Research on fiber-optic gyroscope signal detection with lock-in amplifier

2010 ◽  
Author(s):  
Xia Zhang ◽  
Tianze Li ◽  
Xiaojie Song ◽  
Chuan Jiang ◽  
Luan Hou
Keyword(s):  
Signal Detection ◽  
Fiber Optic ◽  
Fiber Optic Gyroscope ◽  
Lock In

Research on signal detection of re-entrant fiber optic gyroscope

2005 ◽  
Author(s):  
Xianhui Mao ◽  
Qian Tian ◽  
Liqun Sun ◽  
Yanshen Zhang ◽  
Xiaoming Wu ◽  
...  
Keyword(s):  
Signal Detection ◽  
Fiber Optic ◽  
Fiber Optic Gyroscope

scholarly journals Research on the Frequency-Dependent Halfwave Voltage of a Multifunction Integrated Optical Chip in an Interferometric Fiber Optic Gyroscope

Sensors ◽  
2019 ◽  
Vol 19 (13) ◽  
pp. 2851 ◽  
Author(s):  
Ran Bi ◽  
Lijun Miao ◽  
Tengchao Huang ◽  
Guangyao Ying ◽  
Shuangliang Che ◽  
...  
Keyword(s):  
Light Intensity ◽  
Frequency Dependence ◽  
High Precision ◽  
Measurement Method ◽  
Fiber Optic ◽  
Research Direction ◽  
Fiber Optic Gyroscope ◽  
Sinusoidal Modulation ◽  
Integrated Optical ◽  
Lock In

The multifunction integrated optical chip (MIOC) is one of the most critical parts of the interferometric fiber optic gyroscope (IFOG), and research on the halfwave voltage of the MIOC is meaningful for a high-precision IFOG. In this paper, the correlation between the frequency and halfwave voltage, which affects the interference light intensity of IFOG, is presented theoretically. A widespread measurement method for frequency dependence of the halfwave voltage, based on lock-in amplification and sinusoidal modulation, is proposed. Further, the measurement result and the oscillation of interference light intensity in the Sagnac interferometer are presented, which are in great agreement with the theory. This paper proposes the frequency dependence of the halfwave voltage and provides a new error research direction for the improvement of the MIOC in a high-precision IFOG.

scholarly journals Multiple Optical Compensation in Interferometric Fiber-Optic Gyroscope for Polarization Nonreciprocal Error Suppression

2014 ◽  
Vol 6 (5) ◽  
pp. 1-8
Author(s):  
Ping Lu ◽  
Zinan Wang ◽  
Yi Yang ◽  
Duyu Zhao ◽  
Siyadong Xiong ◽  
...  
Keyword(s):  
Fiber Optic ◽  
Fiber Optic Gyroscope ◽  
Error Suppression

scholarly journals Modified Dynamic North-Finding Scheme With a Fiber Optic Gyroscope

2018 ◽  
Vol 10 (2) ◽  
pp. 1-10 ◽  
Author(s):  
Zhu Zhou ◽  
Zhongwei Tan ◽  
Xinyue Wang ◽  
Ziyu Wang
Keyword(s):  
Fiber Optic ◽  
Fiber Optic Gyroscope
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