Method for adaptive control over optical fiber winding tension

Abstract

The invention discloses a method for adaptive control over optical fiber winding tension so as to improve a tracking angle velocity of a fiber supply shaft and control precision of optical fiber tension in the optical fiber winding process. A tension control system dynamic self-adapting model based on dynamic compensation on a winding radius is established; first a motion track of a fiber collecting shaft is planned according to an S-shaped acceleration and deceleration curve of five stages; an angle velocity track of the fiber supply shaft is dynamically planned according to the established tension dynamic self-adapting model, and the planned fiber supply shaft angle velocity is compensated according to tension deviation signals fed back by a tension sensor; and finally a track subdivision technology is adopted to achieve smooth transition of an angle velocity track in the acceleration and deceleration process of the fiber supply shaft. According to the method, the tension control precision is high, the overshoot and tension wave range are small, and the method is easy to implement and suitable for optical fiber winding machines and winding devices of various types and has high application values.

Description

technical field [0001] The invention relates to an adaptive control method for optical fiber winding tension, belonging to the technical field of optical fiber gyro. Background technique [0002] The fiber optic gyroscope is mainly used to measure the spatial motion attitude of the sensitive carrier, which plays a key role in the performance of the navigation system; the fiber optic ring is the core component of the fiber optic gyroscope, the winding method of the fiber The tension on the fiber is the main factor affecting the performance of the fiber optic gyroscope; keeping the tension on the fiber constant during the winding process of the fiber ring is one of the key technologies in the fiber winding process. [0003] Due to the special quadrupole winding process of optical fiber, and the high requirements for tension control accuracy and winding speed, during the optical fiber winding process, the fiber receiving shaft and the fiber feeding shaft will start and stop fre...

AI Technical Summary

Problems solved by technology

[0003] Due to the special quadrupole winding process of optical fiber, and the high requirements for tension control accuracy and winding speed, during the optical fiber winding process, the fiber receiving shaft and the fiber feeding shaft will start and stop frequently. If the motor starts and Improper stop control will cause start-up jitter and stop overshoot, which will not only affect the control accuracy of tension, but also cause the fiber to fall off or break the fiber in severe cases.

At present, the tension PID control method commonly used in the industry can no longer meet the requirements of high-precision winding of the fiber receiving shaft and fast follow-up of the fiber feeding shaft during the start-stop process of optical fiber winding.

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