AT37825B - Grain microphone. - Google Patents

Grain microphone.

Info

Publication number
AT37825B
AT37825B AT37825DA AT37825B AT 37825 B AT37825 B AT 37825B AT 37825D A AT37825D A AT 37825DA AT 37825 B AT37825 B AT 37825B
Authority
AT
Austria
Prior art keywords
microphone
spherical
hand
membrane
carbon
Prior art date
Application number
Other languages
German (de)
Original Assignee
Siemens Ag
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Siemens Ag filed Critical Siemens Ag
Application granted granted Critical
Publication of AT37825B publication Critical patent/AT37825B/en

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  • Electrostatic, Electromagnetic, Magneto- Strictive, And Variable-Resistance Transducers (AREA)

Description

  

   <Desc/Clms Page number 1> 
 
 EMI1.1 
 
 EMI1.2 
 gemäss der Hohlraum für den Kohlegrus kugelig oder   annähernd   kugelig (sphäroidisch) gestaltet und zwar wird. der Raum etwa zur Hälfte durch eine Ausprägung der   Membran,   zur   anderen Hä) fte   durch eine Aushöhlung der   Kohleelektrode   gebildet. 



   Die Zeichnung veranschaulicht den Erfindungsgegenstand durch einen Mittelschnitt. 
 EMI1.3 
 Mitte eine vorzugsweise halbkugelige Auspragung e augehracht ist. An der Innenseite ist an der Membran ein die Ausprägung c umgebender   Filz-bozw. Wattezylinder ( befestigt,   in den die   Kohleelektrode   e des Mikrophons fasst, die mit einer der Ausprägung c entsprechenden    Höhlung f versehen   ist. Die Höhlungen c und f passen so auf einander, dass sie einen allseitig gewölbten, vorzugsweise kugeligen oder annähernd kugeligen Raum einschliessen, der mit feinen Kohlekörnchen (Kohlegrus) zu   etwa gefüllt wird.   



   Die   Kohlekörnchen   folgen leicht jeder Bewegung des Mikrophons und es ist dabei stets ein guter, gleichmässiger Kontakt zwischen der Membran b und Elektrode e gesichert, so dass der Widerstand der Einrichtung in jeder Lage fast genau der gleiche ist. 

**WARNUNG** Ende DESC Feld kannt Anfang CLMS uberlappen**.



   <Desc / Clms Page number 1>
 
 EMI1.1
 
 EMI1.2
 according to the hollow space for the coal grit spherical or approximately spherical (spheroidal). about half of the space is formed by an expression of the membrane, the other half by a cavity in the carbon electrode.



   The drawing illustrates the subject matter of the invention through a central section.
 EMI1.3
 In the middle, a preferably hemispherical expression is created. On the inside of the membrane is a felt bozw surrounding the expression c. Cotton cylinder (attached, in which the carbon electrode e of the microphone grips, which is provided with a cavity f corresponding to the expression c. The cavities c and f fit one another in such a way that they enclose a space curved on all sides, preferably spherical or approximately spherical, the is filled with fine grains of coal (coal grit).



   The carbon grains easily follow every movement of the microphone and a good, even contact between the membrane b and electrode e is always ensured, so that the resistance of the device is almost exactly the same in every position.

** WARNING ** End of DESC field may overlap beginning of CLMS **.

Claims (1)

PATENT-ANSPRUCH : Körnermikrophon, dadurch gekennzeichnet, dass durch Ausprägung der Membran einerseits und Aushöhlung der Kohieelektrode andererseits ein kugeliger oder annähernd kugeliger (späroidischer) Hohlraum gebildet ist, in dem die Kohlekörnchen (Kohiegrus) untergebracht sind, zu dem Zwecke, um in jeder Lage des Mikrophons eine gleich gute Sprechverbindung zu erzielen. EMI1.4 **WARNUNG** Ende CLMS Feld Kannt Anfang DESC uberlappen**. PATENT CLAIM: Granular microphone, characterized in that by embossing the membrane on the one hand and hollowing out the carbon electrode on the other hand, a spherical or approximately spherical (spheroidal) cavity is formed in which the carbon granules (carbon granules) are accommodated, for the purpose of being able to move in any position of the microphone an equally good one To achieve speech connection. EMI1.4 ** WARNING ** End of CLMS field may overlap beginning of DESC **.
AT37825D 1908-08-25 1908-08-25 Grain microphone. AT37825B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AT37825T 1908-08-25

Publications (1)

Publication Number Publication Date
AT37825B true AT37825B (en) 1909-07-10

Family

ID=3555346

Family Applications (1)

Application Number Title Priority Date Filing Date
AT37825D AT37825B (en) 1908-08-25 1908-08-25 Grain microphone.

Country Status (1)

Country Link
AT (1) AT37825B (en)

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