The Micro-Thrust Automatic Measurement System Of Stationary Plasma Thruster
We describe the micro-thrust automatic measurement system of stationary plasma thruster in the article,The system can carry a thruster and power supply less than 3kg weight.Thrust capacity is from 1 to 100 mN,and thrust expend uncertainty is 0.2 mN(k=2).The system is based on the torsion balance principle.The thrust of the thruster makes torque to the pivot.This torque is balanced by the electromagnetic compensate torque generated by the measurement system.The rotation angle of this system is measured by the position sensor,the electromagnetic interference single comes from the speed sensor,the electromagnetic compensate torque is from the torque sensor.This is a closed circuit and automatic measurement system.The additional forces generated by the weight,the air supply system and the wires of the thruster have been separated from the micro-thrust in this system.The influence of deadweight,air supply system and power supply system of thruster on exact measurement of micro-thrust have been eliminated,so micro-thrust of thruster can be measured precisely and automatically.
Stationary plasma thruster micro- thrust measurement
Li jing Mei hong-wei Wang geng
Beijing Aerospace Institute for Metrology and Measurement Technology , Beijing 10076,China
国际会议
2012第八届精密工程测量和仪器仪表国际研讨会(ISPEMI2012)
成都
英文
1-3
2012-08-08（万方平台首次上网日期，不代表论文的发表时间）