{"title":"A 0.017 ∘/h Rate-Integrating Micro-Shell Resonator Gyroscope Using Virtual Rotation Modulation","authors":"Sheng Yu;Jiangkun Sun;Yongmeng Zhang;Kun Lu;Yan Shi;Xuezhong Wu;Dingbang Xiao","doi":"10.1109/JMEMS.2024.3474054","DOIUrl":null,"url":null,"abstract":"In this letter, a high-performance micro-shell resonator gyroscope (MSRG) working on rate-integrating mode with virtual rotation modulation (VRM) is presented for the first time. To suppress the angle-dependent bias and improve the long-term accuracy of MSRG, its vibrating pattern is virtually set to rotate forward and backward periodically, which is called virtual rotation modulation. Combined with the self-calibration for the virtual rotating rate and the aniso-damping, the RMS error of the device output under VRM is reduced. The experimental results show the MSRG with VRM can achieve a long-term bias instability (BI) of \n<inline-formula> <tex-math>$0.017~^{\\circ }$ </tex-math></inline-formula>\n/h, a wide measurement range of \n<inline-formula> <tex-math>$\\pm 1200~^{\\circ }$ </tex-math></inline-formula>\n/s with the scale factor nonlinearity of 0.77 ppm, a bandwidth of 200 Hz and a resolution and threshold of \n<inline-formula> <tex-math>$\\lt 0.004~^{\\circ }$ </tex-math></inline-formula>\n/s. [2024-0106]","PeriodicalId":16621,"journal":{"name":"Journal of Microelectromechanical Systems","volume":"33 6","pages":"657-659"},"PeriodicalIF":2.5000,"publicationDate":"2024-10-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Microelectromechanical Systems","FirstCategoryId":"5","ListUrlMain":"https://ieeexplore.ieee.org/document/10720555/","RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"ENGINEERING, ELECTRICAL & ELECTRONIC","Score":null,"Total":0}
引用次数: 0
Abstract
In this letter, a high-performance micro-shell resonator gyroscope (MSRG) working on rate-integrating mode with virtual rotation modulation (VRM) is presented for the first time. To suppress the angle-dependent bias and improve the long-term accuracy of MSRG, its vibrating pattern is virtually set to rotate forward and backward periodically, which is called virtual rotation modulation. Combined with the self-calibration for the virtual rotating rate and the aniso-damping, the RMS error of the device output under VRM is reduced. The experimental results show the MSRG with VRM can achieve a long-term bias instability (BI) of
$0.017~^{\circ }$
/h, a wide measurement range of
$\pm 1200~^{\circ }$
/s with the scale factor nonlinearity of 0.77 ppm, a bandwidth of 200 Hz and a resolution and threshold of
$\lt 0.004~^{\circ }$
/s. [2024-0106]
期刊介绍:
The topics of interest include, but are not limited to: devices ranging in size from microns to millimeters, IC-compatible fabrication techniques, other fabrication techniques, measurement of micro phenomena, theoretical results, new materials and designs, micro actuators, micro robots, micro batteries, bearings, wear, reliability, electrical interconnections, micro telemanipulation, and standards appropriate to MEMS. Application examples and application oriented devices in fluidics, optics, bio-medical engineering, etc., are also of central interest.