The utility model relates to the technical field of
simple harmonic motion demonstration teaching aids, and discloses a
simple harmonic motion demonstration instrument. The
simple harmonic motion demonstration instrument comprises a semi-
open shell and a
mobile phone, a single-line guide rail is fixedly connected to the bottom wall of an inner cavity of the semi-
open shell, and frame plates distributed left and right are fixedly connected to the top of the single-line guide rail. The teaching aid has the advantages that the teaching aid has an integrated framework, is convenient for teachers to transport, is more neat in appearance, more accurate in imaging, more accurate in result, good in experiment demonstration effect, cost-saving, obvious in experiment demonstration phenomenon, simple to operate and convenient for teachers to demonstrate, and the teaching aid is abstracted into concrete, so that quantitative exploration is changed into qualitative exploration, and the like. The problems that in a sand
pendulum experiment, control is not easy, a teacher drags a wood board manually, and white paper is difficult to move at a
constant speed are solved, and the problems that in a stroboscopic photographing method, the requirements for photographing hardware and picture
processing technology are high, pictures are difficult to process and verify, the real-time performance is poor, and the requirement for light is high are solved.