Liquid crystal cells – elements and systems – Liquid crystal optical element – Liquid crystal sensors
Patent
1997-09-29
1999-10-05
Sikes, William L.
Liquid crystal cells, elements and systems
Liquid crystal optical element
Liquid crystal sensors
73147, G02F 113, G01M 900
Patent
active
059632925
ABSTRACT:
A heat transfer-based surface flow visualization method and device that uses a temperature sensitive material to detect advection along a substrate upon application of heat and air flow and thereby provides a surface flow pattern. The present invention includes the capability of providing surface flow patterns for positions of flow separation, reversal of flow and transition flow and is non-intrusive and more cost effective than known methods.
REFERENCES:
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patent: 3977244 (1976-08-01), Stone
patent: 4255048 (1981-03-01), Franke
patent: 4807990 (1989-02-01), Keefer
patent: 4896532 (1990-01-01), Schmalz
patent: 5045699 (1991-09-01), Schulze et al.
Jessica L. Townsend, "A Laser thermal Tuft Using Liquid Crystals for Flow Visualization", Thesis submitted to Univ. of Calif. at Davis, 1996.
Baughn James W.
Butler Robert J.
Byerley Aaron R.
Rivir Richard B.
Townsend Jessica L.
Eisenhut Heidi L.
Hollins Gerald B.
Kundert Thomas L.
Sikes William L.
The United States of America as represented by the Secretary of
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