Development of high grade fiber-optic gyroscopes

descriptionPublicationkeyboard_double_arrow_right Article 01 Jan 1997 English Publisher:Springer Science and Business Media LLCJournal:Optical Review, volume 4, pages A148-A149 (issn: 1340-6000, eissn: 1349-9432,

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Authors: Kanshi Yamamoto; Yoshiyuki Okada;

doi: 10.1007/bf02936014

Development of high grade fiber-optic gyroscopes

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Abstract

Tokimec has been developing high grade interferometric fiber-optic gyroscopes (I-FOGs) for useful applications. The I-FOG consists of a sensing coil module, a light emitting module and an electronics circuits module. We achieved the bias stability of 0.003 deg/h and the angular random walk of 0.001 deg/√h and the scale factor error of 10 ppm (1σ). Then the azimuth error of the strapdown gyrocompass system with the high grade I-FOGs was less than ±0.05 s λ (deg) under the environmental temperature condition 23±5(°C).

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