학술논문
High-Spatial-Resolution Scanning LIDAR: Towards Accurate Inspection of Tunnel Inner Wall / 高空間分解スキャニングライダー：トンネル内壁面の精密調査に向けて
Document Type
Journal Article
Author
Source
レーザー研究 / The Review of Laser Engineering. 2017, 45(7):403
Subject
Language
Japanese
ISSN
0387-0200
1349-6603
1349-6603
Abstract
This article introduces a remote laser inspection system that detects cracks on the concrete wall of tunnels. The system consists of three features: distance measurement using an interferometer equipped with a frequency-shifted feedback (FSF) laser, high-speed and high-resolution imaging using a reflected light imaging system, and spectroscopic imaging using triple lasers with different wavelengths. The features have potential to replace conventional manual-based inspection tasks.