CH245546A - Luft- und wasserdichte Mikrophonkapsel. - Google Patents
Luft- und wasserdichte Mikrophonkapsel.Info
- Publication number
- CH245546A CH245546A CH245546DA CH245546A CH 245546 A CH245546 A CH 245546A CH 245546D A CH245546D A CH 245546DA CH 245546 A CH245546 A CH 245546A
- Authority
- CH
- Switzerland
- Prior art keywords
- membrane
- microphone capsule
- capsule
- airtight
- watertight
- Prior art date
Links
- 239000002775 capsule Substances 0.000 title claims description 31
- 239000012528 membrane Substances 0.000 claims description 28
- 239000002184 metal Substances 0.000 claims description 9
- 229910052751 metal Inorganic materials 0.000 claims description 9
- 239000007789 gas Substances 0.000 claims description 4
- 238000009413 insulation Methods 0.000 claims description 4
- 230000006378 damage Effects 0.000 claims description 3
- 239000011888 foil Substances 0.000 claims description 3
- 239000011148 porous material Substances 0.000 claims description 3
- 239000000126 substance Substances 0.000 claims description 2
- 230000001419 dependent effect Effects 0.000 claims 2
- 230000002745 absorbent Effects 0.000 claims 1
- 239000002250 absorbent Substances 0.000 claims 1
- 239000012774 insulation material Substances 0.000 claims 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 7
- 229910052799 carbon Inorganic materials 0.000 description 6
- 239000003610 charcoal Substances 0.000 description 3
- 239000011810 insulating material Substances 0.000 description 3
- 238000007789 sealing Methods 0.000 description 3
- 229920001971 elastomer Polymers 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 229920001342 Bakelite® Polymers 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 239000011358 absorbing material Substances 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 239000004637 bakelite Substances 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 230000001143 conditioned effect Effects 0.000 description 1
- 230000003750 conditioning effect Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000011152 fibreglass Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 239000011368 organic material Substances 0.000 description 1
- 229920000915 polyvinyl chloride Polymers 0.000 description 1
- 239000004800 polyvinyl chloride Substances 0.000 description 1
- 230000002028 premature Effects 0.000 description 1
- 230000003248 secreting effect Effects 0.000 description 1
- 239000000741 silica gel Substances 0.000 description 1
- 229910002027 silica gel Inorganic materials 0.000 description 1
- 238000005476 soldering Methods 0.000 description 1
- 230000003068 static effect 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
- H04R1/00—Details of transducers, loudspeakers or microphones
- H04R1/08—Mouthpieces; Microphones; Attachments therefor
- H04R1/083—Special constructions of mouthpieces
-
- 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)
- Measuring Fluid Pressure (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH245546T | 1945-04-21 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CH245546A true CH245546A (de) | 1946-11-15 |
Family
ID=4464971
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CH245546D CH245546A (de) | 1945-04-21 | 1945-04-21 | Luft- und wasserdichte Mikrophonkapsel. |
Country Status (2)
| Country | Link |
|---|---|
| BE (1) | BE464238A (en)van) |
| CH (1) | CH245546A (en)van) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE934896C (de) * | 1950-10-11 | 1955-11-10 | Int Standard Electric Corp | Elektroakustischer Wandler |
| DE1112117B (de) * | 1957-10-24 | 1961-08-03 | Emma Widmaier Geb Hoffmann | Kohlemikrofon |
-
0
- BE BE464238D patent/BE464238A/xx unknown
-
1945
- 1945-04-21 CH CH245546D patent/CH245546A/de unknown
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE934896C (de) * | 1950-10-11 | 1955-11-10 | Int Standard Electric Corp | Elektroakustischer Wandler |
| DE1112117B (de) * | 1957-10-24 | 1961-08-03 | Emma Widmaier Geb Hoffmann | Kohlemikrofon |
Also Published As
| Publication number | Publication date |
|---|---|
| BE464238A (en)van) |
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