Author:
Miao Zhifei,Wu Dan,Gao Yuan,Wang Yifan
Abstract
In this paper, an improved long-pulse excitation infrared nondestructive testing method is proposed, and a homogeneous pulse thermography (HPT) system is built. Based on the proposed new pulse excitation system, the problem of uneven heating in pulsed infrared non-destructive testing (NDT) has been effectively improved, and the signal-to-noise ratio of thermal images has been improved. Finally, the results of the experimental analysis and discussion show that the improved pulsed infrared NDT system greatly improves the defect detection rate and the reliability of the quantitative analysis of defect depth compared with the traditional pulsed detection system.
Funder
National Natural Science Foundation of China
Science and Technology Innovation 2025 Major Project of Ningbo City
K. C. Wong Magna Fund in Ningbo University
Subject
Atomic and Molecular Physics, and Optics