薄板振动形变测量装置

Abstract

本实用新型涉及振动测量装置技术领域，尤其涉及一种薄板振动形变测量装置，本实用新型提供的薄板振动形变测量装置，包括：固定架、振动发生机构、激光发射机构、观测屏和图像采集处理机构，振动发生机构具有可振动的支撑部，支撑部用于承载薄板；激光发射机构设置于固定架上，且位于振动发生机构的上方，用于向薄板表面投射点阵激光；观测屏设置于振动发生机构的一侧，用于接收点阵激光在薄板表面的反射光并形成光点轨迹图像；图像采集处理机构用于采集和分析观测屏上的光点轨迹图像，本实用新型提供的薄板振动形变测量装置可实现多点同步测量，提高测量效率和测量的准确性。

Claims

1. A sheet vibration deformation measuring device characterized by comprising: include: Fixture (1); A vibration generating mechanism (2) has a vibrating support (21) for supporting a thin plate; A laser emitting mechanism (3) is mounted on a fixed frame (1) and located above the vibration generating mechanism (2) for projecting a dot matrix laser onto the surface of the thin plate. An observation screen (4) is set on one side of the vibration generating mechanism (2) to receive the reflected light of the dot matrix laser on the surface of the thin plate and form a light spot trajectory image; Image acquisition and processing mechanism (5) is used to acquire and analyze the light spot trajectory image on the observation screen (4).

2. The sheet vibration deformation measuring device according to claim 1, wherein The laser emitting mechanism (3) includes a laser (31) and a diffractive optical element. The laser emitted by the laser (31) is converted into the dot matrix laser by the diffractive optical element.

3. The sheet vibration deformation measuring apparatus according to claim 2, wherein The laser emitting mechanism (3) further includes an optical guiding element (32), which is disposed in the optical path of the dot matrix laser and is used to guide the dot matrix laser to irradiate the surface of the thin plate and guide the reflected light to the observation screen (4).

4. The sheet vibration deformation measuring apparatus according to claim 3, wherein The optical guiding element (32) is a one-way mirror or a beam splitter. The optical guiding element (32) is tilted so that the propagation path of the dot matrix laser is separated from that of the reflected light.

5. The sheet vibration deformation measuring apparatus according to claim 2, wherein The laser emitting mechanism (3) further includes an adjustment component (33), which is disposed on the fixed frame (1). The movable end of the adjustment component (33) is connected to the laser (31) and is used to adjust the position and angle of the laser (31).

6. The sheet vibration deformation measuring apparatus according to claim 5, wherein The adjustment component (33) includes: The slide rail (331) is connected to the fixed frame (1); The lifting frame (332) is slidably mounted on the slide rail (331), and the lifting frame (332) has a height-adjustable mounting part (333); The laser (31) is rotatably connected to the mounting part (333).

7. The sheet vibration deformation measuring apparatus according to claim 1, wherein The vibration generating mechanism (2) includes a signal generator, a power amplifier and an electromagnetic vibrator. The signal generated by the signal generator is amplified by the power amplifier and drives the electromagnetic vibrator to work. The electromagnetic vibrator is provided with the support part (21).

8. The sheet vibration deformation measuring apparatus according to claim 1, wherein The observation screen (4) is fixedly mounted on the mounting frame (1).

9. The sheet vibration deformation measuring apparatus according to claim 1, wherein It also includes a guide rail (6) extending along the first direction X, one end of the guide rail (6) being connected to the fixed frame (1), and the observation screen (4) being slidably disposed on the guide rail (6).

10. The sheet vibration deformation measuring apparatus according to claim 1, wherein It also includes clamps for supporting the sheet in a fixed or free boundary manner.

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