CLC number: TP212.1
On-line Access: 2024-08-27
Received: 2023-10-17
Revision Accepted: 2024-05-08
Crosschecked: 2017-04-27
Cited: 0
Clicked: 7544
Hai Li, Xiao-wei Liu, Rui Weng, Hai-feng Zhang. Micro-angle tilt detection for the rotor of a novel rotational gyroscope with a 0.47′′ resolution[J]. Frontiers of Information Technology & Electronic Engineering, 2017, 18(5): 591-598.
@article{title="Micro-angle tilt detection for the rotor of a novel rotational gyroscope with a 0.47′′ resolution",
author="Hai Li, Xiao-wei Liu, Rui Weng, Hai-feng Zhang",
journal="Frontiers of Information Technology & Electronic Engineering",
volume="18",
number="5",
pages="591-598",
year="2017",
publisher="Zhejiang University Press & Springer",
doi="10.1631/FITEE.1500454"
}
%0 Journal Article
%T Micro-angle tilt detection for the rotor of a novel rotational gyroscope with a 0.47′′ resolution
%A Hai Li
%A Xiao-wei Liu
%A Rui Weng
%A Hai-feng Zhang
%J Frontiers of Information Technology & Electronic Engineering
%V 18
%N 5
%P 591-598
%@ 2095-9184
%D 2017
%I Zhejiang University Press & Springer
%DOI 10.1631/FITEE.1500454
TY - JOUR
T1 - Micro-angle tilt detection for the rotor of a novel rotational gyroscope with a 0.47′′ resolution
A1 - Hai Li
A1 - Xiao-wei Liu
A1 - Rui Weng
A1 - Hai-feng Zhang
J0 - Frontiers of Information Technology & Electronic Engineering
VL - 18
IS - 5
SP - 591
EP - 598
%@ 2095-9184
Y1 - 2017
PB - Zhejiang University Press & Springer
ER -
DOI - 10.1631/FITEE.1500454
Abstract: Differential capacitive detection has been widely used in the displacement measurement of the proof mass of vibratory gyroscopes, but it did not achieve high resolutions in angle detection of rotational gyroscopes due to restrictions in structure, theory, and interface circuitry. In this paper, a differential capacitive detection structure is presented to measure the tilt angle of the rotor of a novel rotational gyroscope. A mathematical model is built to study how the structure’s capacitance changes with the rotor tilt angles. The relationship between differential capacitance and structural parameters is analyzed, and preliminarily optimized size parameters are adopted. A low-noise readout interface circuit is designed to convert differential capacitance changes to voltage signals. Rate table test results of the gyroscope show that the smallest resolvable tilt angle of the rotor is less than 0.47′′ (0.00013°), and the nonlinearity of the angle detection structure is 0.33%, which can be further improved. The results indicate that the proposed detection structure and the circuitry are helpful for a high accuracy of the gyroscope.
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