US 12,258,150 B2
Digital filter based method for measuring thrust response time of satellite-borne micro-thruster
Yanji Hong, Beijing (CN); Xiaohui Feng, Beijing (CN); Xing Jin, Beijing (CN); Jifei Ye, Beijing (CN); Haichao Cui, Beijing (CN); and Gaoping Feng, Beijing (CN)
Assigned to Aerospace Engineering University of the People's Liberation Army (PLA) Strategic Support Force, Beijing (CN)
Filed by Aerospace Engineering University of the People's Liberation Army (PLA) Strategic Support Force, Beijing (CN)
Filed on Oct. 12, 2022, as Appl. No. 17/964,466.
Claims priority of application No. 202111352455.6 (CN), filed on Nov. 16, 2021.
Prior Publication US 2023/0150696 A1, May 18, 2023
Int. Cl. B64G 1/36 (2006.01); G06F 17/13 (2006.01)
CPC B64G 1/36 (2013.01) [G06F 17/13 (2013.01)] 18 Claims
OG exemplary drawing
 
1. A digital filter based method for measuring thrust response time of a satellite-borne micro-thruster, comprising the following steps:
S1: zeroing non-zero initial conditions of a thrust measurement system to obtain an oscillating differential equation for the thrust measurement system after variable substitution;
S2: connecting the digital filter in series behind the thrust measurement system after variable substitution to obtain an equivalent-sensitivity high-frequency thrust measurement system;
S3: determining a system response of the equivalent-sensitivity high-frequency thrust measurement system;
S4: determining and reading thrust response time of the satellite-borne micro-thruster from the system response; and
S5: inversely computing thrust to be measured by means of the equivalent-sensitivity high-frequency thrust measurement system.