Optical fiber tension adjusting device

Abstract

The invention discloses an optical fiber tension adjusting device which comprises a base. A guide rail is arranged on the base, and a sliding block is assembled on the guide rail. A connecting rod isfixed to one end of the sliding block, and a fixed block is arranged above the sliding block. A guide wheel mechanism is fixed to the connecting rod, and an induction coil is fixed to the fixed block.A lead of the induction coil and a signal line in a grating ruler are guided out of the device through a cable. At least two sets of magnets are fixed to the base, and the magnets are parallel to theguide rail and distributed symmetric about the induction coil. Every two symmetrically distributed magnets form one group, the magnetic field direction of one group of magnets perpendicularly penetrates the induction coil, and the magnetic field direction of the other group of magnets perpendicularly penetrates the coil in the opposite direction. According to the optical fiber tension adjusting device, the tension of an optical fiber can be adjusted accurately, effectively and stably, and the tension can be changed online in real time.

Description

technical field [0001] The invention belongs to the technical field of optical fiber winding equipment, and in particular relates to an optical fiber tension adjusting device. Background technique [0002] Optical fiber, that is, optical fiber, is made of glass or plastic, and can be used as a medium for light transmission, and is widely used in the fields of communication and sensing. Fiber produced from draw towers is typically stored in rolls on plastic I-beams, ranging in length from a few meters to hundreds of kilometers. In actual use, the optical fibers of these storage disks will be divided into transfer disks of different dimensions according to different usage requirements. [0003] As long as the fiber splitting and rewinding process of the fiber optic disk is involved, the tension problem must be considered, because if the tension is too small, the fiber arrangement will be loose and affect the use; if the tension is too high, the optical performance of the fibe...

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Problems solved by technology

[0003] As long as the fiber splitting and rewinding process of the fiber optic disk is involved, the tension problem must be considered, because if the tension is too small, the fiber arrangement will be loose and affect the use; if the tension is too high, the optical performance of the fiber will be affected, and even the fiber will be broken.

Traditional optical fiber rewinding equipment uses a gravity balance wheel or a spring balance wheel as a tension adjustment mechanism, which can effectively adjust the tension. However, since the gravity of the balance wheel or the spring force is usually fixed, the adjusted tension value is also a fixed value. , although the tension can be changed by adjusting the mechanical weight on the balance wheel or replacing the spring, the operation is cumbersome and cannot be adjusted online in real time

[0004] In addition, if it is necessary to detect the tension of the optical fiber, the traditional method is to use a tension sensor, but because the tension sensor has the problems of small measurement range, easy damage, easy fatigue of the sensing component, and easy offset of the zero point, it is not suitable for long-term online tension detection

Moreover, since the force direction of the tension sensor is fixed, a special set of guide wheels is required, so that the force position of the tension sensor is just at its force point, so its assembly is troublesome, and the number of guide wheels on the fiber collection path will be increased

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