DE319158C - Electrical tuning circuit for underwater sound apparatus, especially for receiver purposes - Google Patents
Electrical tuning circuit for underwater sound apparatus, especially for receiver purposesInfo
- Publication number
- DE319158C DE319158C DE1918319158D DE319158DD DE319158C DE 319158 C DE319158 C DE 319158C DE 1918319158 D DE1918319158 D DE 1918319158D DE 319158D D DE319158D D DE 319158DD DE 319158 C DE319158 C DE 319158C
- Authority
- DE
- Germany
- Prior art keywords
- tuning circuit
- underwater sound
- sound apparatus
- electrical tuning
- purposes
- 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.)
- Expired
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S1/00—Beacons or beacon systems transmitting signals having a characteristic or characteristics capable of being detected by non-directional receivers and defining directions, positions, or position lines fixed relatively to the beacon transmitters; Receivers co-operating therewith
- G01S1/72—Beacons or beacon systems transmitting signals having a characteristic or characteristics capable of being detected by non-directional receivers and defining directions, positions, or position lines fixed relatively to the beacon transmitters; Receivers co-operating therewith using ultrasonic, sonic or infrasonic waves
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
Description
Elektrischer Abstimmkreis für Unterwasserschallapparate, insbesondere für Empfängerzwecke. Zur Beseitigung von störenden Geräuschen in den Empfangsapparaten bei Unterwasserschallapparaten ist es bereits bekannt, elektrische Abstimmkreise zu verwenden, die auf die Frequenz des jeweils..aufzunehmenden Tones abgestimmt sind. Diese Abstimmkreise bestehen aus einer Selbstinduktion und aus einer Kapazität, die gewöhnlich in dem Schaltkasten der Empfangseinrichtung untergebracht werden. Der Empfangskasten selbst befindet sich in der Signalzentrale; durch diese gehen häufig wechselstromführende Kabel, die naturgemäß die Abstimmspule induzieren, besonders stark, wenn die Frequenz des äußeren Wechselsitroines zufällig übereinstimmt rnit der Frequenz der aufzunehmenden Signale. Im Empfangstelephon .macht sich dieses sogenannte Übersprechen als Singen bemerkbar, das sich den Signalen überlagert und diese mehr oder weniger stark verwischt, so daß sie oft überhaupt nicht aufzunehmen sind.Electrical tuning circuit for underwater sound apparatus, in particular for recipient purposes. To eliminate annoying noises in the receiving equipment in underwater sound apparatus it is already known to use electrical tuning circuits to use which are tuned to the frequency of the particular tone to be recorded are. These tuning circles consist of a self-induction and a capacitance, which are usually housed in the switch box of the receiving device. The reception box itself is located in the signal center; go through this often AC cables, which naturally induce the tuning coil, especially strong if the frequency of the external alternating nitroine happens to coincide with the frequency of the signals to be recorded. This is done in the reception telephone so-called crosstalk noticeable as singing, which is superimposed on the signals and these are more or less blurred, so that they often cannot be absorbed at all are.
Durch die vorliegende Erfindung wird dieser Übelstand vermieden, und zwar wird dies dadurch erreicht, daß die Selbstinduktion des Abstimmkreises in mehrere selbständige Teile zerlegt, und diesen Einzelteilen ein solcher Wicklungssinn gegeben wird, daß die in den einzelnen Teilspulen hervorgerufenen Induktionswirkungen sich i,m wesentlichen aufheben.This drawback is avoided by the present invention, and although this is achieved by the fact that the self-induction of the tuning circuit in several disassembled independent parts, and given these individual parts such a winding sense becomes that the induction effects caused in the individual sub-coils i, m essential cancel.
Gemäß der Erfindung liegen weiterhin alle Abstimmspulen in Serie im Abstiimmlcreis. Die einzelnen Abteilungen können entweder auf einem Kern vereinigt oder auch getrennt angeordnet sein. Es ist dabei nur darauf zu achten, daß die störenden Wechselfelder die verschiedenen Spulenabschnitte in entgegengesetzter Richtung durchsetzen.According to the invention, all tuning coils are also in series Voting group. The individual departments can either be united on one core or be arranged separately. It is only important to ensure that the disturbing Alternating fields enforce the various coil sections in opposite directions.
Zur Erläuterung des Erfindungsgedankens sind auf der Zeichnung zwei Ausführungsbeispiele schematisch dargestellt, und, zwar zeigen Fig. i eine Anordnung .mit' zwei achsial übereinander liegenden Abstimmspulen und Fig.2 eine Anordnung, bei der die Abstimmspulen nebeneinander eingebaut sind. In einem von einer Batterie b ,gespeisten Empfangskreis a liegen in bekannter Weise ein Mikrophon h und die Primärwicklung d eines Transformators d, d, In dem Abstimmkreis i sind nun gemäß der Erfindung zwei in entgegengesetztem Sinne gewickelte. Spulen g, f vorgesehen, die in der Ausführungsform der Fig. i achsial übereinander und in derjenigen der Fi;g.2 nebeneinander angeordnet sind. Die Wirkung @dieser Anordnung ist ohne weiteres ersichtlich; das außerdem in dem Abstimmkreis. noch vorhandene Abstimmelement ist eine Kapazität c, e ist ein Telephon. ,To explain the idea of the invention, two exemplary embodiments are shown schematically in the drawing, namely FIG. 1 shows an arrangement with two axially superimposed tuning coils and FIG. 2 shows an arrangement in which the tuning coils are installed next to one another. In a receiving circuit a fed by a battery b, a microphone h and the primary winding d of a transformer d, d are located in a known manner. In the tuning circuit i, according to the invention, two are now wound in opposite directions. Coils g, f are provided, which in the embodiment of FIG. 1 are arranged axially one above the other and in that of FIG. 2 next to one another. The effect of this arrangement is readily apparent; that also in the voting group. voting element still present is a capacity c, e is a telephone. ,
Claims (2)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE319158T | 1918-01-01 |
Publications (1)
Publication Number | Publication Date |
---|---|
DE319158C true DE319158C (en) | 1921-08-11 |
Family
ID=6151586
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE1918319158D Expired DE319158C (en) | 1918-01-01 | 1918-01-01 | Electrical tuning circuit for underwater sound apparatus, especially for receiver purposes |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE319158C (en) |
-
1918
- 1918-01-01 DE DE1918319158D patent/DE319158C/en not_active Expired
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