Akustisk transduser og undervanns-lydapparat

An acoustic transducer 1 has a first cylindrical portion 1 A and a second hemispherical portion 1 B on which a plurality of transducer elements 10 a , 10 b are arranged. The transducer elements on the cylindrical portion are arranged to have six nearest neighbors. The arrangement may be such that th...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	Suetoshi, Ryouichi, Watanabe, Kenichi, Tokuda, Koji, Nishimori, Yasushi, Tokuyama, Kouzo
Format:	Patent
Sprache:	nor
Schlagworte:	ACOUSTICS ACOUSTICS NOT OTHERWISE PROVIDED FOR ANALOGOUS ARRANGEMENTS USING OTHER WAVES DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION ORRERADIATION OF RADIO WAVES MEASURING METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING,NOISE OR OTHER ACOUSTIC WAVES IN GENERAL MUSICAL INSTRUMENTS PHYSICS RADIO DIRECTION-FINDING RADIO NAVIGATION SOUND-PRODUCING DEVICES TESTING
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Beschreibung
Zusammenfassung:	An acoustic transducer 1 has a first cylindrical portion 1 A and a second hemispherical portion 1 B on which a plurality of transducer elements 10 a , 10 b are arranged. The transducer elements on the cylindrical portion are arranged to have six nearest neighbors. The arrangement may be such that the six transducer elements surrounding a given element describe the vertices of a regular hexagon. The hexagons thus described may be aligned so that two of their sides are parallel to the axis of the cylinder. The elements on the hemispherical portion may be arranged so that some elements have five nearest neighbors and others have six (the neighboring elements describing, for example, the vertices of hexagons and pentagons respectively). An underwater sounding apparatus may be constructed using the transducer.