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          Industry applications

          Three-dimensional inspection case of automobile foam film

          Three-dimensional inspection of automotive foam film

          Hualang 3D engineers use the 3D photogrammetry system HL-3DP to detect the automotive foam film, compare and analyze the obtained 3D data with the original 3D data, and see the overall deviation between the actual workpiece and the CAD drawing, and clearly know the quality of the workpiece. The company can improve the workpiece in time, which greatly saves processing costs.

          Practical problems

          1. The length of the automobile foam film commissioned by a famous automobile equipment production company is up to 5 meters, the body size is huge, and the foam film has many curved surfaces, the structure is complex, and the measurement is difficult.

          2. Using the traditional measurement method, only part of the data of the automobile foam film can be obtained, and the surface and the portion with large slope cannot be measured, resulting in incomplete data acquisition, and the quality of the automobile foam film cannot be detected.

          Hualang solutions


          Automobile foam film

          The company needed to test automotive foam films, and the traditional manual measurement method was very inefficient and error-prone. Based on the actual situation of the company, Hualang engineers decided to use the 3D photogrammetry system HL-3DP. The HL-3DP is a handheld high-resolution (4288×2848) digital camera that takes digital photos of the object under test and superimposes the 2D digital photo images to obtain the 3D coordinates of the measured object. The mobile technology can effectively save measurement time for 3D coordinates, quality control and deformation analysis of the measured object. It is also possible to calculate the three-dimensional coordinate values of the code points and the marker points attached to the surface of the vehicle body, and automatically generate a high-precision three-dimensional coordinate system.


          3D photogrammetry photo scene



          3D photogrammetry photo scene

              Using the 3D photogrammetry system HL-3DP to shoot the automotive foam film, it takes only 30 minutes to obtain the 3D data of the automotive foam film, and the precision is 0.05mm. Quickly detect the difference between automotive foam film (CAD) models and products, and clearly understand the quality of automotive foam film, so that the company can improve the product in time.

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