Tri-axial digital closed ring optical fiber peg-top time-sharing modulation method
A fiber optic gyroscope, digital closed-loop technology, applied in Sagnac effect gyroscope, gyro effect for speed measurement, measurement device and other directions, to achieve the effect of reducing volume, reducing winding difficulty, and avoiding crosstalk
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[0011] The present invention will be further described in detail below in conjunction with the accompanying drawings.
[0012] In the publication number CN 1657876A, the disclosed three-axis integrated fiber optic gyroscope is different from the present invention in that it adopts a light source, a detector, a coupler, a gating switch and a modulation timing control unit added in the processor to pair the three The three-axis digital closed-loop fiber optic gyroscope performs time-sharing modulation, realizing a set of signal processing circuits shared by three axes, effectively improving the volume and weight of the three-axis integrated fiber optic gyroscope, and making the fiber optic gyroscope develop towards miniaturization.
[0013] Please refer to Fig. 1, the three-axis digital closed-loop fiber optic gyroscope of the present invention includes a light source, a detector, a coupler, a signal processing circuit, a gate switch, an X-axis phase modulator, an X-axis fiber op...
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