Measuring and testing – Volume or rate of flow – Thermal type
Patent
1994-11-21
1996-11-19
Chilcot, Richard
Measuring and testing
Volume or rate of flow
Thermal type
G01F 168
Patent
active
055764886
ABSTRACT:
A device for measuring turbulence in high-speed flows is provided which includes a micro-sensor thin-film probe. The probe is formed from a single crystal of aluminum oxide having a 14.degree. half-wedge shaped portion. The tip of the half-wedge is rounded and has a thin-film sensor attached along the stagnation line. The bottom surface of the half-wedge is tilted upward to relieve shock induced disturbances created by the curved tip of the half-wedge. The sensor is applied using a microphotolithography technique.
REFERENCES:
patent: 4024761 (1977-05-01), Djorup
patent: 4345465 (1982-08-01), Gruner et al.
patent: 4448070 (1984-05-01), Ohyama et al.
patent: 4616506 (1986-10-01), Sumal
patent: 4829819 (1989-05-01), Lefteriou et al.
patent: 5218865 (1993-06-01), Djorup
patent: 5307677 (1994-05-01), Beyrich et al.
patent: 5361634 (1994-11-01), Uramachi
patent: 5423213 (1995-06-01), Yajima
S. C. Ling et al., "The Hot-Film Anemometer: A New Device for Fluid Mechanics Research", J. Aeronautical Sci., Sep. 1956, pp. 890-891.
G. W. Lowery et al., "The Effect of Turbulence on Heat Transfer From Heated Cylinders", Int. J. Heat Mass Transfer, vol. 18, pp. 1229-1242.
A. Demetriades et al., "Characteristics of Hot-Film Anemometers for Use in Hypersonic Flows", Technical Notes, Nov. 1990, pp. 2003-2005.
J. M. Seiner, "The Wedge Hot-Film Anemometer in Supersonic Flow", NASA TP 2134, 1983, 55 pgs.
E. F. spina et al., "Constant-Temperature Anemometry in Hypersonic Flow: Critical Issues and Sample Results", Third International Symposium on Thermal Anemometry, ASME, Jun. 1993, 30 pgs.
Cruz Vincent B.
Hopson, Jr. Purnell
McGinley Catherine B.
Sheplak Mark
Spina Eric F.
Artis Jewel V.
Chilcot Richard
Helfrich George F.
The United States of America as represented by the United States
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