Compact high-precision laser energy attenuation test system

Abstract

The utility model discloses a compact high-precision laser energy attenuation test system, which comprises a base, a driving steering engine is arranged on the base through a steering engine support, an attenuation wheel disc is arranged on the driving steering engine, a through hole and a plurality of attenuation sheets are arranged on the attenuation wheel disc, and the attenuation sheets are arranged on the through hole. The laser energy meter is installed on one side of the base through the laser energy meter support, an adjustable diaphragm is arranged on a receiving light path of the laser energy meter, the number of the attenuation wheel discs is at least three, and the attenuation multiplying power of penetrating laser is controlled by enabling through holes or attenuation pieces on the attenuation wheel discs to be coaxial. And laser emitted by the laser device is coaxial with the adjustable diaphragm through the through hole of each attenuation wheel disc or any attenuation sheet. According to the utility model, the attenuation sheet group with absorption performance is fixed in the collimation light path, and the purpose of energy attenuation of different multiplying powers is achieved by adjusting the combination of the attenuation sheets. And the influence of the light spot size on the laser energy attenuation is tested by adjusting the size of the diaphragm.

Description

TECHNICAL FIELD

[0001] The utility model belongs to laser testing technical field, concretely relates to a compact high accuracy laser energy attenuation test system. BACKGROUND

[0002] When the laser emitted by the laser irradiates the target plate at a long distance, sometimes the light spot presents uneven state. This unevenness not only affects the application effect of the laser, but also may hide the problem of the laser itself. In order to further explore the formation reason of uneven light spot, the outgoing light of the laser must be measured comprehensively, so as to accurately master the energy distribution of the emitted light.

[0003] Because the power emitted by the laser is different, therefore, in actual operation, the appropriate test platform needs to be built according to the specific situation of the laser. The test platform should be able to stably measure the energy of the laser, and have high accuracy. In addition, in order to deal with the measurement problem brought by high-power laser, it is also necessary to select appropriate attenuation piece to attenuate the outgoing laser, so as to ensure the measurement accuracy, and also protect the measuring equipment from the damage of high-energy laser. UTILITY MODEL CONTENT

[0004] The utility model provides a compact high accuracy laser energy attenuation test system in view of the deficiency of prior art, based on the development demand of reliability, light weight, realizes the system structure compact, cascade attenuation range big, easy operation, stable performance, strong environmental adaptability, can satisfy the application demand of laser energy attenuation test system through optimizing structure layout, optimizing attenuation piece magnification design.

[0005] The utility model realizes the purpose through the following technical scheme:

[0006] A compact high accuracy laser energy attenuation test system, including base, drive steering wheel is installed on the base through steering wheel support, attenuation wheel disc is installed on the drive steering wheel, a through hole and a plurality of attenuation pieces are equipped on the attenuation wheel disc, laser energy meter is installed with the one side of base through laser energy meter support, adjustable diaphragm is set up on laser energy meter receiving light path, the attenuation wheel disc is at least 3, the attenuation magnification of the laser passing through is controlled by making the through hole or attenuation piece on the unnecessary attenuation wheel disc coaxial, the outgoing laser of laser passes through the through hole or any attenuation piece of each attenuation wheel disc and adjustable diaphragm coaxial.

[0007] Further, the number of attenuation pieces on the attenuation wheel disc is 5.

[0008] Further, the drive steering wheel is connected with electric servo driving mechanism, which is used for controlling the rotation and inclination angle of the attenuation wheel disc.

[0009] Compared with the prior art, the utility model has the beneficial effects that

[0010] 1, realization mode is simple, compact structure, wide range of application;

[0011] 2, through multiple groups of cascade, improve the attenuation precision of attenuation piece group, control precision is high;

[0012] 3, attenuation range is big, can realize the highest 216 attenuation times, increases attenuation station and can realize more attenuation times;

[0013] 4, reduce attenuation piece group structure size and weight, improve the overall environmental adaptability;

[0014] 5, the variable diaphragm is arranged in the light path, can test the influence of light spot size on attenuation effect;

[0015] 6, response is fast, uses laser energy meter to test attenuation effect in real time, is applicable to the application scene of need fast adjustment.

[0016] Summarized above, the utility model can not change laser distribution, also not produce multiple reflection light, no stray light interference;Can realize wide range dynamic attenuation, adopts the form of cascade and expands attenuation range, and synchronously completes laser energy (power) test;It has no requirement to the polarization characteristics of incident laser, is applicable to various optical systems, and the application range is wide;Simple design structure, easy operation, compact structure, strong reliability. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to more clearly illustrate the embodiment of the utility model or the technical scheme in the prior art, the following will briefly introduce the drawing needed to be used in the embodiment or prior art description. Obviously, the drawing in the following description is only exemplary, and for those skilled in the art, other implementation drawings can be derived according to the provided drawing without creating labor.

[0018] Figure 1 It is the structure schematic drawing of the utility model under A visual angle;

[0019] Figure 2 It is the structure schematic drawing of the utility model under B visual angle.

[0020] The reference numeral in the drawing: 1-variable diaphragm, 2-attenuation wheel disc, 3-through hole, 4-laser energy meter, 5-laser energy meter support, 6-bottom plate, 7-drive steering machine, 8-steering machine support. DETAILED DESCRIPTION

[0021] Exemplary embodiments of the present application will be described in greater detail below with reference to the accompanying drawings. Although exemplary embodiments of the present application are shown in the drawings, it is understood that the present application can be implemented in various forms and should not be limited by the embodiments set forth herein. Rather, these embodiments are provided so that the present application can be more thoroughly understood, and so that the scope of the present application can be conveyed to those skilled in the art. It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict. The present application will be described in detail below with reference to the accompanying drawings and in conjunction with the embodiments.

[0022] The utility model discloses a compact high accuracy laser energy attenuation test system embodiment, including the bottom plate 6, 3 rudders support 8 and laser energy meter support 5 are installed on the bottom plate 6, the drive rudder 7 is installed on the rudder support 8, the attenuation wheel disc 2 is installed on the drive rudder 7, the laser energy meter support 5 is installed with laser energy meter 4, be equipped with 6 through -holes 3 on the attenuation wheel disc 2, reserve one through -hole 3, the remaining 5 through -holes 3 install different specifications' attenuation sheet, install variable diaphragm 1 between laser energy meter 4 and attenuation wheel disc 2, the drive rudder 7 is connected with electric servo drive mechanism, is used for controlling the inclination and rotation of attenuation wheel disc 2.

[0023] The whole device is installed on a fixed plane, ensuring that the center height of the attenuation station is consistent. Different combinations achieve different precision laser energy attenuation. The electric servo drive mechanism is used to receive control instructions to rotate the attenuation wheel disc 2 to select the attenuation ratio. The variable diaphragm 1 is used to adjust the size of the laser spot passing through. The laser energy meter 4 is used to measure the laser energy (power). The adjustable diaphragm 1 is located on the receiving end of the laser energy meter 4. The three attenuation wheel discs 2 have a through -hole 3 or an attenuation sheet in the light path of the laser irradiation to the diaphragm 1. Different attenuation combinations are formed by rotating the attenuation wheel disc 2 to achieve the effect of testing different power lasers.

[0024] The system can achieve arbitrary proportional attenuation of laser energy (power) and simultaneously test the current laser energy (power) value with high precision, compact structure and strong reliability.

[0025] The utility model can adjust the attenuation ratio through electric control and simultaneously test the attenuation effect. The compact high-precision laser energy attenuation system.

[0026] The variable diaphragm 1 is used to adjust the size of the light spot passing through the attenuation wheel disc. The attenuation wheel disc 2 is used to adjust the attenuation ratio of the attenuation sheet. The attenuation sheet is used to achieve laser energy attenuation. The drive rudder 7 of the attenuation wheel disc is used to control the use station of the attenuation wheel disc 2 to realize the rotation of the attenuation wheel disc. The rudder support 8 is used to install the drive rudder 7 and the attenuation wheel disc 2.

[0027] Through the above components, 216 kinds of attenuation ratio adjustment can be realized, wide range dynamic attenuation can be realized, and attenuation effect can be tested synchronously. The number of the three wheel disc stations can be adjusted according to requirements, and attenuation ratios of different numbers can be realized.

[0028] The utility model discloses can realize observation laser energy distribution, test different power laser through adjustable diaphragm 1 and different attenuation ratio combination.

[0029] The utility model discloses the specific implementation steps are as follows

[0030] First step: the relative position and the size appropriate support fixed thread hole are processed on the bottom plate 6;

[0031] Second step: the attenuation piece is fixed in the through -hole 3 of attenuation wheel disc 2 through optical glue;

[0032] Third step: attenuation wheel disc 2 structural member is fixed on the rotating shaft that the rudder support 8 extends through screw;

[0033] Fourth step: attenuation wheel disc drive rudder 7 is fixed on the rudder support 8 through screw;

[0034] Fifth step: adjustable diaphragm 1, attenuation wheel disc 2 that assembles are fixed on the bottom plate 6 through screw;

[0035] Sixth step: adjustable diaphragm 1 and the installation attenuation piece of three attenuation wheel discs 2 are adjusted the light attenuation station position front and back corresponding, make the light transmission hole front and back no shelter;

[0036] Seventh department: the laser energy meter 4 is fixed on the laser energy meter support 5, is fixed on the bottom plate 6 through screw, ensures that the laser energy meter meter receives target surface and light transmission hole height is consistent.

[0037] The utility model discloses a compact, high-precision, electric control regulation's laser energy attenuation test system, through attenuation wheel disc 2 and the combination design of the configuration different attenuation piece, has realized the cascade attenuation of arbitrary attenuation coefficient;The combination design of drive rudder 7 and rudder support 8 has realized electric control attenuation wheel disc 2 station position, and the adjustment precision is high, and stable and reliable;Through the structural design of optimization rudder support 8, has realized the compactness of whole system, miniaturization;The overall device is after first commissioning and is finished and need not subsequent adjustment, and maintenance is convenient;With wide temperature adaptability.

[0038] The material, type, shape, size and dB value of the attenuation wheel disc 2 in the utility model can be adjusted according to actual use; the installation station shape, size and number of the attenuation piece can be adjusted according to actual use; the type, precision and size of the laser energy meter 4 can be adjusted according to actual use; the device can be used independently or placed in a light source.

[0039] The attenuation measurement system uses the absorption type attenuation piece type light attenuator, the attenuation piece group with absorption performance is fixed in the collimated light path, and the attenuation piece combination is adjusted, so that the purpose of different energy attenuation multiples is achieved.

[0040] Compared with other methods, the absorption type attenuation piece method is easier to operate, simple in structure and capable of achieving wide range attenuation. The absorption type attenuation piece type attenuator fixes the attenuation piece in the collimated light path through mechanical equipment, when the laser beam passes through the attenuation piece, the light energy is absorbed and attenuated, and when passing through the attenuation piece with different transmittance, different levels of energy attenuation can be achieved. The common materials for making the attenuation piece include infrared colored optical glass, crystal, optical film, optical filter and other inorganic and organic materials.

[0041] The variable diaphragm is placed in the test light path, the influence of the test spot size on the laser energy attenuation can be tested by adjusting the diaphragm size. The laser energy meter is used for testing the laser energy (power) value, and the attenuation effect can be observed in real time.

[0042] The above describes the utility model in detail through the embodiments, but the content is only the exemplary embodiment of the utility model, and cannot be considered as used for limiting the implementation range of the utility model. The protection scope of the utility model is limited by the claims. It should be noted that, in order to clearly describe, the description of the utility model omits the description of parts and processing which are not directly and obviously related to the protection scope of the utility model but known by the person skilled in the art.

[0043] It should be noted that, in the description of the utility model, the terms "upper", "lower", "left", "right", "inner", "outer" and the like indicate the direction or position relationship of the terms based on the direction or position relationship shown in the drawings, which is only for the convenience of description, and does not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation, therefore, it cannot be understood as a limitation of the utility model.

[0044] In addition, it needs to be explained that, in the description of the utility model, unless another explicit provision and limitation, the term "installation", "connection", "connect" should be broad sense understanding, for example, can be fixed connection, also can be detachable connection, or integrally connected; can be directly connected, also can be indirectly connected through the intermediate medium, can be two elements inside the communication. For the person skilled in the art, the above-mentioned term can be understood according to the specific meaning in the utility model.

Claims

1. A compact, high-precision laser energy attenuation testing system, characterized in that, The system includes a base, a drive servo mounted on the base via a servo bracket, an attenuation wheel mounted on the drive servo, the attenuation wheel having a through hole and several attenuation plates, a laser energy meter mounted on one side of the base via a laser energy meter bracket, and an adjustable aperture set in the receiving optical path of the laser energy meter. There are at least three attenuation wheels, and the attenuation factor of the laser passing through them is controlled by making the through holes or attenuation plates on different attenuation wheels coaxial. The laser emitted from the laser passes through the through hole of each attenuation wheel or any attenuation plate and is coaxial with the adjustable aperture.

2. The compact, high-precision laser energy attenuation testing system according to claim 1, characterized in that, The attenuation wheel has 5 attenuation plates.

3. The compact, high-precision laser energy attenuation testing system according to claim 1, characterized in that, The drive servo motor is connected to an electric servo drive mechanism and is used to control the rotation and tilt angle of the damping wheel.

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