Title :
Multicomponent heterodyne laser Doppler anemometer using chirp-modulated Nd:YAG ring laser and fibre delay line
Author :
Czarske, J.W. ; Müller, H.
Author_Institution :
Inst. for Eng. Metrology, Hannover Univ., Germany
fDate :
8/17/1995 12:00:00 AM
Abstract :
A two-dimensional directional laser Doppler anemometer using a frequency modulated Nd:YAG laser is presented for the first time. The magnitude and sign of the fluid velocity were determined by employing the heterodyne technique without having to use an external frequency shifter
Keywords :
Doppler measurement; anemometers; fibre optic sensors; laser velocimeters; laser velocimetry; optical delay lines; optical modulation; ring lasers; solid lasers; YAG:Nd; YAl5O12:Nd; chirp-modulated ring laser; fibre delay line; fluid velocity measurement; frequency modulated laser; laser Doppler anemometer; multicomponent heterodyne anemometer; two-dimensional directional anemometer;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19951011
