Low cost subpixel method for vibration measurement

Journal Article · Tue May 27 00:00:00 EDT 2014 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.4879584· OSTI ID:22311317

Ferrer, Belen ^[1]; Espinosa, Julian; Perez, Jorge; Acevedo, Pablo; Mas, David ^[2]; Roig, Ana B. ^[3]

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1. Department of Civil Engineering, Univ. Alicante P.O. Box, 99, 03080 Alicante (Spain)
2. Inst. of Physics Applied to the Sciences and Technologies, Univ. Alicante P.O. Box, 99, 03080 Alicante (Spain)
3. Department of Optics, Univ. Alicante P.O. Box, 99, 03080 Alicante (Spain)

Traditional vibration measurement methods are based on devices that acquire local data by direct contact (accelerometers, GPS) or by laser beams (Doppler vibrometers). Our proposal uses video processing to obtain the vibration frequency directly from the scene, without the need of auxiliary targets or devices. Our video-vibrometer can obtain the vibration frequency at any point in the scene and can be implemented with low-cost devices, such as commercial cameras. Here we present the underlying theory and some experiments that support our technique.

• OSTI ID: 22311317
• Journal Information: AIP Conference Proceedings, Vol. 1600, Issue 1; Conference: AIVELA 2014: 11. international conference on vibration measurements by laser and noncontact techniques, Ancona (Italy), 25-27 Jun 2014; Other Information: (c) 2014 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
CAMERAS
DOPPLER EFFECT
LASER RADIATION
MEASURING METHODS
MECHANICAL VIBRATIONS