DE934896C - Elektroakustischer Wandler - Google Patents
Elektroakustischer WandlerInfo
- Publication number
- DE934896C DE934896C DEI4714A DEI0004714A DE934896C DE 934896 C DE934896 C DE 934896C DE I4714 A DEI4714 A DE I4714A DE I0004714 A DEI0004714 A DE I0004714A DE 934896 C DE934896 C DE 934896C
- Authority
- DE
- Germany
- Prior art keywords
- electroacoustic transducer
- additional
- diaphragm
- transducer according
- membrane
- 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
- 239000012528 membrane Substances 0.000 claims description 42
- 239000000463 material Substances 0.000 claims description 10
- 239000004698 Polyethylene Substances 0.000 claims description 4
- -1 polyethylene Polymers 0.000 claims description 4
- 229920000573 polyethylene Polymers 0.000 claims description 4
- 229920000915 polyvinyl chloride Polymers 0.000 claims description 3
- 239000004800 polyvinyl chloride Substances 0.000 claims description 3
- 244000043261 Hevea brasiliensis Species 0.000 claims description 2
- 239000004744 fabric Substances 0.000 claims description 2
- 229920003052 natural elastomer Polymers 0.000 claims description 2
- 229920001194 natural rubber Polymers 0.000 claims description 2
- 239000005871 repellent Substances 0.000 claims description 2
- 239000004753 textile Substances 0.000 claims description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims 1
- 229910052799 carbon Inorganic materials 0.000 claims 1
- 229920002379 silicone rubber Polymers 0.000 claims 1
- 239000004945 silicone rubber Substances 0.000 claims 1
- 229920003051 synthetic elastomer Polymers 0.000 claims 1
- 239000005061 synthetic rubber Substances 0.000 claims 1
- 239000002775 capsule Substances 0.000 description 8
- 238000013016 damping Methods 0.000 description 3
- 229920001971 elastomer Polymers 0.000 description 3
- PAYRUJLWNCNPSJ-UHFFFAOYSA-N Aniline Chemical compound NC1=CC=CC=C1 PAYRUJLWNCNPSJ-UHFFFAOYSA-N 0.000 description 2
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000002238 attenuated effect Effects 0.000 description 1
- 239000011324 bead Substances 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 239000013013 elastic material Substances 0.000 description 1
- 230000000763 evoking effect Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000011888 foil Substances 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 238000013017 mechanical damping Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- 230000029058 respiratory gaseous exchange 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
- H04R21/00—Variable-resistance transducers
- H04R21/02—Microphones
- H04R21/021—Microphones with granular resistance material
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Piezo-Electric Transducers For Audible Bands (AREA)
- Diaphragms For Electromechanical Transducers (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2748882X | 1950-10-11 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE934896C true DE934896C (de) | 1955-11-10 |
Family
ID=10914586
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DEI4714A Expired DE934896C (de) | 1950-10-11 | 1951-10-11 | Elektroakustischer Wandler |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US2748882A (h) |
| BE (1) | BE506348A (h) |
| DE (1) | DE934896C (h) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3153463A (en) * | 1961-08-30 | 1964-10-20 | Muter Company | Compound loudspeaker diaphragm |
| US3144801A (en) * | 1962-11-23 | 1964-08-18 | Kent A Abreo | Musical instrument |
| US4288663A (en) * | 1980-03-05 | 1981-09-08 | Roanwell Corporation | Noise canceling transmitter |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE612120C (de) * | 1935-04-13 | Lorenz Akt Ges C | Elekstrischer Apparat, insbesondere Fernmeldegeraet, mit einer als Membran dienenden Kapsel | |
| GB577969A (en) * | 1935-02-15 | 1936-11-05 | Hubert Dewhurst | Improvements in or relating to microphones |
| CH245546A (de) * | 1945-04-21 | 1946-11-15 | Zellweger Uster Ag | Luft- und wasserdichte Mikrophonkapsel. |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1759387A (en) * | 1928-10-16 | 1930-05-20 | Specialty Insulation Mfg Compa | Acoustic diaphragm and process for its manufacture |
| US1815987A (en) * | 1929-02-13 | 1931-07-28 | Charles W Peterson | Conical diaphragm for loud speakers |
| GB425186A (en) * | 1933-11-24 | 1935-03-08 | Alfred Graham & Co Ltd | Improvements relating to telephones |
| US2162270A (en) * | 1934-02-06 | 1939-06-13 | Bell Telephone Labor Inc | Acoustic device |
| US2345078A (en) * | 1940-02-20 | 1944-03-28 | Ueberschuss Albert | Carbon microphone |
| US2351400A (en) * | 1940-07-29 | 1944-06-13 | Sonotone Corp | Microphone |
| US2609458A (en) * | 1948-01-16 | 1952-09-02 | Vigren Sten Daniel | Telephone apparatus |
| US2520646A (en) * | 1948-09-09 | 1950-08-29 | Bell Telephone Labor Inc | Electroacoustic transducer |
| US2646853A (en) * | 1948-11-11 | 1953-07-28 | Int Standard Electric Corp | Compliant supports for transducer diaphragms |
| US2540498A (en) * | 1949-03-18 | 1951-02-06 | Bell Telephone Labor Inc | Microphone damping system having rear openings |
-
0
- BE BE506348D patent/BE506348A/xx unknown
-
1951
- 1951-10-08 US US250217A patent/US2748882A/en not_active Expired - Lifetime
- 1951-10-11 DE DEI4714A patent/DE934896C/de not_active Expired
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE612120C (de) * | 1935-04-13 | Lorenz Akt Ges C | Elekstrischer Apparat, insbesondere Fernmeldegeraet, mit einer als Membran dienenden Kapsel | |
| GB577969A (en) * | 1935-02-15 | 1936-11-05 | Hubert Dewhurst | Improvements in or relating to microphones |
| CH245546A (de) * | 1945-04-21 | 1946-11-15 | Zellweger Uster Ag | Luft- und wasserdichte Mikrophonkapsel. |
Also Published As
| Publication number | Publication date |
|---|---|
| BE506348A (h) | |
| US2748882A (en) | 1956-06-05 |
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