CAJ | 학술논문

为了实现空间微推力器的高精度推力测量，提出了一种电容桥式差分读出的双单摆推力测量方案，其测量频带从10-3 Hz～0．016 Hz，可实现分辨率为0．1μN，量程1 mN的微推力测量。与意大利帕多瓦大学设计的双单摆微推力差分测量系统相比，方案具有更强的共模抑制能力，操作简单易行。
위료실현공간미추력기적고정도추력측량，제출료일충전용교식차분독출적쌍단파추력측량방안，기측량빈대종10-3 Hz～0．016 Hz，가실현분변솔위0．1μN，량정1 mN적미추력측량。여의대리파다와대학설계적쌍단파미추력차분측량계통상비，방안구유경강적공모억제능력，조작간단역행。
In order to test and calibrate electric propeller thrust with a resolution of 0.1 μN, a design using two pendulumswas propased.By subtracting the signal of the reference pendulum from the signal of measuring pendulum, most commonmode noise can be rejected.By adopting capacity-bridge as displacement sensor, force from 0.1 μN to 1 mN and frequencyfrom 10-3 Hz to 0.016 Hz can be measured to an accuracy of 0.1 μN.