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简易横波、纵波发生器一般现有的机械波示教器只是波动过程的模拟,虽然能清楚地说明波的传播规律(各质点依次作同样的振动),但没有显示出各质点间的弹性联系。因而不能回答横波和纵波的发生条件,没有揭示出波动现象的物理本质。建议自制下面的这个仪器。做一个尺寸为600mm×450mm 的木框架,用橡皮筋(以截而积为1mm~2的弹性较合适)吊17块等
Simple shear wave, longitudinal wave generator General existing mechanical wave teach pendulum is only the simulation of wave process. Although it can clearly explain the wave propagation rules (the particles make the same vibrations in sequence), it does not show the elastic connection between the particles. Thus failing to answer the conditions of occurrence of transverse waves and longitudinal waves and failing to reveal the physical nature of fluctuations. It is recommended to make this instrument below. Make a wooden frame with a size of 600mm × 450mm, use a rubber band (more suitable for the elasticity of 1mm ~ 2 in cross section), etc.