BE331779A - - Google Patents
Info
- Publication number
- BE331779A BE331779A BE331779DA BE331779A BE 331779 A BE331779 A BE 331779A BE 331779D A BE331779D A BE 331779DA BE 331779 A BE331779 A BE 331779A
- Authority
- BE
- Belgium
- Prior art keywords
- membrane
- distance
- capacity body
- edge
- divided
- Prior art date
Links
- 239000012528 membrane Substances 0.000 claims description 29
- 230000005389 magnetism Effects 0.000 claims 1
- 239000003990 capacitor Substances 0.000 description 3
- 238000013016 damping Methods 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 238000012512 characterization method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000010445 mica Substances 0.000 description 1
- 229910052618 mica group Inorganic materials 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R19/00—Electrostatic transducers
- H04R19/02—Loudspeakers
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Electrostatic, Electromagnetic, Magneto- Strictive, And Variable-Resistance Transducers (AREA)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE331779A true BE331779A (OSRAM) |
Family
ID=10803
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE331779D BE331779A (OSRAM) |
Country Status (1)
| Country | Link |
|---|---|
| BE (1) | BE331779A (OSRAM) |
-
0
- BE BE331779D patent/BE331779A/fr unknown
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US2069242A (en) | Electroacoustic energy converting system | |
| FR2842269A1 (fr) | Amortisseur dynamique de type actif | |
| BE331779A (OSRAM) | ||
| US4151378A (en) | Electrostatic microphone with damping to improve omnidirectionality, flatten frequency response, reduce wind noise | |
| FR2570238A1 (fr) | Vibrateur electromecanique audio-frequence, destine a la reproduction de vibrations ressenties par le corps humain | |
| GB2440885A (en) | Giant magnetostrictive speaker | |
| US2031789A (en) | Acoustic electric energy converter | |
| US4223224A (en) | Charged-particle beam optical apparatus including a damped supplemental oscillator for the specimen holder thereof | |
| US1733013A (en) | Sound-reproducing device | |
| EP0117195A1 (fr) | Electrovalves à commande piézoélectrique | |
| US2047387A (en) | Holder for piezoelectric crystals | |
| BE442011A (OSRAM) | ||
| BE335007A (OSRAM) | ||
| US1695126A (en) | Loud speaker | |
| BE398443A (OSRAM) | ||
| US1789270A (en) | Adjustable speaker unit | |
| BE423598A (OSRAM) | ||
| BE343788A (OSRAM) | ||
| US2106224A (en) | Device for transforming acoustical energy into electrical energy | |
| BE347313A (OSRAM) | ||
| FR2555007A1 (fr) | Haut-parleur a haut rendement et a grande puissance admissible | |
| CH266141A (fr) | Pick-up. | |
| BE395063A (OSRAM) | ||
| BE377276A (OSRAM) | ||
| BE538824A (OSRAM) |