阅读说明：本技术 一种具有双向温度抑制作用的光纤环绕制方法 (Optical fiber ring winding method with bidirectional temperature inhibition effect ) 是由 陈来柱 于 2020-12-18 设计创作，主要内容包括：本发明公开了一种具有双向温度抑制作用的光纤环绕制方法,包括如下步骤：1)切割保偏光纤,然后将保偏光纤绕设在2个分纤盘上；2)将绕制工装安装到绕制设备上,然后将两分纤盘安装到绕制设备上；3)绕制光纤环第一层；4)绕制光纤环第二层；5)绕制光纤环第三层；6)绕制光纤环第四层；7)重复步骤3)-步骤6),完成整个光纤环的绕制。本发明能够有效对光纤环径向和轴向温度进行抑制,从而有效抑制光纤环的Shupe误差。(The invention discloses a method for winding an optical fiber ring with a bidirectional temperature inhibiting effect, which comprises the following steps: 1) cutting the polarization maintaining optical fiber, and winding the polarization maintaining optical fiber on 2 fiber distribution discs; 2) mounting a winding tool on winding equipment, and then mounting two fiber separating discs on the winding equipment; 3) winding a first layer of the optical fiber ring; 4) winding a second layer of the optical fiber ring; 5) winding a third layer of the optical fiber ring; 6) winding a fourth layer of the optical fiber ring; 7) and repeating the steps 3) -6) to finish the winding of the whole optical fiber ring. The invention can effectively inhibit the radial and axial temperature of the optical fiber ring, thereby effectively inhibiting the Shupe error of the optical fiber ring.)

1. A method for winding an optical fiber ring with bidirectional temperature inhibition effect is characterized in that: the method comprises the following steps:

1) calculating and cutting a polarization maintaining optical fiber with required length, marking the middle point of the polarization maintaining optical fiber, respectively marking the polarization maintaining optical fibers at two sides of the middle point as an optical fiber a section and an optical fiber b section, respectively winding the optical fiber a section and the optical fiber b section on 2 fiber distribution discs from the end parts of the optical fiber a section and the optical fiber b section of the polarization maintaining optical fiber to the middle point direction, wherein tail fibers with certain length are respectively reserved at the end parts of the optical fiber a section and the optical fiber b section;

2) mounting a winding tool on winding equipment, wherein the winding tool comprises a cylindrical framework, and a ring-shaped baffle A and a ring-shaped baffle B, and the baffle A and the baffle B are respectively detachably mounted at two ends of the framework; then, the two fiber distribution discs are installed on winding equipment, the middle point of the polarization maintaining optical fiber is located in a winding tool, and the polarization maintaining optical fiber is close to the baffle A and is attached to the framework;

3) winding the section a of the optical fiber from the baffle A to the baffle B along the fiber winding ring until the section a of the optical fiber is contacted with the baffle B, and then winding along the direction from the inner edge to the outer edge of the baffle B until the section a of the optical fiber is close to the outer edge of the baffle B, thereby completing the first layer winding of the optical fiber ring;

4) winding an optical fiber B section along the baffle A to the baffle B direction, and after the optical fiber B section is contacted with the radial section of the upper layer of the optical fiber ring, winding the optical fiber B section along the inner edge of the baffle B to the outer edge of the baffle B until the optical fiber B section is close to the outer edge of the baffle B, thereby completing the second layer winding of the optical fiber ring;

5) winding the section B of the optical fiber along the outer edge of the baffle B to the inner edge of the baffle B until the section B of the optical fiber is contacted with the axial section of the upper layer of the optical fiber ring, and then winding the optical fiber along the baffle B to the direction of the baffle A until the optical fiber is close to the baffle A, thereby completing the third layer winding of the optical fiber ring;

6) winding an optical fiber a section along the outer edge of the baffle B to the inner edge of the baffle B until the optical fiber a section is contacted with the axial section of the upper layer of the optical fiber ring, and then winding the optical fiber a section along the baffle B to the direction of the baffle A until the optical fiber a section is close to the baffle A, thereby completing the winding of the fourth layer of the optical fiber ring;

7) and repeating the steps 3) to 6), wherein the first layer of the optical fiber ring in each repeated process starts to be wound on the last layer of the optical fiber ring in the previous winding process until the 4 Nth layer of the optical fiber ring is wound, and the whole optical fiber ring is wound, wherein N is an integer larger than or equal to 1.

2. A method of winding an optical fiber loop having bi-directional temperature suppression as claimed in claim 1, wherein: the polarization maintaining optical fiber is subjected to gum dipping treatment before winding, so that a layer of adhesive is wrapped on the polarization maintaining optical fiber.

3. A method of winding an optical fiber loop having bi-directional temperature suppression as claimed in claim 2, wherein: in the winding process of the steps 3) to 7), the polarization maintaining optical fiber is cured while being wound by curing the polarization maintaining optical fiber.

4. A method of winding an optical fiber ring having bi-directional temperature suppression as claimed in claim 3, wherein: the curing treatment mode is heating curing or ultraviolet curing.

5. A method of winding an optical fiber loop having bi-directional temperature suppression as claimed in claim 1, wherein: and each circle of polarization-maintaining optical fiber of two adjacent layers of the optical fiber ring is distributed in a staggered manner.

6. A method of winding an optical fiber loop having bi-directional temperature suppression as claimed in claim 1, wherein: and (5) adjusting the winding sequence to be as follows according to the winding mode of the steps 3) -6): and (3) repeatedly winding the optical fiber section a, the optical fiber section b, the optical fiber section a and the optical fiber section b, wherein the octupole symmetry winding can be carried out.

7. A method of winding an optical fiber loop having bi-directional temperature suppression as claimed in claim 1, wherein: and (5) adjusting the winding sequence to be as follows according to the winding mode of the steps 3) -6): the method comprises the following steps of A section of optical fiber, B section of optical fiber, A section of optical fiber, B section of optical fiber, A section of optical fiber, B section of optical fiber, A section of optical fiber, B section of optical fiber and A section of optical fiber.

Technical Field

The invention relates to the technical field of optical fiber ring processing, in particular to an optical fiber ring winding method with a bidirectional temperature inhibition effect.

Background

The optical fiber ring is sensitive to the abnormal ambient temperature, and the phase error caused by the ambient temperature is in direct proportion to the temperature change rate and the weight factor related to the position on the section of the optical fiber; the further away from the fiber ring midpoint, the greater the weight factor. If the thermal perturbations on two segments of the fiber that are point symmetric with respect to the fiber ring are the same, the temperature induced phase is cancelled out. At the present stage, quadrupole, octopole and sixteen pole symmetric winding methods are commonly adopted to inhibit Shupe error of the optical fiber ring. The winding methods achieve good effect of inhibiting the radial temperature of the optical fiber ring, but have no obvious effect of inhibiting the axial temperature of the optical fiber ring.

Along with the gradual improvement of the precision of the optical fiber gyroscope, the influence of the temperature on the precision of the optical fiber gyroscope is more obvious; therefore, it is necessary to develop a method for winding an optical fiber ring having a good suppression effect on both the radial and axial temperatures of the optical fiber ring.

Disclosure of Invention

In view of the above-mentioned shortcomings in the prior art, an object of the present invention is to solve the above-mentioned problems in the prior art, and to provide a method for winding an optical fiber ring with a bidirectional temperature suppression effect, which can effectively suppress radial and axial temperatures of the optical fiber ring, thereby effectively suppressing a Shupe error of the optical fiber ring.

In order to solve the technical problem, the technical scheme adopted by the invention is as follows: a method for winding an optical fiber ring with bidirectional temperature inhibition effect is characterized in that: the method comprises the following steps:

1) calculating and cutting a polarization maintaining optical fiber with required length, marking the middle point of the polarization maintaining optical fiber, respectively marking the polarization maintaining optical fibers at two sides of the middle point as an optical fiber a section and an optical fiber b section, respectively winding the optical fiber a section and the optical fiber b section on 2 fiber distribution discs from the end parts of the optical fiber a section and the optical fiber b section of the polarization maintaining optical fiber to the middle point direction, wherein tail fibers with certain length are respectively reserved at the end parts of the optical fiber a section and the optical fiber b section;

2) mounting a winding tool on winding equipment, wherein the winding tool comprises a cylindrical framework, and a ring-shaped baffle A and a ring-shaped baffle B, and the baffle A and the baffle B are respectively detachably mounted at two ends of the framework; then, the two fiber distribution discs are installed on winding equipment, the middle point of the polarization maintaining optical fiber is located in a winding tool, and the polarization maintaining optical fiber is close to the baffle A and is attached to the framework;

3) winding the section a of the optical fiber from the baffle A to the baffle B along the fiber winding ring until the section a of the optical fiber is contacted with the baffle B, and then winding along the direction from the inner edge to the outer edge of the baffle B until the section a of the optical fiber is close to the outer edge of the baffle B, thereby completing the first layer winding of the optical fiber ring;

4) winding an optical fiber B section along the baffle A to the baffle B direction, and after the optical fiber B section is contacted with the radial section of the upper layer of the optical fiber ring, winding the optical fiber B section along the inner edge of the baffle B to the outer edge of the baffle B until the optical fiber B section is close to the outer edge of the baffle B, thereby completing the second layer winding of the optical fiber ring;

5) winding the section B of the optical fiber along the outer edge of the baffle B to the inner edge of the baffle B until the section B of the optical fiber is contacted with the axial section of the upper layer of the optical fiber ring, and then winding the optical fiber along the baffle B to the direction of the baffle A until the optical fiber is close to the baffle A, thereby completing the third layer winding of the optical fiber ring;

6) winding an optical fiber a section along the outer edge of the baffle B to the inner edge of the baffle B until the optical fiber a section is contacted with the axial section of the upper layer of the optical fiber ring, and then winding the optical fiber a section along the baffle B to the direction of the baffle A until the optical fiber a section is close to the baffle A, thereby completing the winding of the fourth layer of the optical fiber ring;

7) and repeating the steps 3) to 6), wherein the first layer of the optical fiber ring in each repeated process starts to be wound on the last layer of the optical fiber ring in the previous winding process until the 4 Nth layer of the optical fiber ring is wound, and the whole optical fiber ring is wound, wherein N is an integer larger than or equal to 1.

Furthermore, before winding, the polarization maintaining optical fiber is subjected to gum dipping treatment, so that the polarization maintaining optical fiber is wrapped with a layer of adhesive.

Further, in the winding process of the steps 3) to 7), the polarization maintaining optical fiber is cured while being wound by performing curing treatment on the polarization maintaining optical fiber.

Further, the curing treatment mode is heating curing or ultraviolet curing.

Furthermore, the adjacent two layers of the polarization maintaining optical fibers of the optical fiber ring are distributed in a staggered mode.

Preferably, referring to the winding modes of the steps 3) -6), the winding sequence is adjusted to be as follows: and (3) repeatedly winding the optical fiber section a, the optical fiber section b, the optical fiber section a and the optical fiber section b, wherein the octupole symmetry winding can be carried out.

Preferably, referring to the winding modes of the steps 3) -6), the winding sequence is adjusted to be as follows: the method comprises the following steps of A section of optical fiber, B section of optical fiber, A section of optical fiber, B section of optical fiber, A section of optical fiber, B section of optical fiber, A section of optical fiber, B section of optical fiber and A section of optical fiber.

Compared with the prior art, the invention has the following advantages: by the winding mode, the optical fiber ring can have four-pole symmetrical structures in two orthogonal directions of the radial direction and the axial direction, so that the inhibition effect of Shupe error in the two orthogonal directions of the radial direction and the axial direction is realized, and finally, a good temperature inhibition effect can be achieved in the two orthogonal directions of the optical fiber ring.

Meanwhile, in order to ensure the effect of participating in elimination of the thermally induced error after temperature suppression, the method can also realize octupole symmetric winding, sixteen-pole symmetric winding and the like in the radial direction and the axial direction.

Drawings

FIG. 1 is a schematic structural diagram of the present invention.

In the figure: 1-optical fiber a section, 2-optical fiber B section, 3-framework, 4-baffle A, 5-baffle B.

Detailed Description

The invention will be further explained with reference to the drawings and the embodiments.

Example (b): referring to fig. 1, a method for winding an optical fiber loop with bidirectional temperature suppression includes the following steps:

1) calculating and cutting the polarization maintaining optical fiber with the required length, marking the midpoint of the polarization maintaining optical fiber, and respectively marking the polarization maintaining optical fibers on two sides of the midpoint as an optical fiber a section 1 and an optical fiber b section 2; and respectively winding the optical fiber section a 1 and the optical fiber section b 2 on 2 fiber distribution disks from the end parts of the optical fiber section a 1 and the optical fiber section b 2 of the polarization maintaining optical fiber to the middle point direction. In the specific implementation process, firstly, the polarization maintaining optical fiber with the required length is wound on the first fiber distribution disc from the optical fiber barrel, then, the polarization maintaining optical fiber with the half required length is wound on the second fiber distribution disc, at the moment, the middle point of the polarization maintaining optical fiber is exposed between the first fiber distribution disc and the second fiber distribution disc, and the end parts of the optical fiber section a 1 and the optical fiber section b 2 are respectively positioned at the innermost sides of the two fiber distribution discs. The ends of the optical fiber a section 1 and the optical fiber b section 2 are respectively provided with a tail fiber with a certain length, and the tail fibers of the optical fiber a section 1 and the optical fiber b section 2 are equal in length. In specific implementation, the polarization maintaining optical fiber is subjected to gum dipping treatment before being wound, so that a layer of adhesive is wrapped on the polarization maintaining optical fiber; therefore, the polarization maintaining optical fiber can be connected and fastened better in the winding process, and the winding stability is better.

2) The winding tool is installed on winding equipment and comprises a cylindrical framework 3, an annular baffle A4 and an annular baffle B5, wherein the baffle A4 and the baffle B5 are detachably installed at two ends of the framework 3 respectively. And then the two fiber distribution discs are installed on the winding equipment, the midpoint of the polarization maintaining optical fiber is positioned in the winding tool, and the polarization maintaining optical fiber is close to the baffle A4 and is attached to the framework 3.

3) And (3) winding the section a 1 of the optical fiber from the baffle A4 to the baffle B5 (the axial direction of the framework 3) along the fiber winding ring until the optical fiber of the section a 1 of the optical fiber is contacted with the baffle B5, and then winding along the direction from the inner edge to the outer edge of the baffle B5 (the radial direction of the framework 3) until the section a 1 of the optical fiber is close to the outer edge of the baffle B5, thereby completing the first layer winding of the optical fiber ring.

4) On the basis of the step 3), switching the rotating direction of the winding tool, and winding the optical fiber B section 2 along the baffle A4 to the baffle B5 (on the axial section of the upper layer of polarization maintaining optical fiber); when the section 2 of the optical fiber B is contacted with the radial section of the upper layer of the optical fiber ring, the optical fiber B is wound along the inner edge of the baffle B5 to the outer edge of the baffle B5 (the radial section is tightly attached to the upper layer of the optical fiber ring); and finishing the second layer winding of the optical fiber ring until the section 2 of the optical fiber B is close to the outer edge of the baffle B5.

5) On the basis of the step 4), winding a fiber B section 2 (clinging to a radial section of the upper layer of the fiber ring) along the outer edge of the baffle B5 to the inner edge of the baffle B5; winding the section 2 of the optical fiber B along the baffle B5 to the baffle A4 direction after the section contacts with the axial section of the upper layer of the optical fiber ring (on the axial section of the upper layer of the polarization maintaining optical fiber); and finishing the third layer winding of the optical fiber ring until the section 2 of the optical fiber b is close to the baffle A4.

6) On the basis of the step 5), switching the rotating direction of the winding tool (a radial section clinging to the upper layer of the optical fiber ring) to wind an optical fiber a section 1 along the outer edge of the baffle B5 to the inner edge direction of the baffle B5; and after the section a 1 of the optical fiber is contacted with the axial section of the upper layer of the optical fiber ring, winding the optical fiber (on the axial section of the upper layer of the polarization maintaining optical fiber) along the baffle B5 to the baffle A4 until the section a 1 of the optical fiber is close to the baffle A4, and finishing the winding of the fourth layer of the optical fiber ring.

In the winding process of the steps 3) to 7), curing the polarization maintaining optical fiber while winding; by controlling the rotating speed of the winding tool, the polarization maintaining optical fiber can be ensured to be solidified after being in contact with the upper layer of the optical fiber ring, so that the stability of the winding process is better. Wherein, according to the kind of glue solution, select heating curing or ultraviolet curing to ensure that solidification speed is faster, thereby improve the coiling efficiency of optic fibre ring. In order to ensure the accuracy of the optical fiber ring, the adjacent two layers of the optical fiber ring are distributed with each turn of polarization maintaining optical fiber in a staggered way.

7) Repeating the step 3) to the step 6), wherein the first layer of the optical fiber ring in each repeating process starts to be wound on the last layer of the optical fiber ring in the previous winding process; and finishing the winding of the whole optical fiber ring until finishing the winding of the 4 Nth layer of the optical fiber ring, wherein N is an integer more than or equal to 1.

By the winding mode, the optical fiber ring can have four-pole symmetrical structures in two orthogonal directions of the radial direction and the axial direction, so that the inhibition effect of Shupe error in the two orthogonal directions of the radial direction and the axial direction is realized, and finally, a good temperature inhibition effect can be achieved in the two orthogonal directions of the optical fiber ring.

As an embodiment, referring to the winding method of steps 3) -6), the winding sequence is adjusted to: the optical fiber section a, the optical fiber section b, the optical fiber section a and the optical fiber section b are repeated, octupole symmetric winding can be carried out, and the elimination effect of the thermal error after temperature suppression can be further ensured.

As an embodiment, referring to the winding method of steps 3) -6), the winding sequence is adjusted to: the method comprises the steps of optical fiber a section-optical fiber b section-optical fiber a section-optical fiber b section-optical fiber a section-optical fiber b section-optical fiber a section, and then repeating the steps, sixteen-pole symmetric winding can be carried out, and the effect of eliminating the thermally induced errors after temperature suppression can be further guaranteed.

Finally, it should be noted that the above embodiments are only used for illustrating the technical solutions of the present invention and not for limiting the technical solutions, and those skilled in the art should understand that modifications or equivalent substitutions can be made on the technical solutions of the present invention without departing from the spirit and scope of the technical solutions, and all that should be covered by the claims of the present invention.