Device for mechanically determining location and height of all variations in pavement surface without personal element necessary in straigh-tedging; it consists of carriage mounted on 16 bicycle wheels by members so arranged as to reduce movement of pavement surface to minimum.
Profilometer measures smoothness
Highway Engr. Contractor
Highway Engineer and Contractor ; 15 , n 4
1926
1 Fig.
Article (Journal)
English
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