Modeling and Analysis of Phase Fluctuation in a High-Precision Roll Angle Measurement Based on a Heterodyne Interferometer
Heterodyne interferometry is a high-precision method applied in roll angle measurements. Phase metering is essential for high precision. During a high-precision measurement, a phase fluctuation appears even when the roll angle does not vary, which has never been analyzed before. Herein, the reason f...
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MDPI AG
2016-08-01
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Online Access: | http://www.mdpi.com/1424-8220/16/8/1214 |
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author | Junhui Huang Zhao Wang Jianmin Gao Bao Yu |
author_facet | Junhui Huang Zhao Wang Jianmin Gao Bao Yu |
author_sort | Junhui Huang |
collection | DOAJ |
description | Heterodyne interferometry is a high-precision method applied in roll angle measurements. Phase metering is essential for high precision. During a high-precision measurement, a phase fluctuation appears even when the roll angle does not vary, which has never been analyzed before. Herein, the reason for the phase fluctuation is revealed, which results from the frequency-difference fluctuation and time difference between measurement and reference beams. A mathematical model of that phase-fluctuation mechanism is established, and that model provides a theoretical basis for analyzing and reducing the phase fluctuation. The impact that the main factors have on the phase metering is analyzed quantitatively, and experiments are carried out to validate the model. Finally, the phase fluctuation decreases to 0.02° by frequency reduction, which conversely verifies the theoretical model. |
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institution | Directory Open Access Journal |
issn | 1424-8220 |
language | English |
last_indexed | 2024-04-11T13:19:46Z |
publishDate | 2016-08-01 |
publisher | MDPI AG |
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spelling | doaj.art-ec108db3ab22480a88e407ad86fd39902022-12-22T04:22:17ZengMDPI AGSensors1424-82202016-08-01168121410.3390/s16081214s16081214Modeling and Analysis of Phase Fluctuation in a High-Precision Roll Angle Measurement Based on a Heterodyne InterferometerJunhui Huang0Zhao Wang1Jianmin Gao2Bao Yu3School of Mechanical Engineering, Xi’an Jiaotong University, Xi’an 710049, ChinaSchool of Mechanical Engineering, Xi’an Jiaotong University, Xi’an 710049, ChinaState Key Laboratory for Manufacturing Systems Engineering, Xi’an Jiaotong University, Xi’an 710049, ChinaSchool of Mechanical Engineering, Xi’an Jiaotong University, Xi’an 710049, ChinaHeterodyne interferometry is a high-precision method applied in roll angle measurements. Phase metering is essential for high precision. During a high-precision measurement, a phase fluctuation appears even when the roll angle does not vary, which has never been analyzed before. Herein, the reason for the phase fluctuation is revealed, which results from the frequency-difference fluctuation and time difference between measurement and reference beams. A mathematical model of that phase-fluctuation mechanism is established, and that model provides a theoretical basis for analyzing and reducing the phase fluctuation. The impact that the main factors have on the phase metering is analyzed quantitatively, and experiments are carried out to validate the model. Finally, the phase fluctuation decreases to 0.02° by frequency reduction, which conversely verifies the theoretical model.http://www.mdpi.com/1424-8220/16/8/1214roll angleheterodyne interferometerphase meteringphase fluctuationmodeling |
spellingShingle | Junhui Huang Zhao Wang Jianmin Gao Bao Yu Modeling and Analysis of Phase Fluctuation in a High-Precision Roll Angle Measurement Based on a Heterodyne Interferometer Sensors roll angle heterodyne interferometer phase metering phase fluctuation modeling |
title | Modeling and Analysis of Phase Fluctuation in a High-Precision Roll Angle Measurement Based on a Heterodyne Interferometer |
title_full | Modeling and Analysis of Phase Fluctuation in a High-Precision Roll Angle Measurement Based on a Heterodyne Interferometer |
title_fullStr | Modeling and Analysis of Phase Fluctuation in a High-Precision Roll Angle Measurement Based on a Heterodyne Interferometer |
title_full_unstemmed | Modeling and Analysis of Phase Fluctuation in a High-Precision Roll Angle Measurement Based on a Heterodyne Interferometer |
title_short | Modeling and Analysis of Phase Fluctuation in a High-Precision Roll Angle Measurement Based on a Heterodyne Interferometer |
title_sort | modeling and analysis of phase fluctuation in a high precision roll angle measurement based on a heterodyne interferometer |
topic | roll angle heterodyne interferometer phase metering phase fluctuation modeling |
url | http://www.mdpi.com/1424-8220/16/8/1214 |
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