Development status of the micro thrust measurement technology based on cantilever beam structure

The micro thrust measurement device based on the cantilever beam can provide the evaluation platform for the mechanical properties of satellite micro thrusters, thus improving the reliability of satellites. With the principle of dividing methods of measurement into direct bearing and plume measuring, this thesis introduces several kinds of typical measuring devices based on the cantilever beam structure. The thesis also introduces the current reference force, such as weights, electromagnetic force and electrostatic force, and further introduces the relevant calibration methods. Displacement sensor calibration methods are introduced as well. It is concluded that further study of dip angle, non-axial alignment and other factors should be taken into consideration in order to improve measurement accuracy.