Communications - Scientific Letters of the University of Zilina 2019, 21(4):75-80 | DOI: 10.26552/com.C.2019.4.75-80

Correction of Oblique-Angle Oscillation for Laser Doppler Vibrometry

Vladimir Kindl1, Tomas Kavalir2, Jiri Sika2, Michal Krizek2
1 Regional Innovation Centre for Electrical Engineering, Faculty of Electrical Engineering, University of West Bohemia, Pilsen, Czech Republic
2 Regional Technological Institute, Faculty of Mechanical Engineering, University of West Bohemia, Pilsen, Czech Republic

The paper proposes a correction method of the oblique-angle vibration for laser doppler vibrometry. It briefly discusses the key mathematical approach considering the surface of the analysed object to be a reference plane and gives a practical example of the method proper application. The proposed correction method is practically verified by laboratory measurement of natural frequencies and mode shapes for vibrations of high voltage transformer housing. The results are further compared to equivalent accelerometer measurement.

Keywords: laser; doppler; vibrometry; measurement; prototype; oblique-angle; correction

Received: June 5, 2019; Accepted: July 15, 2019; Published: October 1, 2019  Show citation

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Kindl, V., Kavalir, T., Sika, J., & Krizek, M. (2019). Correction of Oblique-Angle Oscillation for Laser Doppler Vibrometry. Communications - Scientific Letters of the University of Zilina21(4), 75-80. doi: 10.26552/com.C.2019.4.75-80
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