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G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
G10K7/00—Sirens
G10K7/005—Ultrasonic sirens
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Engineering & Computer Science
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Acoustics & Sound
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Apparatuses For Generation Of Mechanical Vibrations
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Physical Or Chemical Processes And Apparatus
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Reaction of a submerged cylindrical shell to a pressure wave propagated at supersonic velocity in the direction of the generator(Submerged circular cylindrical shell reaction to pressure wave propagated at supersonic speed in direction of sound generator)