Boots – shoes – and leggings
Patent
1988-08-08
1990-02-06
Lall, Parshotam S.
Boots, shoes, and leggings
364557, 374129, 358108, 73146, G01B 1130
Patent
active
048992968
ABSTRACT:
A pavement inspection apparatus is described for inspecting the condition of a full lane of pavement using a vehicle capable of traveling along the lane at normal traffic speeds, such as 55 miles per hour. The apparatus is capable of determining the size and shapes of surface distress features such as longitudinal cracks, transverse cracks, alligator cracks, design joints, and potholes. The apparatus has two video array cameras that project downward onto the pavement with overlapping fields of view for generating X-Y pixel data from at least a 12-foot lane width of highway pavement as the vehicle moves over the pavement. The cameras are mounted at acute angles with respect to each other. The apparatus includes distress feature analysis electronics for determining the size, shape and location of surface distress features and evaluates such features against preset standard values to determine the severity of the determined features. Additionally, the apparatus has infrared cameras for subsurface exploration. Subsurface pavement features, such as, the soil type and moisture content distribution are determined by the distortions in the surface temperature profile captured by the infrared cameras.
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Lall Parshotam S.
Melnick S. A.
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