| 简介 |
A generator for producing infrasound wave, which includes an electromagnetic vibratory generator for forcing the air vibrate to produce the infrasound wave, and a frequency control system for controlling the frequency of the vibratory generator. The vibratory generator comprises a high magnetic permeability long strip core beam (3), a plurality of rare earth permanent-magnet thin sheet provided around the core beam, a high magnetic permeability thin board (4) placed around the sheet and a plurality of layer coils supplied with alternate current provided between them. The coils are connected with a vibratory plate (1) through a nonmagnetic connected rod (2). The coils vibrate along the core beam, thereby drive the vibratory plate vibrating to produce infrasound wave. |
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