A Complementary Filter-Based All-Parameters Estimation for Triaxis Gyroscopes and Optical Angular Encoders With Intrinsic Eccentricity

Zhao, Xuxing; Ran, Feng; Yue, Wu; Yu, Ning; Meng, Xiaofeng

doi:10.1109/jsen.2020.3034325

Cited by 7 publications

(2 citation statements)

References 34 publications

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“…Based on the relationship between A(1) and the eccentricity error expressed in Equation (16), and referring to the value of the grating pitch in Table 1, the eccentricity error can be calculated; the result is 97.02 µm.…”

Section: Experiments Of the Eccentricity Error Separation With Propos...mentioning

confidence: 99%

“…Another kind of method was realized with various sensors to achieve eccentricity error separation in the rotary table [15][16][17]. Ai Cheng-guang et al [18] proposed an eccentricity error separation model based on non-diametric dual reading heads, compared the phase difference of the moiré signals received by the dual reading heads, separated the eccentricity error and the eccentricity error direction of the circular grating in the platform by synthesizing the Lissajous graph of the signals, corrected the testing system based on the derived compensation formula, and increased the circular angle accuracy by nearly five times.…”

Section: Introductionmentioning

confidence: 99%

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An Eccentricity Error Separation Method for Rotary Table Based on Phase Feature of Moiré Signal of Single Reading Head

Huang,

Che,

Zhu

et al. 2023

Photonics

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In view of the limitations of the existing eccentricity error separation method of the rotary table, an eccentricity error separation method based on the phase feature of the moiré signal of a single reading head is proposed herein. A grating pair transmission model is established based on the analysis of the principle of the rotary table; thereby, the influence of eccentricity error on the phase feature of the moiré signal in the rotation course of the rotary table is clarified, and the corresponding model between the phase feature spectral components and the eccentricity error is established. The verification experiments of the proposed method are carried out based on the laboratory-made circuit system. After verifying the accuracy of the data acquisition of the laboratory-made circuit board, the verification experiments of the eccentricity error separation effect of the proposed method are carried out. The experimental data are compared with those of the traditional method, and the results show that the error between the two methods is 2.34 μm, while the relative error is 2.3%.

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Section: Experiments Of the Eccentricity Error Separation With Propos...mentioning

confidence: 99%