远程智能光强度检测器的研究

本文研究的内容是远程智能光强检测系统。为了实现实验测量的自动化、高精度、和无线传输功能,我们利用STC89C52单片机控制电机转动来带动光强检测芯片移动,并通过无线传输模块,串口传输数据至计算机。结合VB绘图功能实现各种光强的实时显示,从而绘出光强分布图像。从单缝衍射的实验测量结果,由VB图像可得到主极强到第一极弱的距离,通过公式算出光栅常数。与原手动实验相比,我们的仪器不仅能直观地看到单缝衍射条纹的光强分布情况,同时减少了手动操作带来的误差,使得计算结果更精确。

The purpose of this study is to investigate the remote intelligent light intensity detection system. In order to achieve automation, high precision, and wireless transmission function of experimental measurements, we utilized STC89 C52 single-chip microcomputer to control the motor rotation and drive the light intensity detection chip to transmitting data to a computer through the wireless transmission module and serial port. By combining the real-time display of various light intensities and VB drawing function, the light intensity distribution image can be drawn. Based on the experiment results of single slit diffraction, the distance from the main pole to the first pole can be obtained from the VB image, and the grating constant can be calculated by the formula. Compared with the original manual experiment,our device can not only intuitively observe the light intensity distribution of single slit diffraction fringe, but also reduce the manual operation error and make the calculation result more accurate.

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