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Proceedings Paper

Research and application of fiber Bragg grating-based temperature sensors using a technique of discontinuous control and setting adjustment
Author(s): Vardan Mkrttchian; Aram Paronikyan; Merujan Grigoryan; Sergey Balyan
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Paper Abstract

The main lack of application of an optical system with Fiber Bragg Grating (FBG), as countermeasure feeler of a management system is a thermal drift, as a result of which depends undesirable oscillations of control parameters of an optical system. Depending on a thermal drift, the wavelength can change by attitude 0.01 nm/ degree(s)N, that is caused by change of a factor of an interception of a fiber and minor effect of heat expansion of a fiber. These changes are unwanted to those narrow intervals of a channel used in fast-response systems, which one today can achieve up to 50 GHz. The suggested technique is based upon a synthesis of two independent concepts of control, the sliding mode and optimal rating. The currently accepted title of this technique is DISCONTINUOUS CONTROL and SETTING ADJUSTMENT. The sliding mode is a technique used for discontinuous control and setting adjustment for optical system with FGS-s optimization. Control within sliding mode enables us to decrease the sensitivity to variations of optical system with FBG-s characteristics making them independent upon the environment. On the basis of offered technique by us is built testing software for synthesis new optical sensors of temperature.

Paper Details

Date Published: 31 August 2000
PDF: 8 pages
Proc. SPIE 4074, Applications of Optical Fiber Sensors, (31 August 2000); doi: 10.1117/12.397914
Show Author Affiliations
Vardan Mkrttchian, State Engineering Univ. of Armenia (Armenia)
Aram Paronikyan, State Engineering Univ. of Armenia (Armenia)
Merujan Grigoryan, State Engineering Univ. of Armenia (Armenia)
Sergey Balyan, State Engineering Univ. of Armenia (Armenia)


Published in SPIE Proceedings Vol. 4074:
Applications of Optical Fiber Sensors

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