Title :
The compensating of medium parameters influence on 3D measurement of speed and direction of turbulent air movement
Author :
Shirokov, I.B. ; Serdyuk, I.V. ; Mukhin, A.A.
Author_Institution :
Sevastopol Nat. Tech. Univ., Ukraine
Abstract :
The acoustic method of measurement of the speed and direction of motion of turbulent air is discussed. The method is based on the Doppler effect and lets us adequately measure the wind speed up to 330 m/s - the acoustic wave velocity in air. For supervising weak air turbulence it is suggested that the phase difference of the signal is measured with respect to a reference one. The analysis of errors of the measuring device is presented in the paper. The complex compensation of the influence of atmospheric conditions on the measurements is suggested. The results of phase propagation in open measuring channels are compared with the results in a channel that is protected from wind influence but has the other properties of an open channel. The phase propagation in the reference channel is assumed as the reference point.
Keywords :
Doppler effect; acoustic measurement; acoustic wave velocity; acoustic wave velocity measurement; aerodynamics; air; channel flow; flow measurement; turbulence; wind; Doppler effect; acoustic method; error analysis; movement direction; open channels; phase difference; phase propagation; turbulent air movement; weak air turbulence; wind speed measurement; Acoustic measurements; Acoustic waves; Atmospheric measurements; Atmospheric waves; Doppler effect; Error analysis; Motion measurement; Phase measurement; Velocity measurement; Wind speed; Acoustic; frequency shift; phase delay; turbulent air;
Conference_Titel :
Electrical and Electronics Engineers in Israel, 2008. IEEEI 2008. IEEE 25th Convention of
Conference_Location :
Eilat
Print_ISBN :
978-1-4244-2481-8
Electronic_ISBN :
978-1-4244-2482-5
DOI :
10.1109/EEEI.2008.4736572
