Measurement of free-form curved surfaces using laser triangulation

Z Dong, X Sun, W Liu, H Yang - Sensors, 2018 - mdpi.com
Laser triangulation (LT) is widely used in many fields due to its good stability, high resolution
and fast speed. However, the accuracy in these applications suffers from severe constraints …

High precision laser scanning of metallic surfaces

YM Amir, B Thörnberg - International Journal of Optics, 2017 - Wiley Online Library
Speckle noise, dynamic range of light intensity, and spurious reflections are major
challenges when laser scanners are used for 3D surface acquisition. In this work, a series of …

A fast and on-machine measuring system using the laser displacement sensor for the contour parameters of the drill pipe thread

Z Dong, X Sun, C Chen, M Sun - Sensors, 2018 - mdpi.com
The inconvenient loading and unloading of a long and heavy drill pipe gives rise to the
difficulty in measuring the contour parameters of its threads at both ends. To solve this …

An improved signal processing method for the laser displacement sensor in mechanical systems

Z Dong, X Sun, C Chen, H Yang, L Yang - Mechanical Systems and Signal …, 2019 - Elsevier
In recent years, the laser displacement sensor (LDS) has been widely applied to a multitude
of fields such as precision measurement and reverse engineering. However, the accuracy of …

[PDF][PDF] 基于激光三角位移传感器的双头螺杆在机测量系统

孙梦楠, 董祉序, 徐威, 刘明轩, 孙兴伟 - 中国激光, 2023 - researching.cn
摘要针对双头螺杆廓形参数难以实现高精度, 高效率检测的问题, 以四轴旋风铣床为载体,
设计并实现了一种基于激光三角位移传感器(LTDS) 的在机测量系统. 为了提高系统的测量精度 …

Low-power laser image enhancement via deep feature recovery for HDR 3D measurement

X Niu, F Li, C Zuo, Q Zhang, Y Wang - Optics Express, 2024 - opg.optica.org
Laser 3D measurement has gained widespread applications in industrial metrology. Still, it
is usually limited by surfaces with high dynamic range (HDR) or the colorful surface texture …

A laser-based on-machine measuring system for profile accuracy of double-headed screw rotor

Z Dong, F Xu, X Sun, W Liu - Sensors, 2019 - mdpi.com
Great length, large weight and other factors may cause difficulty in measuring the profile
accuracy of the double-headed screw rotor. To solve this problem, an on-machine …

[PDF][PDF] 宽厚板板形测量系统与标定方法研究

李子良, 王涛, 张金柱, 师玮, 白建鑫, 黄庆学 - 机械工程学报, 2022 - qikan.cmes.org
针对当前宽厚板板形在线智能化检测的需求, 设计一种单激光器多相机的宽厚板板形测量系统,
提出一种基于唯一激光平面的多相机坐标系姿态校准标定方法. 板形测量系统由分别位于宽厚板 …

基于事件信息与深度学习的高动态范围三维重建.

王杰, 魏振东, 王启江, 张启灿… - … /Shu Ju Cai Ji Yu Chu Li, 2024 - search.ebscohost.com
采用光学三维成像技术测量金属零件, 黑色物体以及半透明物体等高动态范围(High dynamic
range, HDR) 表面的三维轮廓是一个极具挑战性的问题. 目前, 传统方法对存在较低反射以及半 …

Approach for designing and developing high-precision integrative systems for strip flatness detection

Q Ouyang, C Wen, Y Song, X Dong, X Zhang - Applied Optics, 2015 - opg.optica.org
In this paper, we propose an approach for designing and developing high-precision
integrative systems for strip flatness detection. Algorithms are developed for camera …