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用于槽和孔侧面表面距离测量的商用激光三角测量传感器的简单改进

Simple Modification of a Commercial Laser Triangulation Sensor for Distance Measurement of Slot and Bore Side Surfaces.

作者信息

Hošek Jan, Linduška Petr

机构信息

Faculty of Mechanical Engineering, Czech Technical University in Prague, Technická 4, 166 07 Praha, Czech Republic.

Czech Metrology Institute, Okružní 31, 638 00 Brno, Czech Republic.

出版信息

Sensors (Basel). 2021 Oct 18;21(20):6911. doi: 10.3390/s21206911.

DOI:10.3390/s21206911
PMID:34696124
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC8538226/
Abstract

The aim of the research is to analyze the possibility of the development and realization of a common laser triangulation sensor arrangement-based probe for the measurement of slots and bore sides with the help of a mirror attachment. The analysis shows the feasibility and limits of the solution with respect to the maximum measurement depth and surface distance measurement working range. We propose two possible solutions: one for maximizing the ratio of the measurement depth to the measured bore size and the second for maximizing the total depth, intended for the measurement of slots and large bore sizes. We analyzed measurement error sources. We found that the errors related to the reflection mirror misalignment can be fully compensated. We proved the validity of the proposed solution with the realization of a commercial laser triangulation sensor-based probe and demonstrated a slot side and a bore side surface distance scanning measurement. The probe working range was assessed with regard to the obscuration effect of optical beams.

摘要

本研究的目的是分析借助镜面附件开发并实现一种基于通用激光三角测量传感器装置的探头，用于测量槽和孔壁的可能性。分析表明了该解决方案在最大测量深度和表面距离测量工作范围方面的可行性和局限性。我们提出了两种可能的解决方案：一种是使测量深度与被测孔径的比值最大化，另一种是使总深度最大化，旨在测量槽和大孔径。我们分析了测量误差源。我们发现与反射镜未对准相关的误差可以得到完全补偿。通过实现基于商用激光三角测量传感器的探头，我们证明了所提解决方案的有效性，并展示了槽壁和孔壁表面距离的扫描测量。针对光束的遮挡效应评估了探头的工作范围。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/9a48/8538226/5f9d81915ac3/sensors-21-06911-g016.jpg
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