Measuring Setup for Experimental Research of Two-Coordinate Fiber-Optic Acceleration Sensors with Cylindrical Lenses

Elena Badeeva; Tatiana Murashkina; Andrey Motin; Saygid Uvaysov; Ainur Kozbakova; Daniel Sawicki

doi:10.3390/s22031125

Measuring Setup for Experimental Research of Two-Coordinate Fiber-Optic Acceleration Sensors with Cylindrical Lenses

Sensors (Basel). 2022 Feb 1;22(3):1125. doi: 10.3390/s22031125.

Authors

Elena Badeeva¹, Tatiana Murashkina¹, Andrey Motin², Saygid Uvaysov³, Ainur Kozbakova^{4

5}, Daniel Sawicki⁶

Affiliations

¹ Department of Radio Engineering and Radio Electronic Systems, Penza State University, 440026 Penza, Russia.
² Institute of Physical Measurements, JSC "Scientific Research Institute for Physical Measurements", 440026 Penza, Russia.
³ Department of Design and Production of Radio-Electronic Means, Russian Technological University, 119454 Moscow, Russia.
⁴ Laboratory of Artificial Intelligence and Robotics, Institute of Information and Computational Technologies CS MES RK, Almaty 050010, Kazakhstan.
⁵ Department of Information Technologies, Almaty Technological University, Almaty 050013, Kazakhstan.
⁶ Departament of Electronics and Informational Technology, Lublin University of Technology, Nadbystrzycka 38d, 20-618 Lublin, Poland.

Abstract

The article presents the possibilities of using fiber-optic acceleration (FOC) sensors on products of rocket-space and aviation technology as part of information-measuring systems. A special measuring device has been developed for experimental confirmation of the main characteristics of the technical characteristics of the developed, two-coordinate fiber-optic acceleration sensors. The developed measuring setup for the experimental research of a two-coordinate fiber-optic acceleration sensor with two, cylindrical lenses fixed on two H-shaped elastic elements deflected under the influence of acceleration in two mutually perpendicular directions X and Y, intended for operation in harsh conditions of rocket and space technology. The experimental equipment consists of the developed setup for setting micromovements and an information conversion unit, including modules for signal conversion, transmission, power supply, signal amplification, and indication. Experimental dependences of the output voltage from the information conversion unit's output on the micro-displacement in the range corresponding to the micro-displacements of the inertial mass with a cylindrical lens under acceleration in the range of ±100 m/s² were obtained on the micro-displacement setting unit. The maximum value of the linearity error of the prototype acceleration sensor together with the information conversion unit was 0.07%. The conversion sensitivity of a two-coordinate fiber-optic acceleration sensor per the experimental dependences obtained on the Data Physics LE-612 MST/DSA 10-40 k vibration stand when exposed to sinusoidal vibration with an acceleration amplitude from 2 to 10 g in the frequency range from 5 to 2560 Hz was, on average, 3 mV/m/s². The conducted experimental research confirms the performance of experimental samples of fiber-optic acceleration sensors together with an information conversion unit, as well as the achievement of high metrological characteristics.

Keywords: H-shaped elastic element; cylindrical lens; experimental setup; information conversion unit; two-coordinate fiber-optic acceleration sensor.