引论 功能齐全、价格低廉的微计算机,近几年来得到了广泛的应用,在控制、探测、实验室数据处理等方面其影响正在不断扩大。本文介绍的是由8位APPLE Ⅱ微机所组成的数据采集系统,用于测量和计算气体对声驻波的吸收。这种测量是在谐振管中进行。开始时,用一个声源在管内激励,然后 Introduction Microcomputer with complete functions and low price has been widely used in recent years, and its influence in control, detection and laboratory data processing is expanding. This article describes the 8-bit APPLE II computer data acquisition system for measuring and calculating gas absorption of standing sound waves. This measurement is made in a resonance tube. Initially, use a sound source to excite the tube, then