| Issue |
MATEC Web Conf.
Volume 175, 2018
2018 International Forum on Construction, Aviation and Environmental Engineering-Internet of Things (IFCAE-IOT 2018)
|
|
|---|---|---|
| Article Number | 03042 | |
| Number of page(s) | 5 | |
| Section | Computer Simulation and Design | |
| DOI | https://doi.org/10.1051/matecconf/201817503042 | |
| Published online | 02 July 2018 | |
A temperature compensation method of measuring frequency for cylindrical vibratory gyroscope in frequency split trimming
1
The State Key Laboratory of High Performance and Complex Manufacturing, Central South University, Changsha, 410083, China
2
College of Mechanical and Electrical Engineering, Central South University, Changsha, 410083, China
* Corresponding author: huyw@csu.edu.cn
In the process of frequency split trimming, the fluctuation of environmental temperature causes a deviation in measuring the natural frequency, which is bigger than the request trimming accuracy. Therefore, a measuring method with temperature compensation is proposed to reduce this impact. Firstly, the relationship between natural frequency of resonator and environmental temperature are studied by experiments. Furthermore, the corresponding model of temperature compensation is proposed, which is written into the measuring unit to calculate the compensated frequency. The frequencies before and after temperature compensation are measured to prove the correctness of this method. At last, a real time measuring experiment is accomplished to verify the feasibility in frequency split trimming. Results show that the effect of temperature on the natural frequency reduced significantly with the temperature compensation measuring method. The proposed method is applicable for other types of vibratory gyroscope in precision frequency measurement.
© The Authors, published by EDP Sciences 2018
This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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