Direct measurement of the spectral transfer function of a laser based anemometer

Publication: Research - peer-review › Journal article – Annual report year: 2012

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Direct measurement of the spectral transfer function of a laser based anemometer. / Angelou, Nikolas ; Mann, Jakob ; Sjöholm, Mikael ; Courtney, Michael.

In: Review of Scientific Instruments, Vol. 83, No. 3, 2012, p. 033111.

Publication: Research - peer-review › Journal article – Annual report year: 2012

In: Review of Scientific Instruments, Vol. 83, No. 3, 2012, p. 033111.

Publication: Research - peer-review › Journal article – Annual report year: 2012

Bibtex

@article{af5c96d598864c79b2b5290a4e376f73,

title = "Direct measurement of the spectral transfer function of a laser based anemometer",

publisher = "American Institute of Physics",

author = "Nikolas Angelou and Jakob Mann and Mikael Sjöholm and Michael Courtney",

note = "Copyright (2012) American Institute of Physics. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Institute of Physics. The following article appeared in Review of Scientific Instruments / Volume 83 and may be found at http://rsi.aip.org/resource/1/rsinak/v83/i3/p033111_s1",

year = "2012",

volume = "83",

number = "3",

pages = "033111",

journal = "Review of Scientific Instruments",

issn = "0034-6748",

}

RIS

TY - JOUR

T1 - Direct measurement of the spectral transfer function of a laser based anemometer

A1 - Angelou,Nikolas

A1 - Mann,Jakob

A1 - Sjöholm,Mikael

A1 - Courtney,Michael

AU - Angelou,Nikolas

AU - Mann,Jakob

AU - Sjöholm,Mikael

AU - Courtney,Michael

PB - American Institute of Physics

PY - 2012

Y1 - 2012

N2 - The effect of a continuous-wave (cw) laser based anemometer's probe volume on the measurement of wind turbulence is studied in this paper. Wind speed time series acquired by both a remote sensing cw laser anemometer, whose line-of-sight was aligned with the wind direction, and by a reference sensor (sonic anemometer) located in the same direction, were used. The spectral transfer function, which describes the attenuation of the power spectral density of the wind speed turbulence, was calculated and found to be in good agreement with the theoretical exponential function, which is based on the properties of the probe volume of a focused Gaussian laser beam. Parameters such as fluctuations of the wind direction, as well as the overestimation of the laser Doppler spectrum threshold, were found to affect the calculation of the spectral transfer function by introducing high frequency noise. <br/>© 2012 American Institute of Physics

AB - The effect of a continuous-wave (cw) laser based anemometer's probe volume on the measurement of wind turbulence is studied in this paper. Wind speed time series acquired by both a remote sensing cw laser anemometer, whose line-of-sight was aligned with the wind direction, and by a reference sensor (sonic anemometer) located in the same direction, were used. The spectral transfer function, which describes the attenuation of the power spectral density of the wind speed turbulence, was calculated and found to be in good agreement with the theoretical exponential function, which is based on the properties of the probe volume of a focused Gaussian laser beam. Parameters such as fluctuations of the wind direction, as well as the overestimation of the laser Doppler spectrum threshold, were found to affect the calculation of the spectral transfer function by introducing high frequency noise. <br/>© 2012 American Institute of Physics

U2 - 10.1063/1.3697728

DO - 10.1063/1.3697728

JO - Review of Scientific Instruments

JF - Review of Scientific Instruments

SN - 0034-6748

IS - 3

VL - 83

SP - 033111

ER -