Calculation of Output Optical Signals of Mechanoluminescent Impulse Pressure Sensors

Sensors & Transducers Journal

(ISSN: 2306-8515, e-ISSN 1726-5479)

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Vol. 237, Issue 9-10, September-October 2019, pp. 52-59

Calculation of Output Optical Signals of Mechanoluminescent Impulse Pressure Sensors

Konstantin Tatmyshevskiy

Vladimir State University, 87 Gorky Str., 600000, Vladimir, Russia
Tel.: + 79051456012, fax: + 7(4922)335242

E-mail: tatmysh@vlsu.ru

Received: 30 August 2019 /Accepted: 27 September 2019 /Published: 30 November 2019

Abstract: Mechanoluminescence is the visible or infrared radiation of solids arising from mechanical action. The brightest glow is observed under the influence of pulsed pressures. Mechanoluminescent sensors are based on the principle of direct conversion of the input mechanical pressure into the output optical signal. Such sensors can be used in conjunction with fiber optic data transmission channels, which provides high noise immunity to electromagnetic interference. This article describes the physical mechanism of operation of mechanoluminescent sensors made of ZnS:Mn. Mechanoluminescence occurs upon excitation of luminescence centers in the form of atoms Mn due to the displacement of charged dislocations accompanying the plastic deformation of the sensor. The mathematical model of the sensor and the results of calculating the output optical signals depending on the parameters of the pressure pulses are presented.

Keywords: Mechanoluminescence, Mechanoluminescent sensor, Dislocation kinetics, Light generation sensor.

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