Title :
Phase domain model of a second order fiber-optic gyroscope dynamic system
Author :
Lin, Jen-Dau ; Kuo, Kung-Hung ; Yeh, Chun-Shin
Author_Institution :
Inst. of Ind. Educ., Nat. Chunghua Univ. of Educ., Taiwan
Abstract :
In this paper, we have developed a phase-domain model to analyze a nonlinear fiber-optic gyroscope (FOG) system theoretically, and use it to obtain an optimal-designed system. System´s design including details of signal processing is described here and used to improve system´s sensitivity and precision. From computer´s simulation and experimental results, we know that 1. The experimental results coincide with the analytic results, with error less than 4% in the respects of rise time, overshooting, and steady state error; that is proved by the computer simulation for the time domain response of a step and a ramp input tests. 2. Using the phase-domain model, one can build up one´s optimal FOG system with zero steady state error, 6% overshooting, high stability, and short rise time about one of system´s natural frequency, i.e. 1/ωn
Keywords :
digital simulation; fibre optic sensors; gyroscopes; optimal control; Sagnac phase shift; computer simulation; nonlinear fiber-optic gyroscope; optimal-design; overshooting; phase domain model; phase ing compensation; phase-domain model; rotation velocity; second order fiber-optic gyroscope; signal processing; steady state error; time domain response; Computer errors; Computer simulation; Error analysis; Gyroscopes; Nonlinear dynamical systems; Signal processing; Stability; Steady-state; Testing; Time domain analysis;
Conference_Titel :
Instrumentation and Measurement Technology Conference, 1994. IMTC/94. Conference Proceedings. 10th Anniversary. Advanced Technologies in I & M., 1994 IEEE
Conference_Location :
Hamamatsu
Print_ISBN :
0-7803-1880-3
DOI :
10.1109/IMTC.1994.352035