电子计算机及其应用的迅速发展已使之成为分析仪器不可缺少的一部分。我们在国内首次实现了以小型电子计算机控制光电直读光谱仪的基础上,又将微型电子计算机用于对光电直读光谱仪的控制。根据微型计算机结构及输入输出总线工作方式和特点,我们自行设计制造了接口。本文着重介绍了系统接口逻辑设计、电路设计及其功能。 (一)系统工作原理 The rapid development of electronic computers and their applications has made them an integral part of analytical instruments. For the first time in China, we realized the control of photoelectric direct-reading spectrometer with a small electronic computer and the miniature electronic computer for the control of a photoelectric direct reading spectrometer. According to the microcomputer structure and the input and output bus work and features, we design and manufacture of the interface. This article focuses on the system interface logic design, circuit design and function. (A) system working principle