AT90075B - Device for generating electrical vibrations. - Google Patents
Device for generating electrical vibrations.Info
- Publication number
- AT90075B AT90075B AT90075DA AT90075B AT 90075 B AT90075 B AT 90075B AT 90075D A AT90075D A AT 90075DA AT 90075 B AT90075 B AT 90075B
- Authority
- AT
- Austria
- Prior art keywords
- frequency
- circuit
- generating electrical
- arc
- electron tube
- Prior art date
Links
Landscapes
- Transmitters (AREA)
Description
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Einrichtung zur Erzeugung elektrischer Schwingungen.
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beider aufnimmt. Erst dieser ist dann mit der Antenne gekoppelt.
Fig. 3 zeigt die Anwendung der Schaltungseinrichtung für drahtlose Telephonie. Parallel zum Kondensator K1 des Audionkreises 82 liegt der Sender T, der entweder ein Widerstandsmikrophon oder ein Kapazitätstelephon sein kann, dessen Kapazität sich gemäss den Sprechschwingungen ändert. Durch diese Kapazitätsschwankungen wird die Frequenz der des Audionkreises entsprechend variiert. Diese Frequenzschwankungen erscheinen daher ebenso in dem (aperiodisch ausgebildeten) Steuerkreis 82 und zuletzt im Lichtbogenkreis L, dem die Frequenz des Audionkreises aufgezwungen wird.
Da der Lichtbogenkreis durch die Koppelung J12 mit dem scharf abgestimmten Kreis S3 und dieser durch M3 mit der Antenne gekoppelt ist, werden die Frequenzschwankungen Verstimmungen erzeugen, die wieder Intensitätsschwankungen hervorrufen. In die Antenne gelangen also Schwingungen, deren Intensität gemäss den Sprechsehwingungen schwankt.
PATENT-ANSPRÜCHE :
1. Einrichtung zur Erzeugung elektrischer Schwingungen mittels Lichtbogen, dadurch gekennzeichnet, dass ein Lichtbogenschwingungskreis durch einen selbständig schwingenden Elektronenröhrengeneratorkreis gesteuert wird. so dass er zwangsweise dessen Frequenz erhält.
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Device for generating electrical vibrations.
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both take up. Only this is then coupled to the antenna.
Fig. 3 shows the application of the wireless telephony circuitry. The transmitter T, which can either be a resistance microphone or a capacitance telephone, the capacitance of which changes according to the speech oscillations, is located parallel to the capacitor K1 of the audio circuit 82. Due to these fluctuations in capacity, the frequency of the audio circuit is varied accordingly. These frequency fluctuations therefore also appear in the (aperiodic) control circuit 82 and finally in the arc circuit L, on which the frequency of the audio circuit is imposed.
Since the arc circuit is coupled to the sharply tuned circuit S3 through coupling J12 and the latter is coupled to the antenna through M3, the frequency fluctuations will generate detunings which again cause intensity fluctuations. Vibrations get into the antenna, the intensity of which fluctuates according to the speech vibrations.
PATENT CLAIMS:
1. Device for generating electrical oscillations by means of an arc, characterized in that an arc oscillation circuit is controlled by an electron tube generator circuit which oscillates independently. so that he forcibly receives its frequency.
Claims (1)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT90075T | 1920-06-15 |
Publications (1)
Publication Number | Publication Date |
---|---|
AT90075B true AT90075B (en) | 1922-11-25 |
Family
ID=3610378
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
AT90075D AT90075B (en) | 1920-06-15 | 1920-06-15 | Device for generating electrical vibrations. |
Country Status (1)
Country | Link |
---|---|
AT (1) | AT90075B (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE761573C (en) * | 1939-09-15 | 1953-07-06 | Gema Ges Fuer Elektroakustisch | Method for controlling an arc generator |
-
1920
- 1920-06-15 AT AT90075D patent/AT90075B/en active
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE761573C (en) * | 1939-09-15 | 1953-07-06 | Gema Ges Fuer Elektroakustisch | Method for controlling an arc generator |
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