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本文介绍一种适用于二氧化碲晶体声光扫描器的驱动信号源.它能根据不同的实际需要,输出可变扫描周期和带宽的线性扫频信号.该机设有石英晶体振荡器,以提供标准扫描周期;设有多位单频输出装置,以便于光路器件之调整和器件频率复盖及频带内各点衍射效率等性能测试;还设有二极管脉冲调制门电路,不仅可利用机内各级分频器之输出脉冲进行内调制,亦可外接文字图象之数字化同步脉冲,对扫频载波或频带内任一单频载波实行外调制.可对系统的工作状态、回波反射及线性度等进行实际观测.本机附有同步脉冲信号输出.该机可作为电子计算机系统之输入装置及输出装置中声光扫描器的驱动信号源.
This article describes a suitable for tellurium dioxide crystal Acousto-optic scanner drive signal source. It can according to different actual needs, output variable sweep period and bandwidth linear sweep signal. The machine is equipped with a quartz crystal oscillator to Provide a standard scan cycle; with a number of single-frequency output device to facilitate the adjustment of optical devices and device frequency coverage and the diffraction efficiency of various points in the band and other performance tests; also equipped with diode pulse modulation gate, not only can be used within the machine The output pulses of the divider at all levels can be internally modulated, and the digitized sync pulses of the external image can be externally applied to modulate the frequency of any single frequency carrier in the frequency-swept carrier or the frequency band. The working status of the system, echo reflections and Linearity, etc. The machine is equipped with synchronous pulse signal output, which can be used as the driving signal source of the acousto-optic scanner in the input device and the output device of the electronic computer system.