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An acoustic sensor system for determination of macroscopic surface roughness

In this paper, an alternative technique for the measurement of roughness of road surfaces is proposed. This noncontact method is based on the scattering of acoustic waves from the road surface and measuring the normalized Fourier spectrum of the scattered wave in the specular direction. Surfaces pre...

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Published in:IEEE transactions on instrumentation and measurement 1996-10, Vol.45 (5), p.879-884
Main Authors: Swart, P.L., Lacquet, B.M., Blom, C.
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Language:English
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cited_by cdi_FETCH-LOGICAL-c306t-7220b97788c85c6224e777fbe6d46a906d1cdecf476006b4a4b3627b9ce4a5f53
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creator Swart, P.L.
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description In this paper, an alternative technique for the measurement of roughness of road surfaces is proposed. This noncontact method is based on the scattering of acoustic waves from the road surface and measuring the normalized Fourier spectrum of the scattered wave in the specular direction. Surfaces prepared with different size aggregates ranging from 2.36 mm to 25 mm were analyzed. The roughness parameter of a surface increases linearly with increasing aggregate size. The proposed method can possibly be extended to perform in situ surface roughness measurements from a moving vehicle.
doi_str_mv 10.1109/19.536705
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subjects Acoustic measurements
Acoustic scattering
Acoustic sensors
Acoustic waves
Acoustical measurements and instrumentation
Acoustics
Aggregates
Exact sciences and technology
Fundamental areas of phenomenology (including applications)
Performance evaluation
Physics
Roads
Rough surfaces
Surface acoustic waves
Surface roughness
title An acoustic sensor system for determination of macroscopic surface roughness
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