单缝衍射自动测量系统的研究

Research of the auto-measurement system for the single-slit diffraction

单缝衍射自动测量系统以单片机AT89S52为控制核心,控制步进电机带动光电池逐点测量衍射条纹光强,再通过串口把测量数据传给计算机处理、显示,减小了人工测量中由于移动光电池,或在读数、计算时出现的误差,达到比传统实验方法更高的精度,并可以节省大量的测量、计算工作量,实现单缝衍射实验的数据采集、计算处理自动化.

The system, using the AT89S52 single-chip microcomputer as control centre, step motor driving photo- electric cell is controlled to measure single-slit diffraction intensity point-by-point. Then these data will be sent to a computer by serial port, processed and displayed. With reducing the error in moving photoelectric cell, reading value, and calculating in manual measurement, the system could get higher precision than by traditional methods, and save much time. The system lets the automatization of data collecting, calculating and processing come true.