A Method for Improving Light Intensity Stability of a Total Reflection Prism Laser Gyro Based on Series Correction and Feedforward Compensation
The instability of scale factor and null shift are closely related to the change of the light intensity of a total reflection prism laser gyro (TRPLG). To improve the light intensity stability, the light intensity stabilization principle of TRPLG was analyzed, and a mathematical model of light inten...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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IEEE
2020-01-01
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| Series: | IEEE Access |
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| Online Access: | https://ieeexplore.ieee.org/document/8957561/ |
| _version_ | 1818616749298286592 |
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| author | Yuanbo Tao Sihai Li Qiangwen Fu Jiangtao Zheng Shiming Liu Yanhua Yuan |
| author_facet | Yuanbo Tao Sihai Li Qiangwen Fu Jiangtao Zheng Shiming Liu Yanhua Yuan |
| author_sort | Yuanbo Tao |
| collection | DOAJ |
| description | The instability of scale factor and null shift are closely related to the change of the light intensity of a total reflection prism laser gyro (TRPLG). To improve the light intensity stability, the light intensity stabilization principle of TRPLG was analyzed, and a mathematical model of light intensity stabilization system was established. Aiming at the problem that original system has a long adjustment time, a series correction method of adding a proportional integral differential (PID) link in the forward channel was adopted. According to the third-order optimal design, the original I-type third-order overdamped system was optimized to the new II-type third-order underdamped system, which ultimately improved the system's dynamic and steady-state performance. Feedforward compensation was used to introduce the light intensity disturbance during the longitudinal mode hopping into the closed-loop system, which realized the full compensation of the light intensity error and improved the light intensity characteristics during the longitudinal mode hopping. Combined with the above two methods, experimental results showed that the new system with feedforward compensation improved the light intensity stability by 32% at constant temperature and by 40% at variable temperature, with the TRPLG's bias stability improved by more than 16% at constant temperature and by 22% at variable temperature. |
| first_indexed | 2024-12-16T16:54:45Z |
| format | Article |
| id | doaj.art-dd49b0018ceb49769709d6f881467812 |
| institution | Directory Open Access Journal |
| issn | 2169-3536 |
| language | English |
| last_indexed | 2024-12-16T16:54:45Z |
| publishDate | 2020-01-01 |
| publisher | IEEE |
| record_format | Article |
| series | IEEE Access |
| spelling | doaj.art-dd49b0018ceb49769709d6f8814678122022-12-21T22:23:55ZengIEEEIEEE Access2169-35362020-01-018136511366010.1109/ACCESS.2020.29663028957561A Method for Improving Light Intensity Stability of a Total Reflection Prism Laser Gyro Based on Series Correction and Feedforward CompensationYuanbo Tao0https://orcid.org/0000-0003-1493-1597Sihai Li1https://orcid.org/0000-0001-7815-9941Qiangwen Fu2https://orcid.org/0000-0001-6895-7923Jiangtao Zheng3https://orcid.org/0000-0003-2437-689XShiming Liu4https://orcid.org/0000-0001-5484-0484Yanhua Yuan5https://orcid.org/0000-0003-4820-3758School of Automation, Xi’an University of Posts and Telecommunications, Xi’an, ChinaSchool of Automation, Northwestern Polytechnical University, Xi’an, ChinaSchool of Automation, Northwestern Polytechnical University, Xi’an, ChinaSchool of Automation, Northwestern Polytechnical University, Xi’an, ChinaSchool of Automation, Northwestern Polytechnical University, Xi’an, ChinaBeijing Institute of Control and Electronic Technology, Beijing, ChinaThe instability of scale factor and null shift are closely related to the change of the light intensity of a total reflection prism laser gyro (TRPLG). To improve the light intensity stability, the light intensity stabilization principle of TRPLG was analyzed, and a mathematical model of light intensity stabilization system was established. Aiming at the problem that original system has a long adjustment time, a series correction method of adding a proportional integral differential (PID) link in the forward channel was adopted. According to the third-order optimal design, the original I-type third-order overdamped system was optimized to the new II-type third-order underdamped system, which ultimately improved the system's dynamic and steady-state performance. Feedforward compensation was used to introduce the light intensity disturbance during the longitudinal mode hopping into the closed-loop system, which realized the full compensation of the light intensity error and improved the light intensity characteristics during the longitudinal mode hopping. Combined with the above two methods, experimental results showed that the new system with feedforward compensation improved the light intensity stability by 32% at constant temperature and by 40% at variable temperature, with the TRPLG's bias stability improved by more than 16% at constant temperature and by 22% at variable temperature.https://ieeexplore.ieee.org/document/8957561/Total reflection prism laser gyrolight intensity stabilityseries correctionfeedforward compensationdynamic and steady-state performancebias stability |
| spellingShingle | Yuanbo Tao Sihai Li Qiangwen Fu Jiangtao Zheng Shiming Liu Yanhua Yuan A Method for Improving Light Intensity Stability of a Total Reflection Prism Laser Gyro Based on Series Correction and Feedforward Compensation IEEE Access Total reflection prism laser gyro light intensity stability series correction feedforward compensation dynamic and steady-state performance bias stability |
| title | A Method for Improving Light Intensity Stability of a Total Reflection Prism Laser Gyro Based on Series Correction and Feedforward Compensation |
| title_full | A Method for Improving Light Intensity Stability of a Total Reflection Prism Laser Gyro Based on Series Correction and Feedforward Compensation |
| title_fullStr | A Method for Improving Light Intensity Stability of a Total Reflection Prism Laser Gyro Based on Series Correction and Feedforward Compensation |
| title_full_unstemmed | A Method for Improving Light Intensity Stability of a Total Reflection Prism Laser Gyro Based on Series Correction and Feedforward Compensation |
| title_short | A Method for Improving Light Intensity Stability of a Total Reflection Prism Laser Gyro Based on Series Correction and Feedforward Compensation |
| title_sort | method for improving light intensity stability of a total reflection prism laser gyro based on series correction and feedforward compensation |
| topic | Total reflection prism laser gyro light intensity stability series correction feedforward compensation dynamic and steady-state performance bias stability |
| url | https://ieeexplore.ieee.org/document/8957561/ |
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