FR2257153B1 - - Google Patents
Info
- Publication number
- FR2257153B1 FR2257153B1 FR7500438A FR7500438A FR2257153B1 FR 2257153 B1 FR2257153 B1 FR 2257153B1 FR 7500438 A FR7500438 A FR 7500438A FR 7500438 A FR7500438 A FR 7500438A FR 2257153 B1 FR2257153 B1 FR 2257153B1
- Authority
- FR
- France
- Prior art keywords
- casing
- vibrator
- rods
- electrodes
- wall
- 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 2
- 238000005452 bending Methods 0.000 abstract 1
- 239000000463 material Substances 0.000 abstract 1
- 239000002184 metal Substances 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
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B06—GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS IN GENERAL
- B06B—METHODS OR APPARATUS FOR GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS OF INFRASONIC, SONIC, OR ULTRASONIC FREQUENCY, e.g. FOR PERFORMING MECHANICAL WORK IN GENERAL
- B06B1/00—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency
- B06B1/02—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy
- B06B1/06—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy operating with piezoelectric effect or with electrostriction
- B06B1/0644—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy operating with piezoelectric effect or with electrostriction using a single piezoelectric element
- B06B1/0659—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy operating with piezoelectric effect or with electrostriction using a single piezoelectric element of U-shape
Abstract
The very thin tuning-fork shaped quartz-crystal vibrator (15) is mounted in a casing (30) and comprises two metal rods (31) which are disconnected at two locations of the base of the vibrator which are touched by two conductive films of electrodes for exciting bending in their plane. These electrodes have a particular electrically advantageous configuration allowing such mounting. The two rods pass through the wall of the casing. A certain space remains between the rear side of the tuning fork and the wall of the casing, in which space the two said rods can bend in order to neutralise the stresses which, otherwise, would result from a difference in temperature coefficient between the quartz crystal and the material forming the casing. This component is particularly suited to miniaturisation, its vibrator being used as time base in an electronic watch.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP577374A JPS5333399B2 (en) | 1974-01-09 | 1974-01-09 | |
JP10798974A JPS5134685A (en) | 1974-09-19 | 1974-09-19 | Atsudenshindoshi no shijihoho |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2257153A1 FR2257153A1 (en) | 1975-08-01 |
FR2257153B1 true FR2257153B1 (en) | 1978-06-30 |
Family
ID=26339777
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7500438A Expired FR2257153B1 (en) | 1974-01-09 | 1975-01-08 |
Country Status (6)
Country | Link |
---|---|
CH (2) | CH641633GA3 (en) |
DE (1) | DE2500687C3 (en) |
FR (1) | FR2257153B1 (en) |
GB (1) | GB1465863A (en) |
HK (1) | HK55078A (en) |
MY (1) | MY7800432A (en) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5279794A (en) * | 1975-12-26 | 1977-07-05 | Seiko Instr & Electronics Ltd | Piezo-vibrator unit |
JPS6070811A (en) * | 1983-09-27 | 1985-04-22 | Matsushima Kogyo Co Ltd | Longitudinal vibration type piezoelectric vibrator and its manufacture |
EP1303042B1 (en) * | 2001-10-09 | 2018-12-05 | Eta SA Fabriques d'Ebauches | Piezoelectrical resonator and unit comprising such a resonator enclosed in a case |
TW567664B (en) | 2001-10-09 | 2003-12-21 | Ebauchesfabrik Eta Ag | Piezoelectric resonator and assembly comprising the same enclosed in a case |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
NL49647C (en) * | 1936-11-20 | |||
DE1915465B2 (en) * | 1968-04-01 | 1971-11-04 | Manufacturing housing for piezo electric quartz device | |
JPS4930558B1 (en) * | 1969-10-03 | 1974-08-14 | ||
FR2100546B1 (en) * | 1970-05-15 | 1973-07-13 | Lip Horlogerie | |
US3697787A (en) * | 1971-04-16 | 1972-10-10 | Seymour J Posner | Supersensitive energizing circuit |
-
1975
- 1975-01-08 FR FR7500438A patent/FR2257153B1/fr not_active Expired
- 1975-01-09 GB GB96875A patent/GB1465863A/en not_active Expired
- 1975-01-09 DE DE2500687A patent/DE2500687C3/en not_active Expired
-
1978
- 1978-09-14 HK HK550/78A patent/HK55078A/en unknown
- 1978-12-30 MY MY432/78A patent/MY7800432A/en unknown
-
1979
- 1979-10-04 CH CH896379A patent/CH641633GA3/en unknown
-
1983
- 1983-07-15 CH CH391083A patent/CH645507GA3/en unknown
Also Published As
Publication number | Publication date |
---|---|
CH641633B (en) | |
HK55078A (en) | 1978-09-22 |
FR2257153A1 (en) | 1975-08-01 |
DE2500687C3 (en) | 1986-11-13 |
DE2500687B2 (en) | 1977-12-22 |
CH645507GA3 (en) | 1984-10-15 |
DE2500687A1 (en) | 1975-07-17 |
MY7800432A (en) | 1978-12-31 |
GB1465863A (en) | 1977-03-02 |
CH641633GA3 (en) | 1984-03-15 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |