温场可编程控制的小型空间晶体炉设计与测试

详细介绍了一台温场可编程控制的小型空间晶体炉。其工作原理是，在计算机控制下，炉膛温场发生有序地变化，完成晶体生长过程。由于没有机械运动部件，从而彻底消除了机械振动对微重力环境的干扰。此炉是为返回式卫星搭载试验而设计，配备以Ｉｎｔｅｌ８０ｃ３１为核心的计算机温度控制及数据采集系统。该系统采用数字ＰＩＤ方式独立调节加热器中７个结构相同的加热单元的温度，可以编程实现多种温场变化模式。

Design and Test of a Compact Furnace for Crystal Growth in Space with Program-controlled Temperature Profile

This paper introduces a compact furnace for crystal growth in space,which temperature profile is program=controlled.The basis of this furnace is that,the furnace temperature profile changes automatically under the control of a computer system to implement the process of crystal growth,so there is no mechanical motion that would produce deleterious vibration to the microgravity environment.This furnace is constructed from 7 individual controlled heating zones.An advanced computer system,which is based on the Intel 80c31 micro-processor,is used for the temperature control of each heating zone (PID control) and the data collection.In the furnace,several different temperature profiles have been created.The performance of this furnace have been tested on earth,and the results show that it can be a precisely controlled,multi-purpose furnace for crystal growth in the Chinese returnable satellite.