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Measurement Techniques
Published in: Measurement Techniques 3/2012

01-06-2012 | Optophysical Measurements

Calibration of working measures for natural measurements of the effective scattering area of objects in the optical wavelength range

Authors: V. D. Popelo, I. R. Fakhurtdinov

Published in: Measurement Techniques | Issue 3/2012

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Abstract

A method of calibrating tunable light reflectors, used as working measures in measurements of the opticalradar characteristics of objects under natural conditions, is proposed, a feature of which is a comparison of the effective scattering areas of standard and working measures over short routes, for which the far-zone condition is not satisfied. An analysis of the systematic errors of the method is presented and recommendations for reducing them are developed.
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Footnotes
1
Existing procedures for comparing the ESA of different types of reflectors in the optical band over routes of limited length rest on the idea of the method of physical modeling and require fairly complex measuring equipment [3, 4]. They are used for the upper sections of a checking system in specialized laboratories, thereby solving the problem of providing a metrological backup for optical-radar measurements.
 
2
The situation for which signR ∞ ≠ signR st∞ corresponds to an obvious blunder when calibrating the working measure and is not considered further.
 
Literature
1.
V. D. Popelo and I. R. Fakhurtdinov, “An infologic model of objects and processes of measurement of the noticeability characteristics in a laser-radar experiment,” Metrologiya, No. 1, 18–25 (2011).
2.
A. S. Sakyan, N. V. Sidorovskii, and A. N. Starchenko, “The use of the comparison method in natural investigations of the optical characteristics of objects,” Opt. Zh., 77, No. 3, 39–43 (2010).
3.
V. D. Popelo and I. R. Fakhurtdinov, “A method of comparing the ESA of mirror reflectors in a parallel beam of probing radiation,” Izmer. Tekhn., No. 5, 39–42 (2010); Measur. Techn., 53, No. 5, 518–524 (2010).
4.
V. D. Popelo and I. R. Fakhurtdinov, “A method of comparing the ESA of small objects with coherent reflection characteristics in a converging beam of laser radiation,” Metrologiya, No. 5, 29–40 (2011).
5.
V. D. Popelo and I. R. Fakhurtdinov, “Systematic errors when measuring the reflection characteristics of small objects with coherent reflection characteristics,” Izmer. Tekhn., No. 9, 21–24 (2010); Measur. Techn., 53, No. 9, 980–984 (2010).
6.
D. D. Maksutov, Aberration-Free Reflection Surfaces and Systems and New Methods of Testing Them [in Russian], Gos. Tekh.-Teor. Izd., Moscow–Leningrad (1932).
7.
Yu. A. Kravtsov and Yu. I. Orlov, Geometrical Optics of Inhomogeneous Media [in Russian], Nauka, Moscow (1980).
8.
M. S. Belenkii et al., The Coherence of Laser Radiation in the Atmosphere [in Russian], Nauka, Novosibirsk (1985).
Metadata
Title
Calibration of working measures for natural measurements of the effective scattering area of objects in the optical wavelength range
Authors
V. D. Popelo
I. R. Fakhurtdinov
Publication date
01-06-2012
Publisher
Springer US
Published in
Measurement Techniques / Issue 3/2012
Print ISSN: 0543-1972
Electronic ISSN: 1573-8906
DOI
https://doi.org/10.1007/s11018-012-9949-3

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