Correcting device for laser ranging

Abstract

The utility model provides a correction device for laser ranging, which can simplify the distance correction process, shorten the correction time of personnel, have high working efficiency and ensure the correction adjustment precision. Comprising a substrate, an attenuation adjusting area and a luminous flux adjusting area, the attenuation adjusting area and the luminous flux adjusting area are arranged on the substrate, an attenuation adjusting assembly is arranged in the attenuation adjusting area, a luminous flux adjusting assembly is arranged in the luminous flux adjusting area, and the attenuation adjusting assembly comprises an attenuation seat and an attenuation piece detachably assembled on the attenuation seat; the luminous flux adjusting assembly comprises a base, a motor, a diaphragm, a first gear and a second gear, the motor, the diaphragm, the first gear and the second gear are installed on the base, the first gear and the second gear are connected in a meshed mode, the motor is connected with the first gear, and an adjusting rod on the diaphragm is connected with the second gear through a diaphragm limiting ring; the laser ranging system is assembled on the base, so that returned light of laser ranging passes through the attenuation piece and the diaphragm and then enters the laser ranging system.

Description

Technical Field

[0001] The utility model relates to the technical field of laser distance measurement, in particular to a correction device for laser distance measurement. Background Art

[0002] The laser ranging system can realize accurate distance measurement of the target. In recent years, laser ranging technology has developed rapidly and its application scope has become increasingly wider. Therefore, the requirements for laser ranging accuracy are also getting higher and higher. The current laser ranging system generally has different ranging errors under different light fluxes. Therefore, it is necessary to perform distance correction on the laser ranging calibration process. However, this correction process requires the operator to constantly manually adjust the light flux, which is not only time-consuming and labor-intensive, but also has low work efficiency. In addition, the correction adjustment accuracy cannot be guaranteed, and thus the ranging accuracy of the laser ranging system cannot be guaranteed. Utility Model Content

[0003] In order to solve the problems existing in the prior art, the utility model provides a correction device for laser ranging, which can simplify the distance correction process, shorten the correction time of personnel, has high work efficiency, and can ensure the correction adjustment accuracy.

[0004] The technical solution adopted by the utility model to solve the technical problem is as follows:

[0005] A correction device for laser ranging, characterized in that it includes a substrate and an attenuation adjustment area and a luminous flux adjustment area arranged on the substrate, the attenuation adjustment area is arranged with an attenuation adjustment component, the luminous flux adjustment area is arranged with a luminous flux adjustment component, the attenuation adjustment component includes an attenuation seat and an attenuation plate detachably mounted on the attenuation seat; the luminous flux adjustment component includes a base and a motor, an aperture, a first gear, and a second gear mounted on the base, the first gear and the second gear are meshingly connected, the motor is connected to the first gear, and the adjustment rod on the aperture is connected to the second gear through an aperture limit ring; a laser ranging system is mounted on the base so that the return light of the laser ranging passes through the attenuation plate and the aperture and then enters the laser ranging system.

[0006] Furthermore, the attenuation adjustment component further comprises an attenuation sheet sleeve and an attenuation sheet pressing ring, the inner ring of the attenuation sheet sleeve is provided with threads, and the attenuation sheet is pressed tightly into the attenuation sheet sleeve by the attenuation sheet pressing ring;

[0007] Furthermore, the attenuation seat is U-shaped, a groove is embedded in the top of the attenuation seat, and the attenuation sheet sleeve is gap-assembled in the groove;

[0008] Furthermore, the light flux adjustment assembly further comprises an aperture pressure ring and a gear pressure ring, the aperture is assembled on the aperture pressure ring and then fixed to the base by bolts, and the gear pressure ring is connected to the aperture pressure ring by a fastener;

[0009] Furthermore, an arc-shaped opening is provided on the aperture pressure ring at the position of the adjusting rod, and the adjusting rod is connected to the aperture limiting ring after passing through the arc-shaped opening;

[0010] Furthermore, the gear pressing ring is a hollow structure, and the second gear is rotatably assembled in the gear pressing ring;

[0011] Furthermore, a motor box is fixed on the base, and the motor is assembled in the motor box;

[0012] Furthermore, an observation area and a control area are arranged on the substrate. The observation area is arranged with an observation instrument, and the control area is arranged with a control board. The motor is electrically connected to the control board.

[0013] The beneficial effect of the utility model is that the light attenuation rate can be adjusted by replacing different attenuation sheets, and the gear is driven to rotate by a motor, thereby driving the adjustment rod on the aperture to rotate to adjust the light flux. After the attenuation sheet is switched and the light flux is adjusted, the distance correction of the laser ranging system is achieved, thereby simplifying the distance correction process, shortening the correction time of personnel, and having high work efficiency. It can also ensure the correction adjustment accuracy, has a wide range of applications, and has good economic use value. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the assembly structure of the utility model;

[0015] Figure 2 yes Figure 1 A schematic diagram of the enlarged structure at point A;

[0016] Figure 3 This is a schematic diagram of the partial assembly structure of the utility model after the aperture limit ring is hidden; DETAILED DESCRIPTION

[0017] like Figure 1 , Figure 2 , Figure 3As shown, the utility model is a correction device for laser ranging, comprising a substrate 1 and an attenuation adjustment area and a luminous flux adjustment area arranged on the substrate 1, wherein the attenuation adjustment area is provided with an attenuation adjustment component 2, and the luminous flux adjustment area is provided with a luminous flux adjustment component 3, wherein the attenuation adjustment component 2 comprises an attenuation seat 4 and an attenuation sheet 5 detachably mounted on the attenuation seat 4; the luminous flux adjustment component 3 comprises a base 6 and a motor 7, an aperture 8, a first gear 9, and a second gear 10 mounted on the base 6, wherein the first gear 9 and the second gear 10 are meshedly connected, and the motor 7 is connected to the first gear 9, the adjustment rod 11 on the aperture 8 is connected to the second gear 10 through the aperture limit ring 12, and driven by the motor 7, the aperture 8 can switch different customized light flux levels, the switching range is replaceable, and the application range is wide, which is suitable for laser ranging systems 13 with different distances and different laser energies; the laser ranging system 13 is assembled on the base 6, so that the return light of the laser ranging passes through the attenuation plate 5 and the aperture 8 and then enters the laser ranging system 13, wherein the laser ranging system 13 adopts the existing laser ranging equipment.

[0018] The attenuation adjustment component 2 also includes an attenuation sheet sleeve 14 and an attenuation sheet pressing ring 15. The inner ring of the attenuation sheet sleeve 14 is provided with threads, and the outer side is a smooth curved surface; the attenuation sheet 5 is pressed into the attenuation sheet sleeve 14 by the attenuation sheet pressing ring 15 to keep it from loosening and shaking; the attenuation sheet 5 can be replaced or added in multiple layers to ensure different attenuation degrees to meet testing requirements; the attenuation seat 4 is U-shaped, and a groove 16 is embedded in the top of the attenuation seat 4. The attenuation sheet sleeve 14 is gap-assembled in the groove 16 and can be rotated or replaced to achieve switching of different attenuation rates. The attenuation sheet 5 with different customized attenuation degrees can be switched through the groove 16. It has a wide range of applications and is suitable for laser ranging systems 13 with different distances and different laser energies.

[0019] The light flux adjustment assembly 3 also includes an aperture pressure ring 17 and a gear pressure ring 18. The aperture 8 is assembled on the aperture pressure ring 17 and fixed to the base 6 by bolts 19. The gear pressure ring 18 is connected to the aperture pressure ring 17 by a fastener 20. The gear pressure ring 18 is a hollow structure, and the second gear 10 is rotatably assembled in the gear pressure ring 18.

[0020] An arc-shaped opening 21 is provided on the aperture pressure ring 17 at the position of the adjusting rod 11. The adjusting rod 11 passes through the arc-shaped opening 21 and is connected to the aperture limit ring 12. The adjusting rod 11 can be adjusted and rotated by 90°, which is equivalent to switching the size range of the central aperture of the aperture 8.

[0021] A motor box 22 is fixed on the base 6, and the motor 7 is assembled in the motor box 22; an observation area 23 and a control area are also arranged on the base plate 1. The observation area 23 is arranged with an observation instrument (not shown in the figure), and the control area is arranged with a control board 24. The motor 7 is electrically connected to the control board 24, and the control board 24 controls the rotation of the motor 7, so that the light flux of different fixed points can be switched freely, and different customized light flux levels can be switched. The switching range is replaceable and has a wide range of applications. It is suitable for laser ranging systems 13 with different distances and different laser energies.

[0022] The utility model has a simple structure, high adjustment accuracy, and a high degree of variability. It simulates tests in different environments by changing the light attenuation rate and electrically changing the luminous flux, and is used to correct the distance measurement of the laser ranging system 13. Specifically, it is used in conjunction with an observation and aiming instrument during use. Different targets are first observed through the observation and aiming instrument to match the distance measurement targets of different laser ranging systems 13. The return light of the laser ranging passes through the attenuation adjustment area and the luminous flux adjustment area and then enters the laser ranging system 13. Then, after the attenuation plate 5 is switched and the luminous flux is adjusted, the distance measurement correction of the laser ranging system 13 can be achieved, and the distance measurement accuracy of the laser ranging system 13 can be guaranteed. That is to say, when the attenuation plate 5 is switched, different incident light can be achieved. The attenuation rate of the light flux can be adjusted to achieve the change of the light flux of different incident lights, and the amount of light passing through can be changed, which is convenient for distance correction in the laser ranging calibration process, that is, for different optical signals obtained, different test data can be obtained in theory, and then the corresponding compensation data can be obtained by integrating these data. According to this data, the existing algorithm is compensated and corrected for the same ranging distance to ensure the ranging accuracy of the ranging system, thereby simplifying the distance correction process, shortening the correction time of personnel, and improving work efficiency. In addition, the utility model integrates the sighting instrument, control board 24, motor 7, base 6, etc. on the same substrate 1, with a high degree of integration, space saving, and easy operation.

[0023] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

[0024] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A correction device for laser ranging, characterized in that: It comprises a substrate and an attenuation adjustment area and a luminous flux adjustment area arranged on the substrate, the attenuation adjustment area is arranged with an attenuation adjustment component, the luminous flux adjustment area is arranged with a luminous flux adjustment component, the attenuation adjustment component comprises an attenuation seat and an attenuation plate detachably mounted on the attenuation seat; the luminous flux adjustment component comprises a base and a motor, an aperture, a first gear and a second gear mounted on the base, the first gear and the second gear are meshingly connected, the motor is connected to the first gear, and the adjustment rod on the aperture is connected to the second gear through an aperture limit ring; a laser ranging system is mounted on the base so that the return light of the laser ranging passes through the attenuation plate and the aperture and then enters the laser ranging system.

2. A correction device for laser ranging according to claim 1, characterized in that: The attenuation adjustment component also includes an attenuation plate sleeve and an attenuation plate pressing ring. The inner ring of the attenuation plate sleeve is provided with threads, and the attenuation plate is pressed tightly into the attenuation plate sleeve through the attenuation plate pressing ring.

3. A correction device for laser ranging according to claim 2, characterized in that: The attenuation seat is U-shaped, a groove is embedded in the top of the attenuation seat, and the attenuation sheet sleeve is gap-assembled in the groove.

4. A correction device for laser ranging according to claim 1, characterized in that: The light flux adjustment assembly also includes an iris pressure ring and a gear pressure ring. The iris is assembled on the iris pressure ring and then fixed to the base by bolts. The gear pressure ring and the iris pressure ring are connected by fasteners.

5. A correction device for laser ranging according to claim 4, characterized in that: An arc-shaped opening is provided on the aperture pressure ring at the position of the adjusting rod, and the adjusting rod is connected with the aperture limiting ring after passing through the arc-shaped opening.

6. A correction device for laser ranging according to claim 4, characterized in that: The gear pressing ring is a hollow structure, and the second gear is rotatably assembled in the gear pressing ring.

7. A correction device for laser ranging according to claim 1, characterized in that: A motor box is fixed on the base, and the motor is assembled in the motor box.

8. The correction device for laser ranging according to claim 1, characterized in that: The substrate is also provided with an observation area and a control area. The observation area is provided with an observation instrument. The control area is provided with a control board. The motor is electrically connected to the control board.

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