Analysis of signal-obtaining error factor of sensor in gyro

Abstract

The digital signal-obtaining for gyroscope is given. The single optic-fiber sensor via modulating intensity of light is used as measuring component. The influence on static transmission properties resulting from the special working environment (e.g. cryogenic and vacuum), the measure error because of the reflector shape of rotor, the abnormity of facula from sensor caused by the existence of engraving error, and the fixing error of sensor and the error of machine tool’s initial lignment are investigated. The mathematic model in every condition is founded, the simulation and relative experiments are done and the outcome is analyzed. The mathematic model and method of compensating technology are studied and some relative experiments are made. The result of study is useful to improvement of the signal-obtaining system.

Keywords

fiber-optic sensor / signal-obtaining for gyro / cryogenic and vacuum / measure error

References

[1] Liu jianfeng, Yuan Gannan, Zhao Lie, Zhao Shijun. The research on signal-obtaining pattern for a new type of gyroscope[J]. Journal of Marine Science and Application, 2003, 2(2): 46-52

[2] DEBRA D B Parkinson B W. Engineering technology for physics in space [A]. Adervances in Space Research [C]. Stanford, USA:1989.

[3] Zhang Y, Gao F, Wu X, et al. Investigation of the reentrant integrated optical rotation sensor[A]. Sysposium Gyro Technology [C]. 2000, Stuttgart: University of Stuttgart

[4] Richard L G. INITIAL navigation technology from 1970–1995 [J]. The Institute of Navigation, 1995, 42(1): 165-185

[5] LIANG D F, MCMILLAN J C, VINNINS M F. Low cost integrated machine navigation system [A]. Proceedings 39rd ION[C]. [s.l.], 1983.

[6] ZHANG Rui, JIN Zhihua, TIAN Weifeng. A signal-obtaining system of ESG[J]. Shipping Engineering, 2001(4):42–44.

[7] Pondrom W L. Inertial technology for the future[J]. V-Electrostatically Suspended Gyroscope, 1984, 20(4): 14-16