关键词: 低温推进剂, 液位测量, 滤波算法

Abstract: Aiming at the problem of continuous liquid level measurement in cryogenic propellant utilization system, a filtering algorithm based on flow level measurement is proposed. The basic principle of the algorithm is introduced, and mathematical modeling and digital simulation are carried out. Through the analysis of the simulation results, it is proved that the algorithm can effectively solve the measurement error caused by the liquid sloshing in the rocket flight and has certain engineering application value.

Key words: Cryogenic propellant, Liquid level measurement, Filter algorithm