Aerospace Engineering University of the People's Liberation Army (pla) Strategic Support Force

Gaoping Feng

Xing Jin

Yanji Hong

Haichao Cui

Jifei Ye

Xiaohui Feng

The present disclosure belongs to the technical field of space satellite propulsion, and particularly relates to a digital filter based method for measuring thrust response time of a satellite-borne micro-thruster. The method for measuring thrust response time in the present disclosure includes the following steps: S: zeroing non-zero initial conditions of a torsional pendulum thrust measurement system to obtain an oscillating differential equation for a thrust measurement system after variable substitution; S: connecting the digital filter in series behind the thrust measurement system after variable substitution to obtain an equivalent-sensitivity high-frequency thrust measurement system; S: determining a system response of the equivalent-sensitivity high-frequency thrust measurement system; S: determining and reading thrust response time of the satellite-borne micro-thruster from the system response; and S: computing thrust to be measured by means of the system response inversely, and further confirming the thrust response time.

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Beijing, China

Gaoping Feng