Wavenumber response of the shear probe: Difference between revisions
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The probe-response correction depends on the dimensions of the shear probe. For a commonly used shear probe the spectrum is corrected for the spatial averaging of the shear probe by multiplying it by the factor correction <math>1+\left( \frac{k}{k_0} \right)^2</math> where <math>k_0</math> = 50 cpm and <math>k</math> is the wavenumber expressed in units of cpm <ref>Macoun, P., & Lueck, R. (2004). Modeling the spatial response of the airfoil shear probe using different sized probes. Journal of Atmospheric and Oceanic Technology, 21(2), 284-297.</ref>. The correction reaches a factor of 10 at a wavenumber of 150 cpm, and it is not recommended to use spectral data beyond this wavenumber unless | The probe-response correction depends on the dimensions of the shear probe. For a commonly used shear probe the spectrum is corrected for the spatial averaging of the shear probe by multiplying it by the factor correction <math>1+\left( \frac{k}{k_0} \right)^2</math> where <math>k_0</math> = 50 cpm and <math>k</math> is the wavenumber expressed in units of cpm <ref>Macoun, P., & Lueck, R. (2004). Modeling the spatial response of the airfoil shear probe using different sized probes. Journal of Atmospheric and Oceanic Technology, 21(2), 284-297.</ref>. The correction reaches a factor of 10 at a wavenumber of 150 cpm, and it is not recommended to use spectral data beyond this wavenumber unless your shear probe is small enough to have a cutoff wavenumber <math>k_0</math> that is larger than 50 cpm. | ||
==References== | ==References== | ||
<references /> | <references /> | ||
Revision as of 22:18, 19 November 2021
The probe-response correction depends on the dimensions of the shear probe. For a commonly used shear probe the spectrum is corrected for the spatial averaging of the shear probe by multiplying it by the factor correction [math]\displaystyle{ 1+\left( \frac{k}{k_0} \right)^2 }[/math] where [math]\displaystyle{ k_0 }[/math] = 50 cpm and [math]\displaystyle{ k }[/math] is the wavenumber expressed in units of cpm [1]. The correction reaches a factor of 10 at a wavenumber of 150 cpm, and it is not recommended to use spectral data beyond this wavenumber unless your shear probe is small enough to have a cutoff wavenumber [math]\displaystyle{ k_0 }[/math] that is larger than 50 cpm.
References
- ↑ Macoun, P., & Lueck, R. (2004). Modeling the spatial response of the airfoil shear probe using different sized probes. Journal of Atmospheric and Oceanic Technology, 21(2), 284-297.
