Open Access

ARTICLE

Research and Application of Log Defect Detection and Visualization System Based on Dry Coupling Ultrasonic Method

Yongning Yuan¹, Dong Zhang², Usama Sayed³, Hao Zhu¹, Jun Wang⁴, Xiaojun Yang², Zheng Wang^2,*

1 College of Mechanical and Electronic Engineering, Nanjing Forestry University, Nanjing, 210037, China
2 College of Materials Science and Engineering, Nanjing Forestry University, Nanjing, 210037, China
3 College of Civil Engineering, Nanjing Forestry University, Nanjing, 210037, China
4 College of Information Science and Technology, Nanjing Forestry University, Nanjing, 210037, China
* Corresponding Author: Zheng Wang. Email: wangzheng63258@163.com

(This article belongs to the Special Issue: Bio-Composite Materials and Structures-2023)

Journal of Renewable Materials 2023, 11(11), 3917-3932. https://doi.org/10.32604/jrm.2023.028764

Received 06 January 2023; Accepted 11 May 2023; Issue published 31 October 2023

Abstract

In order to optimize the wood internal quality detection and evaluation system and improve the comprehensive utilization rate of wood, this paper invented a set of log internal defect detection and visualization system by using the ultrasonic dry coupling agent method. The detection and visualization analysis of internal log defects were realized through log specimen test. The main conclusions show that the accuracy, reliability and practicability of the system for detecting the internal defects of log specimens have been effectively verified. The system can make the edge of the detected image smooth by interpolation algorithm, and the edge detection algorithm can be used to detect and reflect the location of internal defects of logs accurately. The content mentioned above has good application value for meeting the requirement of increasing demand for wood resources and improving the automation level of wood nondestructive testing instruments.

---

Keywords

---