A1 - Du, Shisen
A1 - Wang, Xueqin
A1 - Lin, Song
A1 - Zhang, Chunxi
A2 - Gaj, Miron. Redakcja
A2 - Urbańczyk, Wacław. Redakcja
PB - Oficyna Wydawnicza Politechniki Wrocławskiej
N2 - Gamma-radiation induced random walk error (RWE) of interferometer fiber optic gyroscope (IFOG) is presented in this paper. Testing was performed at the components and system level with an expanded version of a closed-loop operational fiber optic gyroscope. Primary concerns include attenuation to total dose, angle random walk, and bias stability degradation as a function of dose. Closed-loop transient noise results are evaluated based on radiation test of the 400 m fiber coil. Based on the test result, a random walk coefficient (RWC) prediction model in radiation environment, which is obtained by embedding polarization-maintaining (PM) fiber loss expression into the RWC model, was built following a power law of dose. An IFOG RWC in space radiation environment was predicted from radiation dose rate by the prediction model. The RWC of the IFOG is limited by the detector thermal noise above 1 kGy radiation and the RWC prediction model is verified by radiation experiment.
L1 - http://dbc.wroc.pl/Content/58215/optappl_4104p953.pdf
L2 - http://dbc.wroc.pl/Content/58215
KW - optyka
KW - fiber optic gyroscope
KW - gamma radiation
KW - noise
KW - random walk coefficient
ER -
T1 - Gamma-radiation induced degradation random walk error in interferometer fiber optic gyroscope
UR - http://dbc.wroc.pl/dlibra/docmetadata?id=58215