Boots – shoes – and leggings
Patent
1988-05-20
1991-09-24
Dixon, Joseph L.
Boots, shoes, and leggings
73105, 33536, G01B 528
Patent
active
050519336
ABSTRACT:
Method and apparatus for measuring the waviness of an aerodynamic surface includes a sensing unit that provides a plurality of data values which indicate the vertical deflection of a sensor at predetermined positions along the surface. A microprocessor receives the plurality of data values and processes the values in accordance with a method to determine the waviness of the surface. The microprocessor determines which of the plurality of data points have a convex curvature with respect to the data points to which it is adjacent and uses the convex data points to define lines which are tangent to the surface. The tangent lines are used to identify waves in the surface. The depth and length of each wave is determined from the tangent lines and the waviness calculation performed in accordance with a predetermined waviness formula.
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Mullen Joey J. H.
Sarr Dennis P.
Dixon Joseph L.
The Boeing Company
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