Challenges in assessing the vibrations influence on people in buildings using non-contact measurements
JCEEA 70 (2023) Cover page
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vibration measurements
laser vibrometry
vibration influence on people in buildings
signal processing

How to Cite

Bróż N, Nazarko P. Challenges in assessing the vibrations influence on people in buildings using non-contact measurements. JCEEA [Internet]. 2023Oct.18 [cited 2023Dec.11];700:51-4. Available from:


This research article presents a~comparative analysis of vibration assessments in lecture halls to investigate their influence on people using contact (accelerometers) and non-contact (laser vibrometers) measurement techniques. The study aims to verify the accuracy and reliability of vibration analysis in relation to two approaches and determined physical parameters, i.e. acceleration amplitudes and vibration velocities. The intriguing fact was that none of the building users reported any perceived discomfort from vibrations, despite the determined parameters of the signal measured using a~laser vibrometer indicating exceedance of permissible vibration amplitudes in several frequency bands. The conducted comparative analysis leads to the conclusion that the location of the laser head tripod on the vibrating floor introduces significant vibration amplification, which in turn may lead to an incorrect assessment of the impact of vibrations on people in buildings. The studies described in the article were carried out in accordance with the procedure contained in the Polish national standard PN-B-02171. The obtained results and the resulting conclusions are an important contribution to a~better understanding of the advantages and limitations resulting from the use of non-contact measurements.
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