| 谢 琛,傅 骁,段发阶,马本富,蒋佳佳,刘昌文.高精度反力矩测量系统研制及标定[J].电子测量与仪器学报,2021,35(8):29-37 |
| 高精度反力矩测量系统研制及标定 |
| Development and calibration of high precision countertorque measurement system |
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| DOI： |
| 中文关键词: 反力矩 力矩器 角度传感器 高精度 力矩标定 不确定度分析 |
| 英文关键词:counter moment torques angle sensor high precision moment calibration uncertainty analysis |
| 基金项目:国家重点研发计划项目(2020YFB2010800)、国家自然科学基金项目(61905175,51775377,61971307)、国家科技重大专项(2017 V 0009)、霍英东教育基金会资助(171055)、中国博士后科学基金(2020M680878)项目资助 |
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| 中文摘要: |
| 针对陀螺仪电机转矩波动高精度微力矩测量需求,提出了一种基于力矩器与角度传感器的高精度反力矩测量系统方
案,基于共轴传递的阶梯轴结构,采用弹簧状游丝柔性连接外部接线,降低接线引入的弹性干扰力矩,实现了转矩波动的高精度
测量;在传统砝码标定基础上,开展了测量系统静态标定及不确定度分析。 实验结果表明,与优化前相比,系统测量精度提高了
90%,在-10~ 10 mN·m 的量程内,测量精度高达 0. 06%,线性度优于 0. 03%,漂移误差优于 0. 5 μN·m/ 2 h,不确定度优
于 0. 025%。 |
| 英文摘要: |
| In response to the need for high-precision micro-torque measurement of the torque fluctuation of the gyroscope motor, a highprecision counter-torque measurement system based on a torque device and an angle sensor is proposed. Based on a coaxially transmitted
stepped shaft structure, the external wiring is flexibly connected with spring like hairspring to reduce the elastic interference torque
caused by wiring, and realize the high-precision measurement of the torque fluctuation; based on the traditional weight calibration, the
static calibration and uncertainty analysis of the measurement system are carried out. The experimental results show that the system
measurement accuracy is improved by 90% compared to before optimization. In the range of -10~ 10 mN·m, the measurement accuracy
is as high as 0. 06%, the linearity is better than 0. 03%, and the drift error is better than 0. 5 μN·m/ 2 h, the uncertainty is better than
0. 025%. |
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