Research on angular vibration measurement system based on heterodyne interference

Zhao-shan Ouyang; Xian-fan Wang; Teng-chao Huang

doi:10.1117/12.2591142

28 February 2021 Research on angular vibration measurement system based on heterodyne interference

Zhao-shan Ouyang, Xian-fan Wang, Teng-chao Huang

Proceedings Volume 11781, 4th Optics Young Scientist Summit (OYSS 2020); 117811Y (2021) https://doi.org/10.1117/12.2591142
Event: Optics Frontier: Optics Young Scientist Summit, 2020, Ningbo, China

Abstract

In order to accurately evaluate the dynamic performance of inertial devices, this paper proposed an angular vibration test system and method for inertial devices based on heterodyne interference technology. This system is mainly composed of the angular vibration excitation device and the angular vibration measurement device. By installing an angular reflector on the swing table, the dual-frequency laser interferometer (DFLI) can measure the real-time angle value of the swing table, then obtain its amplitude-frequency characteristics with the Fast Fourier Transform algorithm . The experimental results show that the test system can measure angular vibrations exceeding 1000 Hz. Furthermore, the frequency bandwidth of an interferometric fiber optic gyroscope (IFOG) fabricated in our laboratory is evaluated by the angular vibration test system aforementioned, and its cut-off frequency is measured as 375 Hz. Finally, a comprehensive theoretical analysis has been implemented to investigate the uncertainty factors in the DFLI of this system.

Citation Download Citation

Zhao-shan Ouyang, Xian-fan Wang, and Teng-chao Huang "Research on angular vibration measurement system based on heterodyne interference", Proc. SPIE 11781, 4th Optics Young Scientist Summit (OYSS 2020), 117811Y (28 February 2021); https://doi.org/10.1117/12.2591142

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available