石英挠性加速度计磁路参数研究  

Study on Magnetic Circuit Parameters of Quartz Flexible Accelerometer

作　　者：杨峰[1,2,3] 王勇 彭志高[1,2,3] YANG Feng;WANG Yong;PENG Zhigao(The 26th Institute of China Electronics Technology Group Corporation,Chongqing 400060,China;Solid Inertial Technology Enterprise Engineering Technology Research Center of Chongqing City,Chongqing 401332,China;Solid Inertial Technology Engineering Laboratory of Chongqing City,Chongqing 401332,China)

机构地区：[1]中国电子科技集团公司第二十六研究所,重庆400060 [2]重庆市固态惯性技术企业工程技术研究中心,重庆401332 [3]重庆市固态惯性技术工程实验室,重庆401332

出　　处：《压电与声光》2020年第1期123-126,共4页Piezoelectrics & Acoustooptics

摘　　要：从永磁体的长径比、气隙磁场均匀性等参数出发,采用理论计算和仿真分析,对采用钐钴永磁体(Sm 2 Co 17)的石英挠性加速度计磁路进行了设计。在降低永磁体和磁帽高度比的基础上,对两种高度比的磁路气隙磁场均匀性进行了测量,并对优化前后的石英挠性加速度计的标度因数进行了1个月的重复性测试。测试结果表明,优化后的力矩器磁路既能获得较均匀的气隙磁场,也能保持较好的长期性能。Based on the parameters such as the aspect ratio of the permanent magnet and the uniformity of the air gap magnetic field,the magnetic circuit of the quartz flexible accelerometer with Samarium-Cobalt permanent magnet(Sm 2Co 17)was designed using theoretical calculations and simulation analysis.The height ratio of the permanent magnet to the magnetic cap was adjusted,and the air-gap magnetic field of the two height ratios is measured.The one-month repeatability test was performed on the scale factor of the quartz flexible accelerometer with two different magnetic circuits.The results show that the optimized magnetic circuit can obtain the uniform air-gap magnetic field and maintain good long-term performance.

关 键 词：钐钴永磁体 磁路参数 高度比 长期重复性 假设检验 

分 类 号：TN966[电子电信—信号与信息处理] TM2[电子电信—信息与通信工程]