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物理教学实验中,“布朗运动”实验的常规做法都是教师先调整好显微镜,再让学生轮流观看,可见度小又费时,效果不佳。目前有些电教录像带,图像不清,看不见微粒的运动。我根据光学成像原理,在显微镜的目镜上方再加一个自制的放大镜套筒装置,适当增大放大倍数。用摄像机给在显微镜下观看的微粒进行摄像,信号直接输入电视机,在屏幕上可看到清晰的“分子无规则运动”的图像,
In the physics teaching experiment, the conventional practice of the “Brown movement” experiment is that the teacher first adjusts the microscope well and then lets the students take turns to watch. The visibility is small and time-consuming, and the effect is not good. At present, some audio-visual video tapes have unclear images and do not see the movement of particles. Based on the principle of optical imaging, I added a self-made magnifier sleeve device above the eyepiece of the microscope to increase the magnification appropriately. Using a video camera to take pictures of the microscopic particles, the signal is directly input to the TV, and a clear “molecularly irregular motion” image can be seen on the screen.