%0 Journal Article %T Microprocessor ultrasonic hardness tester %A Kazaryan, A.. %A Bodaeva, M.. %A Kovalev, I.. %K ultrasound, hardness measurement, hardness tester, ultrasonic methods are %J Actual directions of scientific researches of the XXI century: theory and practice %D 2015 %N 3 %P 3 %I FSBE Institution of Higher Education Voronezh State University of Forestry and Technologies named after G.F. Morozov