006040C2 (fr) |
FR (1) | FR2449916A1 (fr) |
GB (1) | GB2047954B (fr) |
HK (1) | HK87785A (fr) |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4469979A (en) * | 1983-05-27 | 1984-09-04 | Statek Corporation | Microresonator of double-ended tuning fork configuration |
US4531073A (en) * | 1983-05-31 | 1985-07-23 | Ohaus Scale Corporation | Piezoelectric crystal resonator with reduced impedance and sensitivity to change in humidity |
US5607236A (en) * | 1987-02-27 | 1997-03-04 | Seiko Epson Corporation | Quartz oscillator temperature sensor |
JPS63158405U (fr) * | 1987-04-04 | 1988-10-18 | ||
US4929860A (en) * | 1988-05-17 | 1990-05-29 | Sundstrand Data Control, Inc. | Electrode configuration for vibrating beam transducers |
JPH02179518A (ja) * | 1988-12-30 | 1990-07-12 | Yoshinobu Kobayashi | タイヤの滑り止め装置 |
US5987987A (en) * | 1997-04-14 | 1999-11-23 | Denso Corporation | Angular velocity sensor, related method for manufacturing the sensor, and piezoelectric vibrator element used in this sensor |
US7071794B2 (en) * | 2002-03-06 | 2006-07-04 | Piedek Technical Laboratory | Quartz crystal resonator, unit having resonator, oscillator having unit, electronic apparatus having oscillator, and method for manufacturing electronic apparatus |
US9203135B2 (en) * | 2002-04-23 | 2015-12-01 | Piedek Technical Laboratory | Method for manufacturing quartz crystal resonator |
CA2630266A1 (fr) * | 2008-05-02 | 2009-11-02 | Multimatic Inc. | Systeme de gestion de cargaison pour camionnettes |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
NL62574C (fr) * | 1936-02-21 | |||
NL266211A (fr) * | 1960-06-21 | |||
DE2418277C3 (de) * | 1973-04-16 | 1985-08-01 | Kabushiki Kaisha Suwa Seikosha, Shinjuku, Tokio/Tokyo | Quarzkristallbiegeschwinger und Verfahren zu seiner Herstellung |
JPS5133367U (fr) * | 1974-07-05 | 1976-03-11 | ||
JPS5323589A (en) * | 1976-08-18 | 1978-03-04 | Seiko Epson Corp | Crystal vibrator |
JPS54113297A (en) * | 1978-01-26 | 1979-09-04 | Seiko Epson Corp | Tuning fork-type crystal vibrator |
JPS54111297A (en) * | 1978-02-21 | 1979-08-31 | Seiko Instr & Electronics Ltd | Compound crystal oscillator |
JPS54131894A (en) * | 1978-04-05 | 1979-10-13 | Citizen Watch Co Ltd | Piezoelectric oscillator |
JPS558172A (en) * | 1978-07-05 | 1980-01-21 | Kinsekishiya Kenkyusho:Kk | Tuning fork type piezoelectric oscillator |
JPS5513551A (en) * | 1978-07-14 | 1980-01-30 | Seiko Instr & Electronics Ltd | Crystal vibrator |
US4320320A (en) * | 1978-12-01 | 1982-03-16 | Kabushiki Kaisha Suwa Seikosha | Coupled mode tuning fork type quartz crystal vibrator |
-
1979
- 1979-02-20 JP JP1885779A patent/JPS55112017A/ja active Granted
-
1980
- 1980-02-07 FR FR8002702A patent/FR2449916A1/fr active Granted
- 1980-02-18 GB GB8005371A patent/GB2047954B/en not_active Expired
- 1980-02-18 DE DE3006040A patent/DE3006040C2/de not_active Expired
- 1980-02-20 US US06/122,870 patent/US4356425A/en not_active Expired - Lifetime
- 1980-02-20 CH CH137180A patent/CH647384GA3/fr unknown
-
1985
- 1985-11-07 HK HK877/85A patent/HK87785A/xx not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
GB2047954A (en) | 1980-12-03 |
JPS55112017A (en) | 1980-08-29 |
JPS6251006B2 (fr) | 1987-10-28 |
FR2449916A1 (fr) | 1980-09-19 |
DE3006040C2 (de) | 1986-09-25 |
HK87785A (en) | 1985-11-15 |
DE3006040A1 (de) | 1980-08-28 |
GB2047954B (en) | 1983-04-20 |
US4356425A (en) | 1982-10-26 |
CH647384GA3 (fr) | 1985-01-31 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |