用于工业应用的高速、低成本线场光谱域光学相干断层成像技术

IF 3.5 2区工程技术 Q2 OPTICS Optics and Lasers in Engineering Pub Date : 2024-10-09 DOI:10.1016/j.optlaseng.2024.108631

Xingyu Yang , Zijian Zhang , Xinhua Li , Hungyen Lin , Samuel Lawman , Stoyan Stoyanov , Timothy Tilford , Yihua Hu , Yaochun Shen , Yalin Zheng

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引用次数: 0

摘要

光学相干断层扫描（OCT）系统的应用已在临床环境中得到广泛探索，并在其他领域引起了越来越多的兴趣。在工业应用中，速度和成本等因素往往优先于高分辨率和能效。现代 OCT 系统的运行速度通常在 20k-70k A-scan/s 之间，价格至少在 5 万美元以上。我们报告了一种线场 OCT 系统，通过在 8 位模式下运行二维相机，成像速度高达 430k A-scan/s，成本仅为 3.2 千美元。报告中的 OCT 系统在空气中的轴向分辨率为 9 µm，最大轴向信噪比和灵敏度分别达到 68.8 dB 和 88.8 dB。我们通过测量、观察和分割印刷电路板、药片和豌豆种子样品，展示了该系统的实际应用。

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High-speed low-cost line-field spectral-domain optical coherence tomography for industrial applications

The applications of Optical Coherence Tomography (OCT) systems have been extensively explored in clinical settings and have attracted growing interest in other fields. Factors such as speed and cost are often prioritized over high resolution and power efficiency in industrial applications. Modern OCT systems typically operate at speeds between 20k-70k A-scans/s and are priced at least $50k. We report a line-field OCT with a high imaging speed of 430k A-scans/s, by operating a 2D camera in 8-bit mode, at a cost of $3.2k. The reported OCT system provides an axial resolution of 9 µm in air and achieves a maximum on-axis signal-to-noise ratio and sensitivity of 68.8 dB and 88.8 dB, respectively. We demonstrate the practical use of the system by measuring, visualizing, and segmenting samples of Printed Circuit Boards, pharmaceutical tablets, and pea seeds.

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来源期刊

Optics and Lasers in Engineering 工程技术-光学

CiteScore

8.90

自引率

8.70%

发文量

384

审稿时长

42 days

期刊介绍： Optics and Lasers in Engineering aims at providing an international forum for the interchange of information on the development of optical techniques and laser technology in engineering. Emphasis is placed on contributions targeted at the practical use of methods and devices, the development and enhancement of solutions and new theoretical concepts for experimental methods. Optics and Lasers in Engineering reflects the main areas in which optical methods are being used and developed for an engineering environment. Manuscripts should offer clear evidence of novelty and significance. Papers focusing on parameter optimization or computational issues are not suitable. Similarly, papers focussed on an application rather than the optical method fall outside the journal''s scope. The scope of the journal is defined to include the following: -Optical Metrology- Optical Methods for 3D visualization and virtual engineering- Optical Techniques for Microsystems- Imaging, Microscopy and Adaptive Optics- Computational Imaging- Laser methods in manufacturing- Integrated optical and photonic sensors- Optics and Photonics in Life Science- Hyperspectral and spectroscopic methods- Infrared and Terahertz techniques