Zobrazeno 1 - 10
of 11
pro vyhledávání: '"Yuri E. Pol'ski"'
Publikováno v:
SPIE Proceedings.
Tutorial and training course «Optical Two-Frequency Domain Reflectometry» are devoted to the theory and technical equipment of reflectometers for fiber optical structures monitoring in two- frequency domain. Optical two-frequency probing radiation
Autor:
German L. Il'in, Renat G. Zalyalov, Zaituna K. Petukhova, Valeri M. Petukhov, Oleg G. Morozov, Yuri E. Pol'ski, Rishad A. Akhtiamov, Dmitry L. Ovchinnikov
Publikováno v:
SPIE Proceedings.
The principles of design, problems of engineering realization, some results of first applications of two- frequency scanning Linear Frequency Modulation (LFM) lidars are discussed in the present paper. Basic method of transformation of one-frequency
Publikováno v:
SPIE Proceedings.
AC interferometers based on modificated Michelson's scheme allow to terminate disadvantages of DC interferometers, such as a high level of photo-detector noises, an instability of laser output radiation and other noises of low frequency nature. In th
Publikováno v:
SPIE Proceedings.
One of the main ways to develop testing nondestructive devices for fiber communication systems is to use optical reflectometry in frequency domain (OFDR) and LFM-technique. There are some problems in OFDR-systems which are determined by complexity de
Autor:
Oleg G. Morozov, Yuri E. Pol'ski, Zaytuna K. Petoukhova, German I. Il'in, Valery M. Petoukhov, Rishad A. Akhtiamov
Publikováno v:
SPIE Proceedings.
Most of oil product pipelines have a design life from 20 till 25 years. The first attributes of their destruction are leakage of oil products. In our paper we try to discuss advantages and disadvantages of one of the main nondestructive techniques to
Autor:
Oleg G. Morozov, Yuri E. Pol'ski
Publikováno v:
SPIE Proceedings.
Development trends of on-board fiber optic system for safety parameters monitoring of aerospace transport facilities are considered. Concept of joint field of integrated fiber optic sensors is incorporated and possibilities of on-board systems creati
Publikováno v:
SPIE Proceedings.
The problems of working out the IR-CW-LFM-lidar with transformation of one frequency laser radiation into two frequency and tuning probability are considered. Comparative analysis results for characteristics of two frequency laser radiators put into
Autor:
Oleg G. Morozov, Yuri E. Pol'ski
Publikováno v:
SPIE Proceedings.
The main problems of optical time and frequency domain reflectometry systems using for nondestructive evaluation of fibers, optical transparent and untransparent materials and composites structural integrity are analyzed in present paper. Their commo
Autor:
Yuri E. Pol'ski, Oleg G. Morozov
Publikováno v:
SPIE Proceedings.
The questions of amplitude fiber sensors utilization and optical reflectometry development for built-in systems used for nondestructive evaluation of solidity and integrity of basis aircraft constructions and units made from composite materials are d
Publikováno v:
SPIE Proceedings.
The devices transforming one frequency coherent radiation into two frequency ones for laser AC interferometers with polarization dived channels are examined. The relative analysis of their characteristics is given. The demands for them are determined