THE PRINCIPLES, METHODS AND TECHNIQUES FOR LIQUID CONTENT MEASUREMENT IN SPACE（2）

The general principles and methodological principles to measure the liquid content were researched in details,and the possibilities and feasibilities to apply the methods corresponding to these principles in space were discussed for the purpose to measure the liquid content on spacecraft.It was also analysed and assessed that the suitabilities of advanced techniques to liquid system models,which were classified based on the practical liquid sysytems on spacecrafts.