GB631346A - Piezoelectric crystal elements and apparatus - Google Patents
Piezoelectric crystal elements and apparatusInfo
- Publication number
- GB631346A GB631346A GB7156/47A GB715647A GB631346A GB 631346 A GB631346 A GB 631346A GB 7156/47 A GB7156/47 A GB 7156/47A GB 715647 A GB715647 A GB 715647A GB 631346 A GB631346 A GB 631346A
- Authority
- GB
- United Kingdom
- Prior art keywords
- march
- axis
- piezoelectric crystal
- crystal elements
- plates
- 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 title abstract 3
- FEWJPZIEWOKRBE-JCYAYHJZSA-N Dextrotartaric acid Chemical compound OC(=O)[C@H](O)[C@@H](O)C(O)=O FEWJPZIEWOKRBE-JCYAYHJZSA-N 0.000 abstract 1
- 229940095064 tartrate Drugs 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 elements; Electromechanical resonators
- H03H9/02—Details
- H03H9/02007—Details of bulk acoustic wave devices
- H03H9/02015—Characteristics of piezoelectric layers, e.g. cutting angles
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
- H03H9/00—Networks comprising electromechanical or electro-acoustic elements; 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)
- Piezo-Electric Or Mechanical Vibrators, Or Delay Or Filter Circuits (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US657885A US2454328A (en) | 1946-03-28 | 1946-03-28 | Piezoelectric crystal apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB631346A true GB631346A (en) | 1949-11-01 |
Family
ID=24639055
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB7156/47A Expired GB631346A (en) | 1946-03-28 | 1947-03-14 | Piezoelectric crystal elements and apparatus |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US2454328A (instruction) |
| BE (1) | BE469891A (instruction) |
| FR (1) | FR937869A (instruction) |
| GB (1) | GB631346A (instruction) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2645035A (en) * | 1948-03-02 | 1953-07-14 | Machf Reineveld N V | Drying apparatus for laundry work |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2309467A (en) * | 1941-07-25 | 1943-01-26 | Bell Telephone Labor Inc | Rochelle salt piezoelectric crystal apparatus |
-
0
- BE BE469891D patent/BE469891A/xx unknown
-
1946
- 1946-03-28 US US657885A patent/US2454328A/en not_active Expired - Lifetime
- 1946-12-18 FR FR937869D patent/FR937869A/fr not_active Expired
-
1947
- 1947-03-14 GB GB7156/47A patent/GB631346A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2645035A (en) * | 1948-03-02 | 1953-07-14 | Machf Reineveld N V | Drying apparatus for laundry work |
Also Published As
| Publication number | Publication date |
|---|---|
| BE469891A (instruction) | |
| FR937869A (fr) | 1948-08-30 |
| US2454328A (en) | 1948-11-23 |
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