Boots – shoes – and leggings
Patent
1995-10-23
1997-05-13
Voeltz, Emanuel T.
Boots, shoes, and leggings
73602, 73620, 73600, G01N 2900, G01N 2904
Patent
active
056298650
ABSTRACT:
A pulse-echo, immersion method for ultrasonic evaluation of a material which accounts for and eliminates nonlevelness in the equipment set-up and sample thickness variation effects employs a single transducer and automatic scanning and digital imaging to obtain an image of a property of the material, such as pore fraction. The nonlevelness and thickness variation effects are accounted for by pre-scan adjustments of the time window to insure that the echoes received at each scan point are gated in the center of the window. This information is input into the scan file so that, during the automatic scanning for the material evaluation, each received echo is centered in its time window. A cross-correlation function calculates the velocity at each scan point, which is then proportionalized to a color or grey scale and displayed on a video screen.
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Cole Tony M.
Stone Kent N.
The United States of America as represented by the Administrator
Voeltz Emanuel T.
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