Laser scanning vibration measurement equipment

Abstract

The utility model discloses laser scanning vibration measurement equipment, which comprises a placement part and a vibration measurement part, the adjusting part is arranged on the placement part and is used for adjusting the laser emission angle; the camera is arranged on the placement part and is used for identifying a target surface; the distance measuring sensor is arranged on the placement part and is used for identifying the distance between the distance measuring sensor and the target surface; and the laser vibration measurement sensor is arranged in the placement part and is used for generating laser and acting on the target surface through the adjusting part to detect vibration data of the target surface. According to the utility model, a user can arrange the placement part on the front side of the target surface to be measured, identify the surface information and the relative distance of the target surface to be measured through the camera and the distance measuring sensor, and preset the point position to be measured according to the setting of the user, and then the adjusting part adjusts the angle of laser emitted by the laser vibration measuring sensor. According to the invention, the equipment is integrated, so that the equipment is convenient to transfer, set and use, the convenience of the equipment is greatly improved, and the application scene of the equipment is improved.

Description

Technical Field

[0001] This utility model relates to the field of laser vibration measurement equipment technology, and in particular to a laser scanning vibration measurement device. Background Technology

[0002] Point laser testing of structural vibration works by shining a laser beam onto the surface of the structure under test. When the surface of the structure vibrates, there will be a certain Doppler effect, which will cause the reflected laser to change in phase and frequency. By analyzing these changes, the vibration of the surface of the structure under test can be calculated.

[0003] Existing laser testing technologies can acquire high-precision vibrations at a single point, but they cannot track and scan moving mechanisms. They cannot effectively detect vibration changes and deformations caused by motion stress during operation. Furthermore, existing laser testing equipment has limited functionality, is bulky, inconvenient to carry, and cannot be adapted to testing in multiple scenarios, leaving room for improvement. Utility Model Content

[0004] The purpose of this invention is to address the aforementioned shortcomings by providing a laser scanning vibration measurement device.

[0005] To solve the above-mentioned technical problems, this utility model adopts the following technical solution: a laser scanning vibration measuring device, comprising:

[0006] Resettlement Department;

[0007] An adjustment section, located on the mounting section, is used to adjust the laser emission angle;

[0008] A camera, mounted on the mounting section, is used to identify the target surface;

[0009] A distance sensor, mounted on the mounting section, is used to identify the distance between the sensor and the target surface.

[0010] A laser vibration sensor is installed in the mounting section to generate a laser and apply it to the target surface through the adjustment section to detect the vibration data of the target surface.

[0011] Furthermore, the installation unit is equipped with a control unit and a power supply, and a control panel is also installed on the installation unit.

[0012] Furthermore, the control unit is electrically connected to the control panel, adjustment unit, camera, distance sensor, laser vibration sensor and power supply.

[0013] Furthermore, a mounting bracket is provided on the mounting section;

[0014] The mounting bracket is used to support the camera and the ranging sensor so that the adjustment unit, camera and ranging sensor are in the same plane.

[0015] Furthermore, the mounting part is provided with a mounting cavity, and the laser vibration sensor and power supply are located inside the mounting cavity;

[0016] The output end of the laser vibration sensor extends into the adjustment section.

[0017] Furthermore, the adjustment unit is provided with at least one set of polarizing lenses, which are used to refract the monitoring laser of the laser vibration sensor onto the target surface to be measured.

[0018] Furthermore, the adjustment unit is also equipped with a driving unit, which is used to adjust the angle of the polarizing lens in order to control the laser emission angle.

[0019] The beneficial effects of this utility model are reflected in:

[0020] In this invention, the user can place the mounting part on the front of the target surface to be measured, and identify the surface information and relative distance of the target surface through a camera and a distance sensor. The user can also preset the test points according to the settings. Then, the adjustment part adjusts the laser angle emitted by the laser vibration sensor to measure the vibration of each test point. This application integrates the equipment into one unit, which facilitates the transportation, setup and use of the equipment, greatly improving the convenience of the equipment and expanding the application scenarios of the equipment. Attached Figure Description

[0021] Figure 1 This is a perspective view of the present invention;

[0022] Figure 2 This is a cross-sectional view of the structure of this utility model;

[0023] Figure 3 This is a schematic diagram of the structure of Embodiment 1 of the present utility model;

[0024] Figure 4 This is a schematic diagram of the structure of Embodiment 2 of this utility model.

[0025] In the picture:

[0026] 1. Installation unit; 11. Control panel; 12. Installation bracket;

[0027] 2. Adjustment unit; 21. Polarizing lens;

[0028] 3. Camera;

[0029] 4. Distance sensor;

[0030] 5. Laser vibration sensor;

[0031] 6. Power supply. Detailed Implementation

[0032] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only a part of the embodiments of the present utility model, and not all of them. Unless otherwise specified, the embodiments and features in the embodiments of this application can be combined with each other. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present utility model.

[0033] Please see Figure 1-4 This utility model discloses a laser scanning vibration measurement device, comprising:

[0034] Resettlement Department 1;

[0035] Adjustment unit 2, provided on mounting unit 1, is used to adjust the laser emission angle;

[0036] Camera 3 is mounted on the mounting unit 1 and is used to identify the target surface;

[0037] The ranging sensor 4 is mounted on the mounting part 1 and is used to identify the distance between the sensor and the target surface.

[0038] The laser vibration sensor 5 is installed in the mounting part 1 to generate a laser and act on the target surface through the adjustment part 2 to detect the vibration data of the target surface.

[0039] When using this application, the laser angle emitted by the laser vibration sensor 5 can be adjusted by the adjustment unit 2. In specific implementation, the user can place the placement unit 1 on the front of the target surface to be measured, and identify the surface information and relative distance of the target surface to be measured by the camera 3 and the distance sensor 4, and preset the test points according to the user settings. Then the adjustment unit 2 adjusts the laser angle emitted by the laser vibration sensor 5 to measure the vibration of each test point.

[0040] It should be noted that the installation part 1 is equipped with a control unit and a power supply 6, and the installation part 1 is also equipped with a control panel 11. The control unit, the power supply 6 and related electrical components are all common technical means in the prior art, so they are not described in detail.

[0041] In this application, the control unit is electrically connected to the control panel 11, the adjustment unit 2, the camera 3, the distance sensor 4, the laser vibration sensor 5, and the power supply 6.

[0042] In this application, the placement part 1 is provided with a placement bracket 12;

[0043] The mounting bracket 12 is used to support the camera 3 and the distance sensor 4, so that the adjustment unit 2, the camera 3 and the distance sensor 4 are in the same plane. With the above structure, when the device is in use, the situation that the adjustment unit 2, the camera 3 and the distance sensor 4 are not in the same plane can be avoided, which would cause measurement errors.

[0044] In this application, the mounting part 1 is provided with a mounting cavity, and the laser vibration sensor 5 and the power supply 6 are disposed in the mounting cavity;

[0045] The output end of the laser vibration sensor 5 extends into the adjustment section 2.

[0046] Furthermore, the adjustment unit 2 is provided with at least one set of polarizing lenses 21, which are used to refract the monitoring laser of the laser vibration sensor 5 onto the target surface to be measured.

[0047] Furthermore, the adjustment unit 2 is also provided with a driving unit, which is used to adjust the angle of the polarizing lens 21 to control the laser emission angle. It should be noted that the adjustment unit 2 is a relatively mature technology in the prior art, so its setting position and driving unit are not described in detail in this application. This mechanism can also be replaced by other structures with equivalent effects that are easy for those skilled in the art to conceive of.

[0048] In a preferred embodiment, such as Figure 3 As shown, in use, the mounting part 1 can be placed on the front of the target surface to be measured, and the surface information and relative distance of the target surface to be measured can be identified by the camera 3 and the distance sensor 4. The test points are preset according to the user settings, and then the adjustment part 2 adjusts the laser angle emitted by the laser vibration sensor 5 to measure the vibration of each test point. In actual operation, it can be used for power equipment inspection, equipment abnormal noise detection, fault location, structural vibration transmission path analysis, material sound absorption and insulation test, sound leakage test, equipment sealing test, pipeline leakage location, semiconductor test, production line factory test, ultrasonic test, etc.

[0049] In another embodiment, such as Figure 4 As shown, this application can be used for testing rotating structures such as propellers and wind turbine blades, as well as bearing rotor systems. It should be added that, in this embodiment, an encoder should also be included to obtain the rotational speed of the moving mechanism under test. The encoder is used to feed back the real-time rotation angle of the moving mechanism under test and to provide the control data to the adjustment unit 2 to adjust the laser angle emitted by the laser vibration sensor 5 so that the measuring point of the laser vibration sensor 5 is always at the fixed point of the moving mechanism, thereby achieving the purpose of accurate detection.

[0050] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicators will also change accordingly.

[0051] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of indicated technical features. Therefore, features defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. If the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0052] Additionally, "multiple" refers to two or more.

[0053] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A laser scanning vibration measurement device, characterized in that, include: Resettlement Department (1); An adjustment unit (2) is provided on the mounting unit (1) for adjusting the laser emission angle; A camera (3) is mounted on the mounting section (1) to identify the target surface; A distance sensor (4) is mounted on the mounting part (1) to identify the distance between the sensor and the target surface; A laser vibration sensor (5) is installed in the mounting part (1) to generate a laser and act on the target surface through the adjustment part (2) to detect the vibration data of the target surface.

2. The laser scanning vibration measuring device according to claim 1, characterized in that: The installation unit (1) is equipped with a control unit and a power supply (6), and the installation unit (1) is also equipped with a control panel (11).

3. The laser scanning vibration measuring device according to claim 2, characterized in that: The control unit is electrically connected to the control panel (11), the adjustment unit (2), the camera (3), the distance sensor (4), the laser vibration sensor (5), and the power supply (6).

4. The laser scanning vibration measuring device according to claim 1, characterized in that: The mounting part (1) is provided with a mounting bracket (12); The mounting bracket (12) is used to support the camera (3) and the distance sensor (4) so ​​that the adjustment unit (2), the camera (3) and the distance sensor (4) are in the same plane.

5. The laser scanning vibration measuring device according to claim 2, characterized in that: The mounting part (1) is provided with a mounting cavity, and the laser vibration sensor (5) and the power supply (6) are located inside the mounting cavity; The output end of the laser vibration sensor (5) extends into the adjustment section (2).

6. The laser scanning vibration measuring device according to claim 1, characterized in that: The adjustment unit (2) is provided with at least one set of polarizing lenses (21), which are used to refract the monitoring laser of the laser vibration sensor (5) onto the surface of the target to be measured.

7. The laser scanning vibration measuring device according to claim 6, characterized in that: The adjustment unit (2) is also provided with a driving unit, which is used to adjust the angle of the polarizing lens (21) to control the laser emission angle.

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