液体火箭发动机推进剂检漏技术的综述

A SURVEY ON PROPELLANT LEAK DETECTION TECHNIQUES FOR LIQUID ROCKET PROPULSION SYSTEM

在液体火箭发动机发射前，必须进行完整性试验。完整性试验包括对推进剂和其它液体系统的泄漏检测。建立一个能实现推进剂泄漏故障自动检测的系统是很必要的。本文对液体火箭发动机的泄漏故障检测方法进行了综述，对已用于或可能用于液体火箭发动机检漏的技术进行分类和详细评述，指出了液体火箭发动机检漏技术的几个发展方向。

The integrity test of Liquid Rocket Engine (LRE) must be carried out before its launch.The tests include the leak detection of liquid propellant and other liquid systems.It is necessary to set up an automated propellant leak detection system.This paper summarizes the leak detection techniques of LRE,which are classified into groups and considered in details.Finally,several prospects of the leak detection techniques are presented.