Miniature laser anemometer for 3D measurements

N. A. Ahmed; R. L. Elder; C. P. Forster; J. D.C. Jones

doi:10.1088/0957-0233/1/3/012

Miniature laser anemometer for 3D measurements

N. A. Ahmed, R. L. Elder, C. P. Forster, J. D.C. Jones

Cranfield University

Research output: Contribution to journal › Article › peer-review

54 Citations (Scopus)

Abstract

The authors describe an extremely compact laser anemometer primarily intended for boundary layer measurements in centrifugal compressors, but retaining the features and performance of a conventional instrument. The instrument has a very high spatial resolution of 80 mu m in all three dimensions and uses a technique of oblique backscatter to allow sequential measurement of the three orthogonal velocity components. An optical head with a diameter of 20 mm is remotely connected using optical fibres to the laser, photodetector and signal processing equipment. The design of the instrument is discussed, together with the results of laboratory tests which confirm its satisfactory operation.

Original language	English
Article number	012
Pages (from-to)	272-276
Number of pages	5
Journal	Measurement Science and Technology
Volume	1
Issue number	3
DOIs	https://doi.org/10.1088/0957-0233/1/3/012
Publication status	Published - 1990
Externally published	Yes

ASJC Scopus subject areas

Instrumentation
Engineering (miscellaneous)
Applied Mathematics

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10.1088/0957-0233/1/3/012

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AU - Elder, R. L.

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Y1 - 1990

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AB - The authors describe an extremely compact laser anemometer primarily intended for boundary layer measurements in centrifugal compressors, but retaining the features and performance of a conventional instrument. The instrument has a very high spatial resolution of 80 mu m in all three dimensions and uses a technique of oblique backscatter to allow sequential measurement of the three orthogonal velocity components. An optical head with a diameter of 20 mm is remotely connected using optical fibres to the laser, photodetector and signal processing equipment. The design of the instrument is discussed, together with the results of laboratory tests which confirm its satisfactory operation.

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Miniature laser anemometer for 3D measurements

Abstract

ASJC Scopus subject areas

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