{"title":"A High-Performance Rate-Integrating Hemispherical Resonant Gyros with 0.00753°/h Bias Instability","authors":"Yongmeng Zhang, Sheng Yu, Kechen Guo, Jiangkun Sun, Xuezhong Wu, D. Xiao","doi":"10.1109/INERTIAL51137.2021.9430490","DOIUrl":null,"url":null,"abstract":"This paper reports a high performance rate-integrating Hemispherical Resonant Gyroscope (HRG). After the compensation on the anisostiffness, anisodamping and detection and actuation gain errors, the frequency mismatch and angle-dependent bias drift (ADB) of HRG reduce about 85% from 2mHz to 0.3mHz and 78% from 0.01°/s to 0.0022°/s, respectively. Finally, HRG shows excellent bias instability of 0.00753°/h, high input range of over ±2600°/s with small nonlinearity of 17ppm and a threshold value of less than ±0.001°/s.","PeriodicalId":424028,"journal":{"name":"2021 IEEE International Symposium on Inertial Sensors and Systems (INERTIAL)","volume":"54 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2021-03-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"3","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"2021 IEEE International Symposium on Inertial Sensors and Systems (INERTIAL)","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/INERTIAL51137.2021.9430490","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 3
Abstract
This paper reports a high performance rate-integrating Hemispherical Resonant Gyroscope (HRG). After the compensation on the anisostiffness, anisodamping and detection and actuation gain errors, the frequency mismatch and angle-dependent bias drift (ADB) of HRG reduce about 85% from 2mHz to 0.3mHz and 78% from 0.01°/s to 0.0022°/s, respectively. Finally, HRG shows excellent bias instability of 0.00753°/h, high input range of over ±2600°/s with small nonlinearity of 17ppm and a threshold value of less than ±0.001°/s.
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