一种基于激光丁达尔效应的水槽水下地形测量方法
By using the laser Tyndall effect to generate light beams in the water to map underwater topography, the accuracy and continuity problems caused by the need for drainage in existing technologies are solved, and efficient and undisturbed underwater topography measurement is achieved.
CN118794414BActive Publication Date: 2026-07-17TONGJI UNIV
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- TONGJI UNIV
- Filing Date
- 2024-06-28
- Publication Date
- 2026-07-17
AI Technical Summary
Technical Problem
Existing underwater topographic measurement methods in water tanks require drainage before measurement, which affects accuracy and continuity, and the instruments' contact with the underwater topography causes disturbance and damage.
Method used
The laser Tyndall effect is used to generate a laser beam in the water. Images of different cross-sectional locations of the model sand are acquired through a movable frame and imaging equipment, avoiding contact with underwater topography, improving measurement accuracy and preventing damage.
Benefits of technology
It enables high-precision underwater topographic surveying without the need for drainage, avoiding instrument disturbance and damage, and improving measurement efficiency and cost-effectiveness.
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Figure CN118794414B_ABST
Abstract
本发明涉及一种基于激光丁达尔效应的水槽水下地形测量方法，方法包括以下步骤：S1、建立水槽水下地形测量模型；S2、进行标定；S3、关闭激光笔并移动可移动框架的位置，待水面平稳，重新打开激光笔，映射出由丁达尔效应产生模型沙不同位置的激光光柱，获取模型沙不同位置的激光光柱图像；S4、提取模型沙不同位置的激光光柱图像中的实际激光光柱长度，得到实际剖面高程。与现有技术相比，本发明具有提高水下地形测量的精度等优点。
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