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电荷耦合器件(CCD)用于自动测量零件尺寸,是一种最先进的方法。本文结合有关的试验和研究,简要地说明了这种高速自动检测系统的基本工作原理;分析了CCD器件的输出信号波形与光学系统、被测零件的运动速度、CCD器件本身的性能参数及其它因素的关系,以及波形斜率、位置变化与检测精度、检测速度的关系;提出了分辨力、检测速度、多次扫瞄次数等主要设计参数的计算方法;以及在进行总体设计时如何根据予定的检测精度和检测速度,综合考虑并选定有关参数的方法和原则。
Charge-coupled devices (CCDs) are the most advanced method for automatically measuring part size. In this paper, the related experiments and research are briefly introduced to illustrate the basic working principle of the high-speed automatic detection system. The waveforms of the output signal of the CCD device and the optical system, the moving speed of the measured part, the performance parameters of the CCD device itself and others The relationship between the factors and the relationship between the waveform slope, the position change and the detection accuracy and the detection speed; the method of calculating the main design parameters such as the resolution, the detection speed, the number of times of scanning and the like; and how to design the main design parameters according to the predetermined Detection accuracy and speed, comprehensive consideration and selection of the parameters of the methods and principles.