FR2292412A7 - Perfectionnement aux vibreurs electromagnetiques a circuit d'entretien electronique - Google Patents
Perfectionnement aux vibreurs electromagnetiques a circuit d'entretien electroniqueInfo
- Publication number
- FR2292412A7 FR2292412A7 FR7438349A FR7438349A FR2292412A7 FR 2292412 A7 FR2292412 A7 FR 2292412A7 FR 7438349 A FR7438349 A FR 7438349A FR 7438349 A FR7438349 A FR 7438349A FR 2292412 A7 FR2292412 A7 FR 2292412A7
- Authority
- FR
- France
- Prior art keywords
- iron core
- soft iron
- electromagnetic vibrator
- drive coil
- maintenance circuit
- 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
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
- G10K9/00—Devices in which sound is produced by vibrating a diaphragm or analogous element, e.g. fog horns, vehicle hooters or buzzers
- G10K9/12—Devices in which sound is produced by vibrating a diaphragm or analogous element, e.g. fog horns, vehicle hooters or buzzers electrically operated
- G10K9/13—Devices in which sound is produced by vibrating a diaphragm or analogous element, e.g. fog horns, vehicle hooters or buzzers electrically operated using electromagnetic driving means
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Multimedia (AREA)
- Reciprocating, Oscillating Or Vibrating Motors (AREA)
- Apparatuses For Generation Of Mechanical Vibrations (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7438349A FR2292412A7 (fr) | 1974-11-21 | 1974-11-21 | Perfectionnement aux vibreurs electromagnetiques a circuit d'entretien electronique |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7438349A FR2292412A7 (fr) | 1974-11-21 | 1974-11-21 | Perfectionnement aux vibreurs electromagnetiques a circuit d'entretien electronique |
Publications (1)
Publication Number | Publication Date |
---|---|
FR2292412A7 true FR2292412A7 (fr) | 1976-06-18 |
Family
ID=9145148
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7438349A Expired FR2292412A7 (fr) | 1974-11-21 | 1974-11-21 | Perfectionnement aux vibreurs electromagnetiques a circuit d'entretien electronique |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR2292412A7 (fr) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2361709A1 (fr) * | 1976-08-11 | 1978-03-10 | Ward Goldstone Ltd | Generateur acoustique |
-
1974
- 1974-11-21 FR FR7438349A patent/FR2292412A7/fr not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2361709A1 (fr) * | 1976-08-11 | 1978-03-10 | Ward Goldstone Ltd | Generateur acoustique |
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