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首页> 外文期刊>Japanese journal of applied physics >Development of omnidirectional audible sound source using facing ultrasonic transducer arrays driven at different frequencies
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Development of omnidirectional audible sound source using facing ultrasonic transducer arrays driven at different frequencies

机译:使用不同频率驱动的超声换能器阵列的全向声音声源的开发

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摘要

We present an audible sound source with omnidirectional patterns in the horizontal plane using facing ultrasonic transducer arrays driven at different frequencies. In this experiment, ultrasonic transducer arrays were placed face-to-face on a straight line. They radiated sound with different ultrasonic frequencies from each side. Through elementary examination, we realized directionality close to omnidirectional in the horizontal plane using ultrasonic transducer arrays arranged in a circular shape, which is rotationally symmetric in all degrees. In addition, using an acoustic camera, a sound source region was found to be generated between the arrays.
机译:我们在水平面中呈现一个具有全向模式的可听声源,使用以不同频率驱动的面对超声换能器阵列。 在该实验中,超声换能器阵列在直线上面对面放置。 它们用来自每侧的不同超声波频率辐射声音。 通过基本检查,我们使用布置在圆形形状的超声换能器阵列,实现了靠近水平平面中的全向的方向性,该阵列在圆形形状中旋转对称。 另外,使用声学相机,发现声源区域在阵列之间产生。

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