A novel 3D laser scanning defect detection and measurement approach for automated fibre placement

Tang, Yipeng; Wang, Qing; Wang, Han; Li, Jiangxiong; Ke, Yinglin

doi:10.1088/1361-6501/abda95

Cited by 19 publications

(6 citation statements)

References 28 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In other words, the part with the most significant change in surface curvature and surface normal vector is selected. The bending parameters of each scanned part are shown in table 4. Figure 20 is a close-up of the scan result, which is the wrinkle of the bent tube, a manifestation of bending defects.…”

Section: Verification Using Bent Tubesmentioning

confidence: 99%

“…Due to its advantages of high accuracy, non-contact, and low cost, 3D scanning technology [1] has a wide range of applications in reverse engineering [2], quality control [3], product development [4], and other fields [5,6]. It also has become a vital shape and position perception method for intelligent * Authors to whom any correspondence should be addressed.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Extrinsic calibration method for 3D scanning system with four coplanar laser profilers

Zou¹,

Xia²,

Zhao³

et al. 2022

Meas. Sci. Technol.

View full text Add to dashboard Cite

3D scanning is a crucial step to ensure the machining quality of the workpiece and is an essential part of intelligent manufacturing. However, existing scanning systems usually have only one profiler, which must be combined with a dynamic tracking system to achieve a complete scan of a workpiece. This scanning method has low efficiency and complicated path planning for ring-shaped workpieces. Therefore, in this article, an efficient and high-accuracy 3D scanning system is built, which is composed of a linear translation stage and four uniformly distributed laser profilers, and its extrinsic calibration method is studied. At first, based on the working parameters and spatial layout of multiple profilers, a stereoscopic calibrator composed of three non-collinear target balls (TBs) is designed. Then, a multi-profiler data fusion method is proposed, which utilizes a linear encoder to trigger the four profilers synchronously. Finally, by simultaneously using all data from the multiple profilers and the spherical constraint of each TB, all extrinsic parameters are accurately calibrated at the same time. Experimental results show that the average probing size error of the TB with a 38.1mm diameter is stable at about 0.007mm, and its extended uncertainty is about 0.100mm (k=2). In addition, standard cylinders and bend tubes are scanned, the results show that the proposed method can meet the high-accuracy calibration requirements of the tube bending deformation detection system.

show abstract

Section: Verification Using Bent Tubesmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Extrinsic calibration method for 3D scanning system with four coplanar laser profilers

Zou¹,

Xia²,

Zhao³

et al. 2022

Meas. Sci. Technol.

View full text Add to dashboard Cite

show abstract

“…Currently, the detection and analysis of inner cavity structures in industrial parts is achieved through the use of PET and γ-photon techniques [11][12][13]. To address the detection challenge mentioned earlier, Jiantang et al [14] developed a non-destructive testing tool based on the positron annihilation principle and the γ-photon detection mechanism to analyze the internal structure and locate defects in complex industrial parts.…”

Section: Introductionmentioning

confidence: 99%

Manufacturing errors detection and visualization system for parts with complex internal cavity structural through industrial CT image

Long,

Si,

Jiang

et al. 2024

Meas. Sci. Technol.

View full text Add to dashboard Cite

To address the challenge of detection and visualization manufacturing errors in part with complex internal cavity structures, this paper present a method based on industrial computed tomography (CT) imaging. First, a two-dimensional (2D) CT sequence slice images is obtained using industrial CT scanning, which is then reconstructed into a three-dimensional (3D) measurement model. The measurement model is registered with the original design model, and the surface information of the part is obtained by segmenting the surfaces. The error between reference surface of original design model and test surface of measurement model is calculated. By comparing the error value with the tolerance, the detection result is obtained and analysed. The developed software system enables areas that do not meet the tolerance requirements to be visualized. This method can detect manufacturing errors for part with complex internal cavity structures, such as planeness error, cylindricity error, verticality error, and parallelism error. This method provides a basis for assessing the manufacturing and processing quality of part with complex internal cavity structures.

show abstract

“…As a kind of non-contact measurement, line laser scanning has the advantages of high precision, strong antiinterference ability, fast speed and so on. It has been widely used in pipeline production detection [1,2], threedimensional surface reconstruction [3][4][5], defect detection [6][7][8], and topographic exploration [9,10].…”

Section: Introductionmentioning

confidence: 99%

An affine transform center line extraction and discontinuity deviation correction method for non-orthogonal grid laser

Wang,

Ma,

Zhang

et al. 2023

Phys. Scr.

View full text Add to dashboard Cite

The extraction of the laser center line is one of the key steps of laser scanning, which is related to the accuracy of the coordinate calculation. Non - orthogonal grid laser scanning has the advantages of a large measuring range and small translation error. For the extraction of the center line of the laser cross region of non-orthogonal grid, the discontinuity and deviation of the results obtained by the existing methods will cause the error of center line coordinate extraction. To solve these problems, according to the properties of image affine, an improved method of laser center extraction for non-orthogonal grid is proposed in this paper. Firstly, the image is cut into sub-images for affine transformation to become orthogonal grid laser images. Secondly, to solve the discontinuity problem of the center line, the orthogonal grid laser image was rotated 90° from the original image, and the Steger method was used for processing. Inverse affine transformation is performed on the results. Finally, the sub-image is cut according to the slope, and then the center line is obtained by concatenation and union. By comparing various methods and 3D reconstruction experiments, the accuracy of the proposed method is verified in the center line extraction of grid laser cross-region.

show abstract

A novel 3D laser scanning defect detection and measurement approach for automated fibre placement

Cited by 19 publications

References 28 publications

Extrinsic calibration method for 3D scanning system with four coplanar laser profilers

Extrinsic calibration method for 3D scanning system with four coplanar laser profilers

Manufacturing errors detection and visualization system for parts with complex internal cavity structural through industrial CT image

An affine transform center line extraction and discontinuity deviation correction method for non-orthogonal grid laser

Contact Info

Product

Resources

About