Manufacturing technology of a two-axial fiber-optic accelerometer

Мурашкина, Т. И.; Motin, A.V.; Badeeva, E. A.

doi:10.1088/1742-6596/803/1/012102

Cited by 2 publications

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“…In view of the constant growth in the number and variety of tasks solved by the acceleration sensors, it is necessary to constantly improve the existing measuring instruments and create new ones that meet the modern level of development for rocket-space and aviation technology. To reduce possible additional FOAS errors in difficult operating conditions and simultaneously expand their functionality by measuring accelerations in two directions, a two-coordinate acceleration sensor was proposed in [21][22][23][24] (Figure 1). In two-coordinate FOAS, two cylindrical lenses are fixed on two H-shaped elastic elements (Figure 2) deflected by an acceleration in two mutually perpendicular directions X and Y.…”

Section: Introductionmentioning

confidence: 99%

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

Badeeva

Мурашкина

Motin

et al. 2022

Sensors

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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.

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Section: Introductionmentioning

confidence: 99%