固体推进剂线扫描摄象实时燃速测定系统

THE SYSTEM OF TIMELY MEASUREMENT OF BURN RATES OF SOLID PROPELLANTS BY LINE SCAN

本文将微处理机和固体线扫描摄象机联接起来,用于测定固体推进剂的燃速及其燃烧过程。此测试系统是一种新的快速光电测量装置。文中将A型和B型两种固体推进剂瞬间燃烧过程的光学图象通过CCD转为数字信号输入到微处理机中进行计算,得出乎均燃速、燃烧压力指数等。然后,用绘图仪绘出药柱长度与燃烧时间的关系图,并将上列数据列表打印、存储。

Owing to the emerging of microcomputer and the application of line scan camera, it is possible for us to link up these two modern instruments and to apply them to measure the burn rate and combustion process of solid propellants. This is a new rapid photo-electric method. In this paper, the instantaneous optical image of combustion process of A and B two propellants is transformed to numerical signals by CCD line scan camera. Then the signals enter a PS-80 microcomputer and stored in its memories. We can obtain the figure of pellet length versus time by plotter. the average burn rate and pressure exponent, and various tables of data by printer. All data can be stored in tapes.