학술논문

Terahertz Nondestructive Testing of Honeycomb Composites Based on FMCW Technology
Document Type
Conference
Source
2022 15th UK-Europe-China Workshop on Millimetre-Waves and Terahertz Technologies (UCMMT) Millimetre-Waves and Terahertz Technologies (UCMMT), 2022 15th UK-Europe-China Workshop on. :1-3 Oct, 2022
Subject
Communication, Networking and Broadcast Technologies
Components, Circuits, Devices and Systems
Engineered Materials, Dielectrics and Plasmas
Fields, Waves and Electromagnetics
Photonics and Electrooptics
Terahertz wave imaging
Frequency modulation
Superresolution
Nondestructive testing
Morphology
Terahertz materials
Network analyzers
THz
FMCW
Non-destructive Testing
Honeycomb Composites
Language
ISSN
2639-4537
Abstract
Based on the frequency modulated continuous wave (FMCW) technology, a terahertz (THz) FMCW imaging system with a frequency modulation range from 0.26 THz to 0.4 THz was built based on vector network analyzer and two-dimensional scanning system. The imaging of honeycomb composites was realized. The imaging results show that this method can successfully detect the internal defects of honeycomb composites with a good resolution.