Non-orthogonal shafting laser sensor for trans-scale three-dimensional measurement

Jiehu Kang; Bin Wu; Xiaodeng Duan; Zhen Zhang; Ting Xue

doi:10.1117/12.2543036

12 March 2020 Non-orthogonal shafting laser sensor for trans-scale three-dimensional measurement

Jiehu Kang, Bin Wu, Xiaodeng Duan, Zhen Zhang, Ting Xue

Proceedings Volume 11439, 2019 International Conference on Optical Instruments and Technology: Optoelectronic Measurement Technology and Systems; 114390M (2020) https://doi.org/10.1117/12.2543036
Event: 2019 International Conference on Optical Instruments and Technology, 2019, Beijing, China

Abstract

For the trans-scale three-dimensional (3D) measurement in regular-size space and industrial applications, there are many deficiencies and application limitations for traditional measurement methods. Reference to the three axes architecture of traditional instruments, a novel non-orthogonal shafting laser sensor is proposed. The novel sensor is mainly composed of two non-orthogonal shafting laser sensing modules, and each module is made up of two one-dimensional rotary tables and one collimated laser. In the novel laser sensing module, the three axes represent a non-orthogonal shafting architecture, with no orthogonal and intersecting requirements. The manufacturing and application costs are greatly reduced. A high-accuracy calibration method based on coordinate measuring machine and image processing is introduced. An improved perspective projection transform model and attitude kinetic model described by quaternion are adopted to calculate the 3D coordinates of spatial points. The simulation and experimental results showed that a maximum error less than 0.1 mm was detected from 100 mm to 500 mm. It is proved that trans-scale 3D measurement is feasible with the proposed non-orthogonal shafting laser sensor.

Citation Download Citation

Jiehu Kang, Bin Wu, Xiaodeng Duan, Zhen Zhang, and Ting Xue "Non-orthogonal shafting laser sensor for trans-scale three-dimensional measurement", Proc. SPIE 11439, 2019 International Conference on Optical Instruments and Technology: Optoelectronic Measurement Technology and Systems, 114390M (12 March 2020); https://doi.org/10.1117/12.2543036

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KEYWORDS

3D image processing

Sensors

3D metrology

3D modeling

Calibration

Collimation

Image processing

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