DE275583C - - Google Patents
Info
- Publication number
- DE275583C DE275583C DENDAT275583D DE275583DA DE275583C DE 275583 C DE275583 C DE 275583C DE NDAT275583 D DENDAT275583 D DE NDAT275583D DE 275583D A DE275583D A DE 275583DA DE 275583 C DE275583 C DE 275583C
- Authority
- DE
- Germany
- Prior art keywords
- microphone
- current
- direct current
- metal body
- resistance
- 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
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 claims description 4
- 229910052721 tungsten Inorganic materials 0.000 claims description 4
- 239000010937 tungsten Substances 0.000 claims description 4
- 238000010438 heat treatment Methods 0.000 claims 1
- 229910052751 metal Inorganic materials 0.000 description 6
- 239000002184 metal Substances 0.000 description 6
- 239000011521 glass Substances 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 230000001105 regulatory Effects 0.000 description 2
- 241000947840 Alteromonadales Species 0.000 description 1
- 241000143432 Daldinia concentrica Species 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 230000000875 corresponding Effects 0.000 description 1
- 238000005755 formation reaction Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 239000000843 powder 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
- H04R23/00—Transducers other than those covered by groups H04R9/00 - H04R21/00
- H04R23/002—Transducers other than those covered by groups H04R9/00 - H04R21/00 using electrothermic-effect transducer
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Circuit For Audible Band Transducer (AREA)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE275583C true DE275583C (zh) |
Family
ID=531860
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DENDAT275583D Active DE275583C (zh) |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE275583C (zh) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19750478A1 (de) * | 1997-11-14 | 1999-06-02 | Berthold Nowak | Verfahrbare Wascheinheit für liegende Personen |
| US10398648B2 (en) | 2010-04-09 | 2019-09-03 | Pacira Pharmaceuticals, Inc. | Method for formulating large diameter synthetic membrane vesicles |
-
0
- DE DENDAT275583D patent/DE275583C/de active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19750478A1 (de) * | 1997-11-14 | 1999-06-02 | Berthold Nowak | Verfahrbare Wascheinheit für liegende Personen |
| US10398648B2 (en) | 2010-04-09 | 2019-09-03 | Pacira Pharmaceuticals, Inc. | Method for formulating large diameter synthetic membrane vesicles |
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