Standing wave drift of hemispherical resonator with quality factor non-uniformity under a ring electrode excitation

Huo, Yan; Wang, Zeyu; Ren, Shenqiang; Wei, Zhennan; Yi, Guoxing; Wang, Changhong

doi:10.1016/j.cja.2021.05.012

Cited by 10 publications

(3 citation statements)

References 17 publications

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“…When the gyro has angle signal input, the sensing electrode SY (+), SY (−) picks up the Coriolis force signal, and the gyro rotational speed signal is obtained by processing. DY (+) and DY (−) electrodes are quadrature error correction electrodes and sensing closedloop electrodes [22].…”

Section: N = Three Wineglass Mode Metal Cylindrical Resonator Gyrosco...mentioning

confidence: 99%

“…Under the same processing technology, the frequency split of the N = 3 Wineglass Mode Metal Cylindrical Resonator Gyroscope (WMMCRG) is about 96% smaller than that of Cylindrical Vibrating Gyroscope (CVG), which are 0.02 Hz and 0.6 Hz, respectively [11][12][13][14][15][16][17][18][19][20][21][22].…”

Section: Introductionmentioning

confidence: 99%

“…SX (+) and SX (−) are used as driving feedback electrodes, and the signal is amplified and filtered into the preprocessing circuit.When the gyro has angle signal input, the sensing electrode SY (+), SY (−) picks up the Coriolis force signal, and the gyro rotational speed signal is obtained by processing. DY (+) and DY (−) electrodes are quadrature error correction electrodes and sensing closedloop electrodes[22].The first eight order modes of the structure are simulated and shown in Figure3, and the working modes are emphasized. The resonant structure of the metal shell designed in this paper is classified according to half n (the shell vibration displacement is zero) of the number of nodal lines.…”

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confidence: 99%

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Design and Experiment for N = 3 Wineglass Mode Metal Cylindrical Resonator Gyroscope Closed-Loop System

et al. 2022

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This paper studies a kind of gyro structure of N = 3 Wineglass Mode Metal Cylindrical Resonator Gyroscope (WMMCRG). Compared with traditional Cylindrical Vibrating Gyroscope (CVG), the designed structure has higher scale factor and lower frequency split. This paper provides a more specific processing method and the parameters of resonator materials. A closed-loop controlling system with low error and low noise is designed for WMMCRG. The system is composed of three independent closed-loop systems: drive closed-loop, sensing closed-loop, and quadrature error correction closed-loop. Through the test of the high-precision turntable, under the premise of the same material and processing technology, the bias instability, bias stability, zero bias, Angular Random Walk (ARW), and frequency split of WMMCRG is 1.974°/h, 10.869°/h, 10.3323°/s, 16 (°)/√h, 0.02 Hz, respectively.

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Section: N = Three Wineglass Mode Metal Cylindrical Resonator Gyrosco...mentioning

confidence: 99%