TH823;TN
国家重点研发计划(2021YFC2202700)、国科大杭州高等研究院自主项目( 2022ZZ01009)、重庆市教委科学技术研项目(KJZDK202101506)、湖南省自然科学基金(2021JJ30564)项目资助
Wang Jiabin
1. School of Fundamental Physics and Mathematical Sciences, Hangzhou Institute for Advanced Study, UCAS,2. National Space Science Centre, Chinese Academy of Sciences,3. University of Chinese Academy of Sciences,Beijing 100049, China; 4. Gravitational Wave Universe Taiji Laboratory,Hangzhou Institute for Advanced Study, UCAS, 5. Key Laboratory of Gravitational Wave Precision Measurement of Zhejiang Province, UCASLong Jianfei
1. School of Fundamental Physics and Mathematical Sciences, Hangzhou Institute for Advanced Study, UCAS,2. National Space Science Centre, Chinese Academy of Sciences,3. University of Chinese Academy of Sciences,Beijing 100049, China; 4. Gravitational Wave Universe Taiji Laboratory,Hangzhou Institute for Advanced Study, UCAS, 5. Key Laboratory of Gravitational Wave Precision Measurement of Zhejiang Province, UCASXu Luxiang
1. School of Fundamental Physics and Mathematical Sciences, Hangzhou Institute for Advanced Study, UCAS,2. National Space Science Centre, Chinese Academy of Sciences,3. University of Chinese Academy of Sciences,Beijing 100049, China; 4. Gravitational Wave Universe Taiji Laboratory,Hangzhou Institute for Advanced Study, UCAS, 5. Key Laboratory of Gravitational Wave Precision Measurement of Zhejiang Province, UCASWu Mingshan
1. School of Fundamental Physics and Mathematical Sciences, Hangzhou Institute for Advanced Study, UCAS,2. National Space Science Centre, Chinese Academy of Sciences,3. University of Chinese Academy of Sciences,Beijing 100049, China; 4. Gravitational Wave Universe Taiji Laboratory,Hangzhou Institute for Advanced Study, UCAS, 5. Key Laboratory of Gravitational Wave Precision Measurement of Zhejiang Province, UCAS针对空间引力波探测任务对微推力测量需求,开发出一套基于闭环控制的单丝扭摆微牛级推力测量系统。 基于扭摆式 微推力测量原理,给出了微推力测量装置详细设计方案,重点分析了扭丝结构、角位移测量、电磁标定力以及闭环控制系统,通 过实验测量对该微推力测量装置进行标定,最后开展误差分析。 测试结果表明,开环状态下扭丝刚度约为 0. 003 25 N·m/ rad, 与理论值误差约 4. 0%;闭环状态下推力测量范围 0. 1~ 246. 0 μN,最小分辨率优于 0. 1 μN,相对不确定误差为 1. 174%,满足对 微推力器推力测量范围、分辨率和精度的测量要求。
In response to the micro-newton thrust measurement requirements for space gravitational wave detection missions, a singlewire torsion micro-newton thrust measurement system based on closed-loop control has been developed. Based on the principle of torsional pendulum micro-newton thrust measurement, the detailed design scheme of the micro-newton thrust measurement device is given, and the twisted wire structure, angular displacement measurement, electromagnetic calibration force, and closed-loop control system are mainly analyzed. The micro-newton thrust measuring device is calibrated through experimental measurement, and finally the error analysis is carried out. The test results show that the torsion wire stiffness is about 0. 003 25 N·m/ rad in the open-loop state, and the error with the theoretical value is about 4. 0%; the thrust measurement range in the closed-loop state is 0. 1 ~ 246. 0 μN, and the minimum resolution is better than 0. 1 μN, which is relatively uncertainty error is 1. 174%, which meets the measurement requirements for the thrust measurement range, resolution and accuracy of micro thrusters.
王嘉彬,龙建飞,徐禄祥,吴铭钐,郭 宁,杨 威.闭环控制下单丝扭摆微牛级推力测量系统[J].电子测量与仪器学报,2023,37(9):93-101
复制
