BE348856A - - Google Patents
Info
- Publication number
- BE348856A BE348856A BE348856DA BE348856A BE 348856 A BE348856 A BE 348856A BE 348856D A BE348856D A BE 348856DA BE 348856 A BE348856 A BE 348856A
- Authority
- BE
- Belgium
- Prior art keywords
- layer
- telephone
- membrane
- magnetic
- sensitive
- Prior art date
Links
- 239000004020 conductor Substances 0.000 description 7
- 239000012528 membrane Substances 0.000 description 6
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 4
- 239000008187 granular material Substances 0.000 description 4
- 238000010276 construction Methods 0.000 description 3
- 230000001020 rhythmical effect Effects 0.000 description 3
- 239000003990 capacitor Substances 0.000 description 2
- 229910052759 nickel Inorganic materials 0.000 description 2
- HCUOEKSZWPGJIM-YBRHCDHNSA-N (e,2e)-2-hydroxyimino-6-methoxy-4-methyl-5-nitrohex-3-enamide Chemical compound COCC([N+]([O-])=O)\C(C)=C\C(=N/O)\C(N)=O HCUOEKSZWPGJIM-YBRHCDHNSA-N 0.000 description 1
- 241000238876 Acari Species 0.000 description 1
- 241000272814 Anser sp. Species 0.000 description 1
- 238000007792 addition Methods 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
- 239000003245 coal Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 230000033764 rhythmic process Effects 0.000 description 1
- 238000000844 transformation Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 230000001960 triggered 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
- 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)
- Telephone Set Structure (AREA)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE348856A true BE348856A (cg-RX-API-DMAC7.html) |
Family
ID=24279
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE348856D BE348856A (cg-RX-API-DMAC7.html) |
Country Status (1)
| Country | Link |
|---|---|
| BE (1) | BE348856A (cg-RX-API-DMAC7.html) |
-
0
- BE BE348856D patent/BE348856A/fr unknown
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