Nondestructive monitoring of aircraft composites using terahertz radiation
Paper i proceeding, 2014

In this paper we consider using the terahertz (THz) time domain spectroscopy (TDS) for non destructive testing and determining the chemical composition of the vanes and rotor-blade spars. A versatile terahertz spectrometer for reflection and transmission has been used for experiments. We consider the features of measured terahertz signal in temporal and spectral domains during propagation through and reflecting from various defects in investigated objects, such as voids and foliation. We discuss requirements are applicable to the setup and are necessary to produce an image of these defects, such as signal-to-noise ratio and a method for registration THz radiation. Obtained results indicated the prospects of the THz TDS method for the inspection of defects and determination of the particularities of chemical composition of aircraft parts.

Terahertz radiation

terahertz spectroscopy

nondestructive testing

terahertz imaging



N.S. Balbekin

ITMO University

Evgenii Novoselov

Chalmers, Mikroteknologi och nanovetenskap, Terahertz- och millimetervågsteknik

P.V. Pavlov

Military Aviation Engineering University

V.G. Bespalov

ITMO University

N.V. Petrov

ITMO University

Progress in Biomedical Optics and Imaging - Proceedings of SPIE

16057422 (ISSN)

Vol. 9448 94482D- 94482D
9781628415643 (ISBN)


Informations- och kommunikationsteknik


Elektroteknik och elektronik





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