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Record Details

Record 21 of 19467
Subminiature Hot-Wire Probes
Author and Affiliation:
Westphal, R. V.(NASA Ames Research Center, Moffett Field, CA.)
Lemos, F. R.(NASA Ames Research Center, Moffett Field, CA.)
Ligrani, P. M.(Naval Postgraduate School)
Abstract: Class of improved subminiature hot-wire flow-measuring probes developed. Smaller sizes yield improved resolution in measurements of practical aerodynamic flows. Probe made in one-wire, two-perpendicular-wire, and three-perpendicular-wire version for measurement of one, two, or all three components of flow. Oriented and positioned on micromanipulator stage and viewed under microscope during fabrication. Tested by taking measurements in constant-pressure turbulent boundary layer. New probes give improved measurements of turbulence quantities near surfaces and anisotropies of flows strongly influence relative errors caused by phenomena related to spatial resolution.
Publication Date: Oct 01, 1989
Document ID:
19890000504
(Acquired Nov 04, 1995)
Accession Number: 89B10504
Subject Category: PHYSICAL SCIENCES
Report/Patent Number: ARC-12228
Document Type: NASA Tech Brief
Publication Information: NASA Tech Briefs (ISSN 0145-319X); 13; 10; P. 40; (SEE N88-22336/TB)
Publisher Information: United States
Financial Sponsor: NASA; United States
Organization Source: NASA Ames Research Center; Moffett Field, CA, United States
Description: In English
Distribution Limits: Unclassified; Publicly available; Unlimited
Rights: No Copyright
NASA Terms: ANEMOMETERS; FLOW MEASUREMENT; HOT-WIRE ANEMOMETERS
Availability Source: National Technology Transfer Center (NTTC), Wheeling, WV
Availability Notes: Additional information available through: National Technology Transfer Center (NTTC), Wheeling, WV 26003, (Tel: 1-800-678-6882).
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