The invention belongs to the field of teaching instruments and concretely relates to a novel
standing wave demonstrating instrument, which aims to provide the novel
standing wave demonstrating instrument which not only can be used for demonstrating transverse standing
waves, but also can be used for demonstrating vertical standing
waves, can also be used for demonstrating the relation of
circular motion and
simple harmonic motion and can be used for adjusting the frequency of the standing
waves. The invention provides the following technical scheme that: the novel standing-wave demonstrating instrument is provided with a frame, wherein a direct-current motor is fixed on the frame, a disk is installed on an output shaft of the direct-current motor, a short shaft is arranged on the disk, a T-shaped clamping sleeve is hung on the short shaft, the T-shaped clamping sleeve can upwards and downwards move under the restriction of a guiding sleeve, the lower end of the T-shaped clamping sleeve is provided with a
small hole, one end of a vibrating body for forming the standing waves is fixed on the
small hole, and a heavy object is hung at the other end of the vibrating body. Compared with a
standing wave demonstrating teaching aid used at present, the novel standing wave demonstrating instrument has the advantages of multiple functions, small size, low manufacturing cost, safety, reliability, convenience in carrying and the like.