AT68674B - Membrane transducer for underwater sound signals. - Google Patents

Membrane transducer for underwater sound signals.

Info

Publication number
AT68674B
AT68674B AT68674DA AT68674B AT 68674 B AT68674 B AT 68674B AT 68674D A AT68674D A AT 68674DA AT 68674 B AT68674 B AT 68674B
Authority
AT
Austria
Prior art keywords
membrane
transmission element
sound signals
underwater sound
membrane transducer
Prior art date
Application number
Other languages
German (de)
Original Assignee
Signal Gmbh
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 Signal Gmbh filed Critical Signal Gmbh
Application granted granted Critical
Publication of AT68674B publication Critical patent/AT68674B/en

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  • Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
  • Transducers For Ultrasonic Waves (AREA)

Description

  

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  Membrangeber für   Unterwasserschallsignale.   
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   Der Stiel der Stimmgabel D ist an der Bordwand A befestigt. Zwischen den Zinken   ist das Elektromagnetpaar 0 angeordnet. Wird das Elektromaguetpaar erregt, so gerät die Stimmgabel D in Schwingungen, die sich im verlangten Übersetzungsverhältnis auf die   Bordwand A und von dieser   auf das anstossende Wasser B libertragen.   



   Die in Fig. 2 dargestellte Ausführungform unterscheidet sich von der Ausführungsform nach Fig. 1 dadurch, dass zwischen den Stiel der Stimmgabel D und die Membran   A   eine Feder H eingeschaltet ist. Es findet also zwischen dem Stiel der Gabel und der Membran noch eine weitere Amplitudenübersetzung statt und die Stimmgabel braucht daher nicht so bemessen zu sein, dass sie selbst den vollen Betrag der verlangten Über- setzung hergibt.



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  Membrane transducer for underwater sound signals.
 EMI1.1
 

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   The stem of the tuning fork D is attached to the side wall A. The pair of electromagnets 0 is arranged between the prongs. If the pair of electric magnets is excited, the tuning fork D begins to vibrate, which is transmitted in the required transmission ratio to the side wall A and from there to the adjoining water B.



   The embodiment shown in FIG. 2 differs from the embodiment according to FIG. 1 in that a spring H is connected between the stem of the tuning fork D and the membrane A. A further amplitude translation takes place between the stem of the fork and the diaphragm and the tuning fork therefore does not need to be dimensioned in such a way that it itself provides the full amount of the required translation.

Claims (1)

PATENT. ANSPRÜCHE : 1. Membrangeber für Unterwasserschallsignale, bei welchem zwischen einem Schwingungserzeuger und die als Membram wirkende, an das Wasser anstossende Wand eines Hohlkörpers (z. B. die Schifawandung) ein Übertragungsglied eingeschaltet ist, dadurch gekennzeichnet, dass das Übertragungsglied auf die Periode der erregenden Kräfte abgestimmt ist. i. Membrangeber nach Anspruch 1, dadurch gekennzeichnet, dass der Schwingungserzeuger an solchen Punkten angreift, die grosse Amplituden ausführen, nnd die Membran an solchen Punkten angeschlossen ist, die kleine Amplituden ausführen. PATENT. EXPECTATIONS : 1. Membrane transducer for underwater sound signals, in which a transmission element is switched on between a vibration generator and the wall of a hollow body (e.g. the ship's wall) acting as a membrane and abutting the water, characterized in that the transmission element is matched to the period of the exciting forces is. i. Membrane transmitter according to Claim 1, characterized in that the vibration generator acts on those points which produce large amplitudes, and the membrane is connected to those points which produce small amplitudes. 3. Membrangeber nach Anspruch 1 und 2, dadurch gekennzeichnet, dass als Übertragungsglied eine möglichst dämpfungsfrei schwingende Stimmgabel oder Zunge verwendet wird, die mit dem Erreger in der Nähe eines Schwingungsbauches, mit dem Radiator in der Nähe eines Schwingungsknotens gekuppelt ist. 3. Membrane transducer according to claim 1 and 2, characterized in that a tuning fork or tongue which vibrates as free of damping as possible is used as the transmission element, which is coupled to the exciter near an antinode and to the radiator near a vibration node. 4. Membrangeber nach Anspruch 1 bis 3, dadurch gekennzeichnet, dass die Kupplung des Übertragungsgliedes mit Erreger und Radiator in der Nähe von Schwingungsbäucheu oder-knoten durch elastische Federn erfolgt 4. Membrane encoder according to claim 1 to 3, characterized in that the coupling of the transmission element with the exciter and radiator is carried out in the vicinity of the antinodes or nodes by elastic springs
AT68674D 1912-06-24 1913-06-16 Membrane transducer for underwater sound signals. AT68674B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE68674X 1912-06-24

Publications (1)

Publication Number Publication Date
AT68674B true AT68674B (en) 1915-05-10

Family

ID=5634543

Family Applications (1)

Application Number Title Priority Date Filing Date
AT68674D AT68674B (en) 1912-06-24 1913-06-16 Membrane transducer for underwater sound signals.

Country Status (1)

Country Link
AT (1) AT68674B (en)

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