Boots – shoes – and leggings
Patent
1996-04-12
1998-03-24
Trammell, James P.
Boots, shoes, and leggings
73147, G01N 900
Patent
active
057319952
ABSTRACT:
A method of determining pressure requires that a three dimensional surface of an object (14) be covered with a pressure sensitive coating. Next a raw first image (74) is acquired while the object (14) is not under test and a raw second image (74) is acquired while the object is under test. The raw first image (74) and the raw second image (74) are adjusted for a dark image (76) to form an adjusted first image and an adjusted second image. The adjusted first image and the adjusted second image are mapped (78) from a two dimensional representation onto a three dimensional model, to form a first model and a second model. A ratio model is formed (80) by taking the ratio of the intensity of the first model and the second model. Finally, a pressure is determined (84) for every surface that forms the three dimensional model.
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patent: 5612492 (1997-03-01), Schwab et al.
Morris, "Use of Pressure-Sensitive Paints in Low-Speed Flows", 1995.
Borovoy et al., "Pressure Sensitive Paint Application in Shock Wind Tunnel", 1995.
Engler, "Further Developments of Pressure Sensitive Paint (OPMS) For Non Flat Models in Steady Transonic flow and Unsteady Conditions", 1995.
Burns et al., "The Use of Pressure Sensitive Paints on Rotating Machinery", 1995.
LeSant et al., "An Image Resection Method Applied to Mapping Techniques", 1995.
Houck et al., "Pressure Sensitive Paint Flight Test", 1996.
Engler et al., "Aerodynamic Assessment of an Optical Pressure Measurement Systems (OpMS) by Comparison with Conventional Pressure Measurements in a high Speed Wind Tunnel", 1991.
Benne Michael Edward
Donovan John Francis
Kelble Christopher Allen
Kihlken Thomas Allen
Morris Martin Jesse
Assouad Patrick
Halling Dale B.
Trammell James P.
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