Title :
Pulsed type ultrasonic anemometer based on a double FFT procedure
Author :
Tang, Shan ; Federspiel, Clifford C. ; Auslander, David M.
Author_Institution :
Dept. of Mech. Eng., California Univ., Berkeley, CA, USA
Abstract :
A signal processing algorithm for a pulsed type ultrasonic anemometer is described. The measurement principle is based on the linear relationship between the inverse transit time difference (TTD) and air velocity. The algorithm uses two phases of fast fourier transforms (FFTs). Computer simulations demonstrate the high performance of this algorithm. Its advantages over other pulsed type algorithm are discussed.
Keywords :
anemometers; fast Fourier transforms; signal processing; ultrasonic applications; air velocity; computer simulations; double FFT procedure; fast Fourier transforms; inverse transit time difference; signal processing algorithm; ultrasonic anemometer; Area measurement; Fluid flow measurement; Heat transfer; Pollution measurement; Signal processing algorithms; Space heating; Thermal pollution; Time measurement; Ultrasonic variables measurement; Velocity measurement;
Conference_Titel :
Sensors, 2003. Proceedings of IEEE
Print_ISBN :
0-7803-8133-5
DOI :
10.1109/ICSENS.2003.1278951
