Small thrust measurement system of electric thruster

A small thrust measurement method was presented in theory for precision measurement of small thrust of low power electric thruster, namely when thrust measure balance is in the state of indifferent equilibrium (or near to the state of indifferent equilibrium), electromagnetism force feedback compensation can eliminate the influence of connection of gas line and electric wire and feedback electromagnetism force can compensation thrust of thruster. Thrust values of different operational mode of arcjet thruster were measured. Experiment validates that this measure method can measure small thrust of electric thruster accurately.