DE224846C - - Google Patents
Info
- Publication number
- DE224846C DE224846C DENDAT224846D DE224846DA DE224846C DE 224846 C DE224846 C DE 224846C DE NDAT224846 D DENDAT224846 D DE NDAT224846D DE 224846D A DE224846D A DE 224846DA DE 224846 C DE224846 C DE 224846C
- Authority
- DE
- Germany
- Prior art keywords
- membrane
- disk
- microphone
- attached
- vibrate
- 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.)
- Active
Links
- 239000012528 membrane Substances 0.000 claims description 31
- 210000004027 cell Anatomy 0.000 description 4
- 239000003245 coal Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 230000001788 irregular Effects 0.000 description 2
- 241000947840 Alteromonadales Species 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 239000011324 bead Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 210000004565 granule cell Anatomy 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 239000010959 steel 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
- 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)
- Electrostatic, Electromagnetic, Magneto- Strictive, And Variable-Resistance Transducers (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE227781T |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE224846C true DE224846C (enrdf_load_stackoverflow) |
Family
ID=5866819
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DENDAT227781D Active DE227781C (enrdf_load_stackoverflow) | |||
| DENDAT224846D Active DE224846C (enrdf_load_stackoverflow) |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DENDAT227781D Active DE227781C (enrdf_load_stackoverflow) |
Country Status (1)
| Country | Link |
|---|---|
| DE (2) | DE224846C (enrdf_load_stackoverflow) |
-
0
- DE DENDAT227781D patent/DE227781C/de active Active
- DE DENDAT224846D patent/DE224846C/de active Active
Also Published As
| Publication number | Publication date |
|---|---|
| DE227781C (enrdf_load_stackoverflow) |
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