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A swinging arm calibration method for low velocity hot-wire probe calibration

โœ Scribed by H. H. Bruun; B. Farrar; I. Watson

Publisher
Springer
Year
1989
Tongue
English
Weight
410 KB
Volume
7
Category
Article
ISSN
0723-4864

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โœฆ Synopsis

This paper describes a swinging arm calibration facility for the calibration of hot-wire probes at low velocities. During the motion of the probe the anemometer signal is recorded digitally using pre-set angle positions for the start and stop of the data acquisition. The evaluation method described in this paper is based on an integral procedure over a fixed, known probe path length. Tests in the velocity range 1 to 6 m/s demonstrated a high degree of repeatability of the calibration results. Furthermore, the test facilities can easily be adjusted for other low velocity ranges.

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