Soft- and hardware system in devices measuring deformation parameters in solids

A. V. Pakhomov National Research Center ‘Kharkiv Institute of Physics and Technology’ Academichna Str. 1, Kharkiv, Ukraine, 61108

Keywords: mechanical tests, strain gauge, microcontroller, ADC, mechanical properties, solid

Abstract

The research resulted in design and development of an original soft- and hardware system which digitizes the analog signal and provides multichannel data collection from strain gauge sensors on the base of a 32-bit microcontroller. This system allows to conduct mechanical tests of solids for tension (compression), and also to control conditions of an experiment (temperature, magnetic field, etc.). The designed complex also provides determining and studying of activating parameters of plastic flow in metals and alloys at tests for tension. The registration speed of deformation processes can reach about 10^-3 с^-1, and accuracy of measuring no less than 10 bits of useful signal.

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References

Gindin I.A., Kravchenko S.F., Starodubov Ya.D., Chechelnitskiy G.G. И.А., Scientific Instruments and Methods, № 2, 240 (1967).

Manufacturer of Electronic Components Analog Devices [Electronic resource]: Database. — Access mode: http://www.analog.com/ru/index.html.

Manufacturer of Electronic Components Texas Instruments [Electronic resource]: Database. — Access mode: http://www.ti.com/.

Manufacturer of Electronic Components STMicroelectronics [Electronic resource]: Database. — Access mode: http://www.st.com/web/en/home.html.