半球谐振陀螺高真空维持技术  

High Vacuum Maintaining Technology for Hemispherical Resonator Gyro

作　　者：张红波[1] 曲天良 王鹏[1] ZHANG Hong-bo;QU Tian-liang;WANG Peng(Huazhong Institute of Electro-Optics-Wuhan National Laboratory for Optoelectronics,Wuhan 430223,China)

机构地区：[1]华中光电技术研究所-武汉光电国家研究中心,湖北武汉430223

出　　处：《真空》2023年第4期75-79,共5页Vacuum

摘　　要：通过理论计算得到半球谐振陀螺壳体内部所需要的真空度,根据放气率实验测试数据得到壳体内部真空度随时间的变化关系,据此进行了吸气剂选型和吸气能力测试,并测量了放置吸气剂后的壳体等效放气率,测试结果表明所选用的吸气剂可以满足维持半球谐振陀螺内部高真空的使用需求。The required vacuum of hemispherical resonator gyro inner cavity was confirmed by theoretic calculation,and the relation of vacuum of the inner cavity with increasing time was found according to the outgassing rate experimental test data.The appropriate getter was chosen,the absorbable capacity of getter was tested,and the equivalent outgassing rate of inner cavity with getter was measured.The test results indicate that the getter can meet the requirement of keeping high vacuum of hemispherical resonator gyro.

关 键 词：半球谐振陀螺 空气阻尼 高真空 出气速率 吸气剂 

分 类 号：TN248.1[电子电信—物理电子学]