FIELD: physics.
SUBSTANCE: noise source has an electroacoustic transducer and an electric noise signal generator. The source also has an electro-vibration transducer. The housing of the noise source and the electroacoustic transducer form a resonant chamber and the electro-vibration transducer is rigidly mounted on the inner wall of the base of the housing of the noise source. The noise generator is double-channel programmable, with possibility of simultaneous operation of both channels or one of them. The output of the first channel of the generator is connected to the electroacoustic transducer, and the output of the second channel is connected to the electro-vibration transducer. The eletroacoustic transducer and electro-vibration transducer are piezoceramic transducers.
EFFECT: broader functionalities, high efficiency of generating acoustic noise and reduced overall dimensions.
3 cl, 4 dwg
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