Airborne high-precision optical fiber inertial navigation testing device

Abstract

The utility model belongs to the technical field of optical fibers, and particularly relates to an airborne high-precision optical fiber inertial navigation testing device which comprises a testing protection box, a connecting rod is fixedly mounted on the inner wall of the testing protection box, one end of the connecting rod is fixedly connected with a testing placement plate, and a vibration exciter is fixedly mounted at the bottom of the testing placement plate. After the optical fiber breakpoint tester is started, the optical fiber inertial navigation equipment body can be tested and processed in real time through the test wire, and meanwhile, the vibration exciter can drive the test placement plate and the fixed optical fiber inertial navigation equipment body to shake after being started; the optical fiber breakpoint tester can also test an optical fiber inertial navigation equipment body, simulate airborne optical fiber inertial navigation and test whether optical fiber transmission of the optical fiber inertial navigation is smooth and qualified or not under the airborne use condition, so that the optical fiber inertial navigation can be tested in different use states, and the optical fiber inertial navigation test accuracy and effect are improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of optical fibers, and in particular relates to an airborne high-precision optical fiber inertial navigation test device. Background Art

[0002] Fiber optic is short for optical fiber, which is a fiber made of glass or plastic that can be used as a light transmission tool. The transmission principle is "total reflection of light". The fine optical fiber is encapsulated in a plastic sheath, which allows it to bend without breaking. Usually, the transmitter at one end of the optical fiber uses a light-emitting diode or a laser to transmit light pulses to the optical fiber, and the receiver at the other end of the optical fiber uses a photosensitive element to detect the pulses. Often, the two terms optical fiber and optical cable are confused. Most optical fibers must be covered with several layers of protective structure before use. The covered cable is called an optical cable. The protective layer and insulation layer on the outer layer of the optical fiber can prevent the surrounding environment from damaging the optical fiber, such as water, fire, electric shock, etc. There are many types of optical fibers, and the required functions and performance vary depending on the purpose. The high-precision fiber-optic inertial navigation equipment used on airborne equipment needs to be tested during the production and processing to test whether the transmission of the fiber-optic inertial navigation equipment is accurate. However, the current test of fiber-optic inertial navigation has a relatively single function, and generally uses a fiber optic tester for testing. It cannot be applied to different usage conditions for testing, which can easily affect the accuracy of the fiber-optic inertial navigation test and reduce the test effect. Therefore, an airborne high-precision fiber-optic inertial navigation test device is needed. Utility Model Content

[0003] In order to solve the problems raised in the above-mentioned background technology, the utility model provides an airborne high-precision fiber-optic inertial navigation test device, which solves the problem that the current fiber-optic inertial navigation test has a relatively single function and is generally tested using a fiber optic tester, which cannot be applied to different usage conditions for testing, easily affects the accuracy of the fiber-optic inertial navigation test, and reduces the test effect.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an airborne high-precision fiber-optic inertial navigation test device, comprising a test protection box, a connecting rod is fixedly installed on the inner wall of the test protection box, one end of the connecting rod is fixedly connected to a test placement plate, an exciter is fixedly installed on the bottom of the test placement plate, a fiber-optic inertial navigation device body is arranged on the upper surface of the test placement plate, a connecting block is fixedly installed on the upper surface of the test placement plate, a U-shaped support block is fixedly installed on one side of the connecting block, an electric push rod is fixedly installed on the inner wall of the U-shaped support block, one end of the electric push rod is fixedly connected to a clamping plate, a fiber breakpoint tester is fixedly installed on one side of the test protection box, a test wire is fixedly connected to the surface of the fiber breakpoint tester, and a display screen is fixedly installed on the surface of the fiber breakpoint tester.

[0005] Preferably, a rubber anti-slip pad is provided on the upper surface of the test placement plate.

[0006] Preferably, the electric push rod is connected to the clamping plate via a connecting block, and two of each of the connecting block, the electric push rod and the clamping plate are provided.

[0007] Preferably, one end of the test wire is connected to the fiber optic inertial navigation device body.

[0008] Preferably, warning lights are fixedly mounted on both sides of the upper surface of the test protection box, and the number of the warning lights is two.

[0009] Preferably, two side hinges of the test protection box are connected with protection covers, and an L-shaped handle is fixedly installed on one side of the protection cover.

[0010] Preferably, the bottom of the test protection box is movably connected with a universal wheel, and the surface of the test protection box is fixedly mounted with a handle.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] After startup, the fiber optic breakpoint tester can test the fiber optic inertial navigation device body in real time through the test wire. At the same time, the exciter can drive the test placement board and the fixed fiber optic inertial navigation device body to vibrate after startup. When the fiber optic inertial navigation device body is vibrating, the fiber optic breakpoint tester can also test the fiber optic inertial navigation device body and simulate the fiber optic inertial navigation used onboard to test whether the fiber optic transmission of the fiber optic inertial navigation is smooth and qualified when used onboard. In this way, the fiber optic inertial navigation can be tested in different usage states to improve the accuracy and effect of the fiber optic inertial navigation test. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0014] Figure 1 This is the first three-dimensional structural diagram of the utility model;

[0015] Figure 2 This is a second three-dimensional structural diagram of the utility model;

[0016] Figure 3 It is a three-dimensional structural diagram of the vibrator of the utility model.

[0017] In the figure: 1. Test protection box; 2. Connecting rod; 3. Test placement plate; 4. Exciter; 5. Fiber optic inertial navigation equipment body; 6. Connecting block; 7. U-shaped support block; 8. Electric push rod; 9. Clamping plate; 10. Fiber optic breakpoint tester; 11. Test lead; 12. Display screen; 13. Warning light; 14. Protective cover; 15. L-shaped handle; 16. Universal wheel; 17. Grip. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0019] See also Figure 1-3 The utility model provides the following technical solutions: 1. An airborne high-precision fiber-optic inertial navigation test device, comprising a test protection box 1, a connecting rod 2 is fixedly installed on the inner wall of the test protection box 1, one end of the connecting rod 2 is fixedly connected to a test placement plate 3, an exciter 4 is fixedly installed on the bottom of the test placement plate 3, a fiber-optic inertial navigation device body 5 is arranged on the upper surface of the test placement plate 3, a connecting block 6 is fixedly installed on the upper surface of the test placement plate 3, a U-shaped support block 7 is fixedly installed on one side of the connecting block 6, an electric push rod 8 is fixedly installed on the inner wall of the U-shaped support block 7, one end of the electric push rod 8 is fixedly connected to a clamping plate 9, a fiber breakpoint tester 10 is fixedly installed on one side of the test protection box 1, a test wire 11 is fixedly connected to the surface of the fiber breakpoint tester 10, and a display screen 12 is fixedly installed on the surface of the fiber breakpoint tester 11.

[0020] The staff places the fiber optic inertial navigation device body 5 to be tested on the test placement plate 3, and the electric push rod 8 is started to drive the clamping plate 9 to move through the connecting block 6, so that the two clamping plates 9 can move and adjust with each other. The clamping plate 9 can clamp and fix the fiber optic inertial navigation device body 5 during the test, thereby improving the stability of the fiber optic inertial navigation device body 5 during the test. After the fiber optic inertial navigation device body 5 is fixed, the staff can connect the test wire 11 to the fiber optic inertial navigation device body 5, and at the same time, the optical fiber breakpoint tester 10 is started. After starting, the optical fiber breakpoint tester 10 can test and process the fiber optic inertial navigation device body 5 in real time through the test wire 11, and display the optical fiber transmission data information of the fiber optic inertial navigation device body 5 through the display screen 12. The staff can observe the data of the optical fiber test of the fiber optic inertial navigation device body 5 through the display screen 12, and at the same time, the vibrator 4 is started. After starting, the vibrator 4 can drive the test placement plate 3 to vibrate, and the test placement plate 3 can then drive the fixed fiber optic inertial navigation device body 5 to vibrate. During the vibrating process of the fiber optic inertial navigation device body 5, the optical fiber breakpoint tester 10 can also test the fiber optic inertial navigation device body 5, simulate the fiber optic inertial navigation device body 5 used onboard, and test whether the optical fiber transmission of the fiber optic inertial navigation device body 5 is smooth and qualified when used onboard. In this way, the fiber optic inertial navigation can be tested in different usage states to improve the accuracy and effect of the fiber optic inertial navigation test. All electrical equipment in this device is powered by a built-in battery.

[0021] In one aspect of the present embodiment, after being started, the electric push rod 8 can drive the clamping plate 9 to move through the connecting block 6, so that the two clamping plates 9 can move and adjust relative to each other. The clamping plate 9 can clamp and fix the fiber optic inertial navigation device body 5 during testing, thereby improving the stability of the fiber optic inertial navigation device body 5 during testing and preventing the fiber optic inertial navigation device body 5 from being damaged by bumps.

[0022] In one aspect of this embodiment, the rubber anti-skid pad on the test placement plate 3 can provide anti-skid protection for the fiber optic inertial navigation device body 5 during placement testing, thereby improving the anti-skid effect of the fiber optic inertial navigation device body 5 during testing.

[0023] In one aspect of this embodiment, two warning lights 13 are used to provide warning reminders around the testing device.

[0024] In one aspect of this embodiment, the optical fiber breakpoint tester 10 can test the optical fiber inertial navigation device body 5 in use through the test wire 11 after startup, and can quickly and accurately measure the distance of the breakpoint, end, dirty end face / connector or strong reflection event of the optical fiber inertial navigation device body, and determine whether the optical fiber transmission of the optical fiber inertial navigation device body 5 is qualified.

[0025] In one aspect of this embodiment, a worker can rotate the universal wheel 16 through the handle 17 so that the device can be moved to different positions for use to test the fiber optic inertial navigation device body 5 .

[0026] In one aspect of this embodiment, the staff can move the hinged protection cover 14 through the L-shaped handle 15 to open or close the test protection box 1, making it convenient for the staff to store and receive the test products.

[0027] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. An airborne high-precision fiber-optic inertial navigation test device, comprising a test protection box (1), characterized in that: A connecting rod (2) is fixedly installed on the inner wall of the test protection box (1), one end of the connecting rod (2) is fixedly connected to a test placement plate (3), an exciter (4) is fixedly installed on the bottom of the test placement plate (3), a fiber optic inertial navigation device body (5) is arranged on the upper surface of the test placement plate (3), a connecting block (6) is fixedly installed on the upper surface of the test placement plate (3), a U-shaped support block (7) is fixedly installed on one side of the connecting block (6), an electric push rod (8) is fixedly installed on the inner wall of the U-shaped support block (7), one end of the electric push rod (8) is fixedly connected to a clamping plate (9), a fiber break point tester (10) is fixedly installed on one side of the test protection box (1), a test lead (11) is fixedly connected to the surface of the fiber break point tester (10), and a display screen (12) is fixedly installed on the surface of the fiber break point tester (10).

2. The airborne high-precision fiber-optic inertial navigation test device according to claim 1, characterized in that: The upper surface of the test placement plate (3) is provided with a rubber anti-slip pad.

3. The airborne high-precision fiber-optic inertial navigation test device according to claim 1, characterized in that: The electric push rod (8) is connected to the clamping plate (9) via a connecting block (6), and two of each of the connecting block (6), the electric push rod (8) and the clamping plate (9) are provided.

4. The airborne high-precision fiber-optic inertial navigation test device according to claim 1, characterized in that: One end of the test wire (11) is connected to the optical fiber inertial navigation device body (5).

5. The airborne high-precision fiber-optic inertial navigation test device according to claim 1, characterized in that: Warning lights (13) are fixedly mounted on both sides of the upper surface of the test protection box (1), and the number of the warning lights (13) is two.

6. The airborne high-precision fiber-optic inertial navigation test device according to claim 1, characterized in that: The two sides of the test protection box (1) are hingedly connected with a protection cover (14), and one side of the protection cover (14) is fixedly mounted with an L-shaped handle (15).

7. The airborne high-precision fiber-optic inertial navigation test device according to claim 1, characterized in that: The bottom of the test protection box (1) is movably connected with a universal wheel (16), and the surface of the test protection box (1) is fixedly mounted with a handle (17).

Images