FR822488A - Dispositifs piézoélectriques - Google Patents
Dispositifs piézoélectriquesInfo
- Publication number
- FR822488A FR822488A FR822488DA FR822488A FR 822488 A FR822488 A FR 822488A FR 822488D A FR822488D A FR 822488DA FR 822488 A FR822488 A FR 822488A
- Authority
- FR
- France
- Prior art keywords
- piezoelectric devices
- piezoelectric
- devices
- 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
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
- H03H9/02007—Details of bulk acoustic wave devices
- H03H9/02157—Dimensional parameters, e.g. ratio between two dimension parameters, length, width or thickness
Landscapes
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Nitrogen Condensed Heterocyclic Rings (AREA)
- Light Guides In General And Applications Therefor (AREA)
- Glass Compositions (AREA)
- Piezo-Electric Or Mechanical Vibrators, Or Delay Or Filter Circuits (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US479987XA | 1936-06-12 | 1936-06-12 |
Publications (1)
Publication Number | Publication Date |
---|---|
FR822488A true FR822488A (fr) | 1937-12-30 |
Family
ID=21952214
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR822488D Expired FR822488A (fr) | 1936-06-12 | 1937-05-31 | Dispositifs piézoélectriques |
Country Status (4)
Country | Link |
---|---|
DE (1) | DE903351C (fr) |
FR (1) | FR822488A (fr) |
GB (1) | GB479987A (fr) |
NL (1) | NL51121C (fr) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2324160A1 (fr) * | 1975-09-10 | 1977-04-08 | Seikosha Kk | Procede pour le reglage de la caracteristique frequence/temperature d'un oscillateur a quartz de coupe gt |
FR2363825A1 (fr) * | 1976-09-07 | 1978-03-31 | Seikosha Kk | Oscillateur a quartz, et procede pour sa fabrication |
FR2502867A1 (fr) * | 1981-03-25 | 1982-10-01 | Seiko Instr & Electronics | Resonateur a quartz miniature en coupe gt |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4410827A (en) * | 1980-04-24 | 1983-10-18 | Kabushiki Kaisha Suwa Seikosha | Mode coupled notched tuning fork type quartz crystal resonator |
US4633124A (en) * | 1982-03-16 | 1986-12-30 | Kabushiki Kaisha Daini Seikosha | Mount for quartz crystal resonator |
IL74148A (en) * | 1985-01-24 | 1990-07-26 | Israel State | Signal flare cartridge |
-
1937
- 1937-04-23 GB GB11684/37A patent/GB479987A/en not_active Expired
- 1937-05-27 DE DEW3474D patent/DE903351C/de not_active Expired
- 1937-05-31 FR FR822488D patent/FR822488A/fr not_active Expired
- 1937-06-11 NL NL82867A patent/NL51121C/xx active
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2324160A1 (fr) * | 1975-09-10 | 1977-04-08 | Seikosha Kk | Procede pour le reglage de la caracteristique frequence/temperature d'un oscillateur a quartz de coupe gt |
FR2363825A1 (fr) * | 1976-09-07 | 1978-03-31 | Seikosha Kk | Oscillateur a quartz, et procede pour sa fabrication |
FR2502867A1 (fr) * | 1981-03-25 | 1982-10-01 | Seiko Instr & Electronics | Resonateur a quartz miniature en coupe gt |
Also Published As
Publication number | Publication date |
---|---|
GB479987A (en) | 1938-02-15 |
DE903351C (de) | 1954-02-04 |
NL51121C (fr) | 1941-10-15 |
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