DE2656068A1 - Elektromagnetischer schallwandler - Google Patents
Elektromagnetischer schallwandlerInfo
- Publication number
- DE2656068A1 DE2656068A1 DE19762656068 DE2656068A DE2656068A1 DE 2656068 A1 DE2656068 A1 DE 2656068A1 DE 19762656068 DE19762656068 DE 19762656068 DE 2656068 A DE2656068 A DE 2656068A DE 2656068 A1 DE2656068 A1 DE 2656068A1
- Authority
- DE
- Germany
- Prior art keywords
- membrane
- sound transducer
- magnets
- transducer according
- elastic
- 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.)
- Ceased
Links
- 239000012528 membrane Substances 0.000 claims description 128
- 239000004020 conductor Substances 0.000 claims description 13
- 239000000463 material Substances 0.000 claims description 10
- 239000013013 elastic material Substances 0.000 claims description 9
- 125000006850 spacer group Chemical group 0.000 claims description 6
- 239000006260 foam Substances 0.000 claims description 5
- 230000003993 interaction Effects 0.000 claims description 3
- 239000004745 nonwoven fabric Substances 0.000 claims description 3
- 230000001154 acute effect Effects 0.000 claims description 2
- 239000011152 fibreglass Substances 0.000 claims description 2
- 239000002759 woven fabric Substances 0.000 claims description 2
- 229920005830 Polyurethane Foam Polymers 0.000 claims 1
- 230000005540 biological transmission Effects 0.000 claims 1
- 239000002657 fibrous material Substances 0.000 claims 1
- 239000011496 polyurethane foam Substances 0.000 claims 1
- 238000009331 sowing Methods 0.000 claims 1
- 239000004753 textile Substances 0.000 claims 1
- 238000010276 construction Methods 0.000 description 10
- 230000008901 benefit Effects 0.000 description 4
- 239000000696 magnetic material Substances 0.000 description 4
- 238000013016 damping Methods 0.000 description 3
- 229920001821 foam rubber Polymers 0.000 description 3
- 239000003365 glass fiber Substances 0.000 description 2
- 239000011490 mineral wool Substances 0.000 description 2
- 239000012858 resilient material Substances 0.000 description 2
- JOYRKODLDBILNP-UHFFFAOYSA-N Ethyl urethane Chemical compound CCOC(N)=O JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000006735 deficit Effects 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 230000005669 field effect Effects 0.000 description 1
- 239000006261 foam material Substances 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000008520 organization Effects 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 239000007779 soft material Substances 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
- H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
- H04R9/02—Details
- H04R9/04—Construction, mounting, or centering of coil
- H04R9/046—Construction
- H04R9/047—Construction in which the windings of the moving coil lay in the same plane
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB5081275A GB1545517A (en) | 1975-12-11 | 1975-12-11 | Transducer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE2656068A1 true DE2656068A1 (de) | 1977-06-23 |
Family
ID=10457472
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE19762656068 Ceased DE2656068A1 (de) | 1975-12-11 | 1976-12-10 | Elektromagnetischer schallwandler |
Country Status (6)
| Country | Link |
|---|---|
| JP (1) | JPS5292507A (enrdf_load_stackoverflow) |
| BE (1) | BE849303A (enrdf_load_stackoverflow) |
| DE (1) | DE2656068A1 (enrdf_load_stackoverflow) |
| FR (1) | FR2335118A1 (enrdf_load_stackoverflow) |
| GB (1) | GB1545517A (enrdf_load_stackoverflow) |
| NL (1) | NL7613813A (enrdf_load_stackoverflow) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3301848A1 (de) * | 1983-01-20 | 1984-07-26 | Siemens AG, 1000 Berlin und 8000 München | Ultraschallwandler |
| US4536673A (en) * | 1984-01-09 | 1985-08-20 | Siemens Aktiengesellschaft | Piezoelectric ultrasonic converter with polyurethane foam damper |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2037535B (en) * | 1978-12-14 | 1983-01-12 | Rank Organisation Ltd | Moving coil transducers |
| GB2301507B (en) * | 1994-03-08 | 1997-11-19 | Jonathan Neil Smith | Electromagnetic loudspeaker |
| GB9404585D0 (en) * | 1994-03-08 | 1994-04-20 | Smith Jonathan N | Loudspeaker |
| WO1999026451A1 (fr) * | 1996-06-10 | 1999-05-27 | Masanao Okuda | Transducteur electromagnetique mince |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1815564A (en) * | 1929-06-13 | 1931-07-21 | Westinghouse Electric & Mfg Co | Translating device |
| US3674946A (en) * | 1970-12-23 | 1972-07-04 | Magnepan Inc | Electromagnetic transducer |
| US3873784A (en) * | 1973-03-29 | 1975-03-25 | Audio Arts Inc | Acoustic transducer |
-
1975
- 1975-12-11 GB GB5081275A patent/GB1545517A/en not_active Expired
-
1976
- 1976-12-10 DE DE19762656068 patent/DE2656068A1/de not_active Ceased
- 1976-12-10 BE BE173173A patent/BE849303A/xx not_active IP Right Cessation
- 1976-12-10 FR FR7637247A patent/FR2335118A1/fr active Granted
- 1976-12-11 JP JP14930076A patent/JPS5292507A/ja active Pending
- 1976-12-13 NL NL7613813A patent/NL7613813A/xx not_active Application Discontinuation
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3301848A1 (de) * | 1983-01-20 | 1984-07-26 | Siemens AG, 1000 Berlin und 8000 München | Ultraschallwandler |
| US4536673A (en) * | 1984-01-09 | 1985-08-20 | Siemens Aktiengesellschaft | Piezoelectric ultrasonic converter with polyurethane foam damper |
Also Published As
| Publication number | Publication date |
|---|---|
| FR2335118A1 (fr) | 1977-07-08 |
| JPS5292507A (en) | 1977-08-04 |
| BE849303A (fr) | 1977-04-01 |
| GB1545517A (en) | 1979-05-10 |
| FR2335118B1 (enrdf_load_stackoverflow) | 1982-04-23 |
| NL7613813A (nl) | 1977-06-14 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 8127 | New person/name/address of the applicant |
Owner name: WHARFEDALE LTD., BRADFORD, GB |
|
| 8110 | Request for examination paragraph 44 | ||
| 8131 | Rejection |