Evaluation of sensibility and resolution of the control for magnetic protection of documents by the magneto-optic television system

Authors

  • P. V. Kozhukhar National Technical University of Ukraine, Kyiv Politechnic Institute, Kiev

DOI:

https://doi.org/10.20535/RADAP.2013.53.126-135

Keywords:

sensibility, resolution, SNR, magneto-optical transducer, television system

Abstract

Introduction. The objective evaluation of magneto-optical television system technical characteristics was needed in the development. Novelty of the system prevents the use of standard techniques for this. The task of this work is to offer adequate methodology and to evaluate the sensitivity and resolution of magneto-optical television system.

Method of sensibility evaluation. The concept of magneto-optical television system sensitivity was made by the analysis of regulatory and scientific-technical sources. It is determined by the minimum size of the control object type "print bar" image visualization which has sufficient SNR. The method and the estimation of the magneto-optical television system sensitivity for magnetic protection of documents control were done. It is based on the quantitative evaluation of the image signal and noise in magneto-optical visualization of the spatial magnetic fields distribution in control object plane.

Method of resolution evaluation. The notion of magneto-optical television system resolution was formalized. The method and the estimation of its resolution were done.

Conclusions. According to the results of the pilot research the sensitivity of magneto-optical television system allows confidently to visualize bar of magnetic paint a width exceeding 21 mm, its resolution allows to distinguish the strokes of a thickness exceeding 42 mm.

Author Biography

P. V. Kozhukhar, National Technical University of Ukraine, Kyiv Politechnic Institute, Kiev

postgraduate student

References

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Published

2013-06-10

How to Cite

Кожухар, П. (2013) “Evaluation of sensibility and resolution of the control for magnetic protection of documents by the magneto-optic television system”, Visnyk NTUU KPI Seriia - Radiotekhnika Radioaparatobuduvannia, 0(53), pp. 126-135. doi: 10.20535/RADAP.2013.53.126-135.

Issue

No. 53 (2013)

Section

Information Security

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