Open AccessLaser doppler vibrometer with remote object scanning capability
Author(s) -
O. A. Abramov,
V. M. Emelyanov,
O. G. Kutsenko,
G Otto,
K. Otto,
Leonid K. Yarovoi
Publication year - 2019
Publication title -
vìsnik. serìâ fìziko-matematičnì nauki/vìsnik kiì̈vsʹkogo nacìonalʹnogo unìversitetu ìmenì tarasa ševčenka. serìâ fìziko-matematičnì nauki
Language(s) - English
Resource type - Journals
eISSN - 2218-2055
pISSN - 1812-5409
DOI - 10.17721/1812-5409.2019/1.2
Subject(s) - laser doppler vibrometer , laser scanning vibrometry , vibration , doppler effect , acoustics , laser doppler velocimetry , optics , cantilever , laser , measure (data warehouse) , computer science , physics , laser beams , engineering , structural engineering , medicine , blood flow , astronomy , database
A laser Doppler vibrometer was created with the ability to measure the vibrations of distant objects up to 250 meters away. The vibrometer is provided with a scanning system for automatic vibration measurement in an array of points. The control program moves the probe beam according to the research protocol, processes and store information. To demonstrate the capabilities of the system, we studied of the amplitude distribution of vibrations and the distribution of longitudinal stresses in a cantilevered tube located at a distance of 22 meters. The measurements at different frequencies are in good agreement with the numerical calculations performed by finite element code CalculiX.