SU1661577A1 - Method of winding of laser gyroscope optical fiber - Google Patents

Abstract

The invention relates to instrumentation, and specifically to the manufacture of spatial orientation sensors, in particular laser gyroscopes. The aim of the invention is to improve the accuracy of winding. The method consists in winding 1, 2, ..., N, N + 1, ..., N layers of optical fiber, each N and N + 1 layer is wound, forming a loop, as follows: a loop is formed perpendicular to the surface housing 2, pressing the free end of the fiber to the inner cylindrical surface of the housing, tilt the housing 2 at a given angle to the center of the housing, feed the loop at a decreasing speed, rotate the housing 2, and form a converging helix; opposite side serving loop with age rotating body 2, without changing the direction of rotation, and form a diverging loop. 3 il.

Description

FIG. 2

The invention relates to instrumentation, and specifically to the manufacture of spatial orientation sensors, in particular laser gyroscopes.

The aim of the invention is to improve the accuracy of winding.

Figure 1 shows a device for winding an optical fiber; figure 2 - the housing section; Fig. 3 shows a device for winding an optical fiber, isometric.

FIG. 1-3, optical fiber 1, body 2, first motor 3, first and second cones 4, antennae guides 5, panel 6, first and second rollers 7, fork 8, first spring 9, second motor 10, directions The sleeve 11, the first adjustment screw 12, the penetration screw 13, the first and second shafts 14, the first and second support forks 15, the first and second threaded sleeves 16, the first and second bearings 17, the third and fourth threaded sleeves 18, rusk 19, piston 20, second spring 21, internal rod-22, first axis 23, second adjusting screw 24, platform 25, second axis 26, yoke 27 and stand 28.

The device with which the method is carried out, works as follows.

The cones 4 are lowered, turning them around the axis 23 connecting the supporting forks 15 and the shafts 14. The supporting forks 15 and the threaded bushings 16 expose the cones 4 so that they lie with the base on the body 2 and with the apex on the surface of the inner rod 22, C using the deepening screw 13, turning it clockwise, press on the cracker 19 rigidly connected to the piston 20 and lower the piston 20 to a depth equal to the thickness of the fiber 1, the fiber 1 is inserted between the rollers 7 and pass through the inside of the guide bush 11, form a loop (as shown in figure 1) and it is passed between two pairs of guide antennae 5 so that the loop rises above the upper antennae by at least 5-10 mm, and the free end of the loop is pressed against the inner cylindrical surface of the housing 2 and is passed into the groove. The panel is tilted at an angle ρ first, for example, to the left, which is achieved with the help of an adjusting screw 24, which rotates clockwise to remove it to the left, as a result of which the panel is pressed against the bottom of the screw 24 by the action of a spring 9. the length and pushing the panel 6 to the right side using the same spring 9, provide

the inclination and fixation of the panel 6 is the angle p (FIG. 1), but in the opposite direction. Providing the inclination of the panel 6 at the angle p to the left, turn on the motor 3, which rotates

the housing 2 is clockwise (as shown in FIG. 1). To wind the diverging helix, the panel is tipped sideways into the body. Motor 3 rotates at a constant speed of 1 rps. At once

after switching on the engine 3 or simultaneously with it, the engine 10 is turned on, the rotation roller 7, which pulls the fiber into the guide sleeve 11. The rotation speed of the engine 10 is variable, so

as the rate of arrival of the optical fiber 1 must be equal to the speed of the point on the helix at any given time. Therefore, in the process of winding the helix, the fiber feed rate should decrease according to the law V and R, where V is the speed of rotation of the electric motor 3; R is the current radius from the center of the helix to the current location of the loop compression point. Cones 4 ensure coil integrity

spiral, clamp the coiled spiral to the surface of the piston 20. As soon as the diameter of the spiral is equal to the diameter of the inner rod 22, the engines 3 and 10 stop. So get

converging helix. Install, as described, panel 6 in the opposite direction on the angle. The plunge screw 13 lowers the piston 20 to a depth equal to the thickness of the optical fiber 1, include

a motor 3, which will rotate the housing 2 in the same direction and at the same speed, and include an electric motor 10, which. rotating in the same direction, feeds the fiber 1 at a speed in accordance with the described

dependence with the only difference that the radius R will increase and the velocity V will grow accordingly. Thus, the winding of the fiber 1 is carried out in the form of a diverging helix following

the fiber layer 1 will again be wound in a specified manner along a converging helix.

At the end of the winding of a given number of spirals (in general, N), the deepening screw 13 is turned out and, under the action of the spring 21, the piston 20 pushes the wound circuit (FIG. 3).

The number N, in particular, depends on the length of the optical fiber, as well as on the difference

the inner diameter of the housing 2 and the diameter of the inner rod 22.

Depending on the value of yrflaf, the force of pressing one fiber in the helix to another varies, i.e. angle value / selectable

From the required amount of force pressing one fiber to another, Depending on the direction of the deflection angle to the right or left), a diverging or converging spiral is obtained. The diameter of the loop is chosen to be less than or equal to the diameter of the inner rod 22 so that as the coil winds up and approaches the center of rotation, it does not run on the front coil.

Thus, with the proposed technical solution, the winding accuracy is increased due to the fact that there is no coil of coil per coil, the force of fiber pressure on the fiber also decreases, which in this case depends only on the elasticity of the fiber.

Claims (1)

Invention Formula The method of winding an optical fiber laser gyro, including winding 1.2p. n-H.N layer of optical fiber. characterized in that, in order to improve the winding accuracy, a fly is formed from an optical fiber, the lower end of which lies on the body with an internal rod, the loop is tilted to a predetermined angle to the center of the body, feed the loop at a decreasing speed, rotate the body and form a converging spiral; when the fiber reaches the top of the inner rod, tilt the loop in the opposite direction, feed the loop at increasing speed, rotate the body without changing the direction of rotation, and form expense loop loop. but D l I