Thrust Measurement of an Independent Microwave Thruster Propulsion Device with Three-Wire Torsion Pendulum Thrust Measurement System
Yang Juan, Xianchuang Liu, Yu-Quan Wang, Mingjie Tang, Luo Li-tao, Jin Yizhou, Ning Zhong-xi · Journal of Propulsion Technology · 2016
In order to explore the thrust performance of microwave thruster,the thrust produced by micro-wave thruster system was measured with three-wire torsion pendulum thrust measurement system and the mea-surement uncertainty was also studied,thereby judging the credibility of the experimental measurements. The re-sults show that three-wire torsion pendulum thrust measurement system can measure thrust not less than 3mN un-der the existing experimental conditions with the relative uncertainty of 14%. Within the measuring range of three-wire torsion pendulum thrust measurement system,the independent microwave thruster propulsion device did not detect significant thrust. Measurement results fluctuate within ± 0.7mN range under the conditions 230W microwave power output,and the relative uncertainty is greater than 80%.