TY JOUR TI Digital vibrometer on the basis of the piezoelectric effect KW mechanical vibrations KW vibration sensor KW acceleration KW velocity KW displacement. JO Actual directions of scientific researches of the XXI century: theory and practice AU Miroshnichenko, A.. AU Klevets, K.. AU Tarasov, A.. PY 2015 IS 3 PB FSBE Institution of Higher Education Voronezh State University of Forestry and Technologies named after G.F. Morozov