Coaxial cylindrical wave horn
A cylindrical wave, coaxial technology, applied in the direction of frequency/direction characteristic devices, etc.
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[0029] The present invention will be further described below in conjunction with the accompanying drawings of the description.
[0030] Such as figure 1 , a schematic diagram of a point sound source and a spherical wave, as shown, the wave front generated by the point sound source 2 is a concentric sphere, which is called a spherical wave. Imagine a spherical sound source in an infinite homogeneous medium, its surface expands and contracts rapidly, and every point on the surface vibrates with the same phase and amplitude, and the wave radiating to the surrounding medium is a spherical wave. This sound wave is spherically symmetrical, that is, the magnitude of the sound pressure is only related to the distance from the center of the sphere. A sound source of any shape, as long as its size is much smaller than the wavelength, can be regarded as a point sound source, radiating spherical waves. For spherical waves, the sound intensity at any distance from the sound source is inv...
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