{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,12,25]],"date-time":"2025-12-25T01:48:09Z","timestamp":1766627289480,"version":"build-2065373602"},"reference-count":29,"publisher":"MDPI AG","issue":"5","license":[{"start":{"date-parts":[[2016,4,28]],"date-time":"2016-04-28T00:00:00Z","timestamp":1461801600000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Sensors"],"abstract":"<jats:p>This paper reports a more complete description of the design process of the Center Support Quadruple Mass Gyroscope (CSQMG), a gyro expected to provide breakthrough performance for flat structures. The operation of the CSQMG is based on four lumped masses in a circumferential symmetric distribution, oscillating in anti-phase motion, and providing differential signal extraction. With its 4-fold symmetrical axes pattern, the CSQMG achieves a similar operation mode to Hemispherical Resonant Gyroscopes (HRGs). Compared to the conventional flat design, four Y-shaped coupling beams are used in this new pattern in order to adjust mode distribution and enhance the synchronization mechanism of operation modes. For the purpose of obtaining the optimal design of the CSQMG, a kind of applicative optimization flow is developed with a comprehensive derivation of the operation mode coordination, the pseudo mode inhibition, and the lumped mass twisting motion elimination. The experimental characterization of the CSQMG was performed at room temperature, and the center operation frequency is 6.8 kHz after tuning. Experiments show an Allan variance stability 0.12\u00b0\/h (@100 s) and a white noise level about 0.72\u00b0\/h\/\u221aHz, which means that the CSQMG possesses great potential to achieve navigation grade performance.<\/jats:p>","DOI":"10.3390\/s16050613","type":"journal-article","created":{"date-parts":[[2016,4,28]],"date-time":"2016-04-28T10:25:55Z","timestamp":1461839155000},"page":"613","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":29,"title":["Optimal Design of a Center Support Quadruple Mass Gyroscope (CSQMG)"],"prefix":"10.3390","volume":"16","author":[{"given":"Tian","family":"Zhang","sequence":"first","affiliation":[{"name":"Engineering Research Center for Navigation Technology, Department of Precision Instruments, Tsinghua University, Beijing 100084, China"}]},{"given":"Bin","family":"Zhou","sequence":"additional","affiliation":[{"name":"Engineering Research Center for Navigation Technology, Department of Precision Instruments, Tsinghua University, Beijing 100084, China"}]},{"given":"Peng","family":"Yin","sequence":"additional","affiliation":[{"name":"Engineering Research Center for Navigation Technology, Department of Precision Instruments, Tsinghua University, Beijing 100084, China"}]},{"given":"Zhiyong","family":"Chen","sequence":"additional","affiliation":[{"name":"Engineering Research Center for Navigation Technology, Department of Precision Instruments, Tsinghua University, Beijing 100084, China"}]},{"given":"Rong","family":"Zhang","sequence":"additional","affiliation":[{"name":"Engineering Research Center for Navigation Technology, Department of Precision Instruments, Tsinghua University, Beijing 100084, China"}]}],"member":"1968","published-online":{"date-parts":[[2016,4,28]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","unstructured":"Froyum, K., Goepfert, S., Henrickson, J., and Thorland, J. 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