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本文叙述应用于听觉研究的微计算机系统。该系统包括:多种波形发生器、专用键盘、显示屏、接口和4个微计算机芯片8085等。外围有XY记录仪、示波器、照相机等。系统能产生参数可编程序的复杂声音;处理实验动物生物电脉冲;能按获得的结果自动改变实验的步骤;在XY记录仪上以直方图形式画出实验结果。系统具有多个常用实验程序,操作简易。在其EPROM中有许多子程序可供调用,用户能按自己的意图方便地编写新的程序。设计中采用数字和模拟电路相结合,使系统能以很少的硬件和资金获得合宜的性能。
This article describes the micro-computer system used in auditory research. The system includes: a variety of waveform generator, a dedicated keyboard, display, interface and four micro-computer chip 8085 and so on. External XY recorder, oscilloscope, camera and so on. The system can generate complex programmable parametric sounds; handle bioelectrical pulses of experimental animals; automatically change the experimental steps according to the results obtained; and plot experimental results on a XY recorder in histogram. System has a number of commonly used experimental procedures, easy to operate. There are many subprograms available in its EPROM for the user to write new programs as they wish. The combination of digital and analog circuitry in the design allows the system to achieve desirable performance with little hardware and money.