微机串行口数据采集与一组力学实验研究  

Data collection by serial port in the micro-computer and a group of dynamics experiments

作　　者：汪逸新[1] 张惠国[1] 

机构地区：[1]常熟理工学院教育技术中心,江苏常熟215500

出　　处：《大学物理》2004年第9期37-40,共4页College Physics

摘　　要：分别研究了微机串行通讯口和定时器原理,借助C语言编程,实现了微机对外界时间信息的数据采集.在此基础上,开展了数字毫秒计制作、重力加速度及弹性模量检测的研究.The principles of the serial port and timer in the micro-compute are studied, and the methods to collect the data of time information by C program is introduced. Based on this, the researches on the production of mini-second counter and measurement of the acceleration of gravity and elastic modulus are carried out.

关 键 词：串行通讯口 定时器 C语言 数字毫秒计 重力加速度 弹性模量 

分 类 号：O333[理学—一般力学与力学基础] TP399[理学—力学]