The Maxwell‑Wagner relaxation of electric fields in the piezo-electro-luminescent fiber-optical sensor of vibration pressure

A. A. Pan'kov
State National Research Polytechnical University of Perm, Komsomolskiy pr. 29, Perm 614990, Russia

 The paper is received on October 17, 2017

 

Abstract. The algorithm of finding of function of distribution of amplitude of the vibration pressure longwise three-phase fiber optic sensor by results of the intensity of light proceeding from a fiber optic phase measured on the edge section of the sensor is developed for a case of nonlinear "function of a luminescence", which is the dependence of intensity of light on voltage operating on a luminescent element. The problem is reduced to the solution of the Fredholm integral equation of the 1st kind with the differential kernel depending on the calculated effective parameters of the sensor and on the derivative set function of a luminescent element. The analysis of influence of Maxwell‑Wagner relaxation of electric fields in the structure elements of the fiber-optical sensor and the influence of frequency of the diagnosed vibration pressure upon the operating and informative coefficients of the sensor are carried out.

Key words: piezo-electro-elasticity, mechanical-luminescent effect, optical fiber, sensor of pressure, Maxwell‑Wagner relaxation.

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For citation:

A. A. Pan'kov. The Maxwell‑Wagner relaxation of electric fields in the piezo-electro-luminescent fiber-optical sensor of vibration pressure. Zhurnal Radioelektroniki - Journal of Radio Electronics, 2017, No. 11. Available at http://jre.cplire.ru/jre/nov17/6/text.pdf. (In Russian)