BIAN Xing, SHAO Ming-xue, YANG Fu-quan, et al. STUDY OF MICRO-THRUST MEASUREMENT USING DOUBLE PENDULUM[J]. VACUUM AND CRYOGENICS, 2014, 20(3): 136-139. DOI: 10.3969/j.issn.1006-7086.2014.03.003
Citation:
BIAN Xing, SHAO Ming-xue, YANG Fu-quan, et al. STUDY OF MICRO-THRUST MEASUREMENT USING DOUBLE PENDULUM[J]. VACUUM AND CRYOGENICS, 2014, 20(3): 136-139. DOI: 10.3969/j.issn.1006-7086.2014.03.003
BIAN Xing, SHAO Ming-xue, YANG Fu-quan, et al. STUDY OF MICRO-THRUST MEASUREMENT USING DOUBLE PENDULUM[J]. VACUUM AND CRYOGENICS, 2014, 20(3): 136-139. DOI: 10.3969/j.issn.1006-7086.2014.03.003
Citation:
BIAN Xing, SHAO Ming-xue, YANG Fu-quan, et al. STUDY OF MICRO-THRUST MEASUREMENT USING DOUBLE PENDULUM[J]. VACUUM AND CRYOGENICS, 2014, 20(3): 136-139. DOI: 10.3969/j.issn.1006-7086.2014.03.003
STUDY OF MICRO-THRUST MEASUREMENT USING DOUBLE PENDULUM
In order to test and calibrate electric propeller thrust with a resolution of 0.1 μN, a design using two pendulums was propased. By subtracting the signal of the reference pendulum from the signal of measuring pendulum, most common mode noise can be rejected. By adopting capacity-bridge as displacement sensor, force from 0.1 μN to 1 mN and frequency from 10-3 Hz to 0.016 Hz can be measured to an accuracy of 0.1 μN.
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