In this paper,a double rotating velocity measurement method based on the Fabry Perot(F P) interference is proposed. The all fiber dual channel structure is used in the experiment to measure the rotating velocity of two motors simultaneously. After analyzing two independent speckle signals using an autocorrelation algorithm,the corresponding rotating velocity of the movement motor is obtained. The experimental results reveal that two individual rotating velocity measurements can be achieved in a random range with a relative error under 0.23%. It demonstrates the high accuracy and simple operation of the novel all fiber configuration velocimeter,and the structure also realizes the simultaneous measurement of double motor rotating velocity.
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苏皓,刘冬冬,董太极,高彪.基于法布里-珀罗干涉的双电机转速测量[J].激光与红外,2021,51(12):1649~1653 SU Hao, LIU Dong-dong, DONG Tai-ji, GAO Biao. Double rotating velocity measurement based on the Fabry Perot interference[J]. LASER & INFRARED,2021,51(12):1649~1653