TY  - JOUR
T1  - Methodology of measurement of soil nanovibrations using a laser Doppler vibrometer for the detection of buried explosive objects
AU  - L.V. Borkovska
AU  - V.P. Kyslyi
AU  - V.O. Morozhenko
AU  - Yu.G. Serozhkin
AU  - E.O. Soloviev
AU  - V.M. Nastych
JO  - Semiconductor Physics, Quantum Electronics & Optoelectronics
VL  - 28
IS  - 4
SP  - 486
EP  - 492
PY  - 2025
DO  - 10.15407/spqeo28.04.486
UR  - https://doi.org/10.15407/spqeo28.04.486
AB  - The work aims to develop an advanced acousto-optical method for detection of explosive objects buried in the soil. It is based on measuring mechanical nanovibrations of the soil using a laser Doppler vibrometer (LDV). The non-destructive peculiarity of the method and the possibility of remote sensing are of particular importance in the context of humanitarian demining. This work provides a detailed examination of the design, operating principle, and mathematical background for the signal processing of the LDV developed at the V. Lashkaryov Institute of Semiconductor Physics of the National Academy of Sciences of Ukraine. It is theoretically shown that for this device, the precision of vibration measurement is tenths of a nanometer within the vibration frequency range of 50…1000 Hz. The method of device calibration and determination of the empirical coefficients for calculating the amplitude of the measured vibrations is described. An example of a laboratory experimental study of the vibrations of a surface of moist soil with a buried full-size plastic simulant of Soviet anti-personnel mine PMN-2 stimulated by acoustic wave irradiation is presented.
KW  - laser Doppler vibrometer
KW  - buried landmine detection
KW  - humanitarian demining
ER  -