关键词: 阀门, 动作, 量化检测, 应变传感器, 质谱, 泄漏

Abstract: Valves are key equipments in the pressurization and propellant feed system of lunch vehicles. They are used to add and spill the propellant, to measure and maintain the tank pressure and so on. It is important to detect the valve action for the safe operation of valves. The development of aerospace sets a still higher demand on the valve action detection. Up to now, the cutoff and the seal level cannot be quantitatively judged for the valves of lunch vehicles. The mechanism for the valve action detection is designed. The simulation and the experiment are carried out. The experiment results verified that the valve action can be quantitatively detected by the proposed method.

Key words: Valve, Action, Quantization detection, Strain sensor, Mass spectrum, Leakage