BE435465A - - Google Patents
Info
- Publication number
- BE435465A BE435465A BE435465DA BE435465A BE 435465 A BE435465 A BE 435465A BE 435465D A BE435465D A BE 435465DA BE 435465 A BE435465 A BE 435465A
- Authority
- BE
- Belgium
- Prior art keywords
- crystal
- electrodes
- crystals
- emi
- concave
- Prior art date
Links
- 239000013078 crystal Substances 0.000 claims description 20
- 230000005284 excitation Effects 0.000 claims description 2
- 239000010453 quartz Substances 0.000 claims description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 2
- 238000013016 damping Methods 0.000 description 3
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 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
- H03H9/15—Constructional features of resonators consisting of piezoelectric or electrostrictive material
- H03H9/17—Constructional features of resonators consisting of piezoelectric or electrostrictive material having a single resonator
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 |
|---|---|---|---|
| DE211198X | 1938-07-27 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE435465A true BE435465A (de) |
Family
ID=5801384
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE435465D BE435465A (de) | 1938-07-27 |
Country Status (3)
| Country | Link |
|---|---|
| BE (1) | BE435465A (de) |
| CH (1) | CH211198A (de) |
| FR (1) | FR857920A (de) |
-
0
- BE BE435465D patent/BE435465A/fr unknown
-
1939
- 1939-06-30 CH CH211198D patent/CH211198A/de unknown
- 1939-07-17 FR FR857920D patent/FR857920A/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| CH211198A (de) | 1940-08-31 |
| FR857920A (fr) | 1940-10-05 |
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