Abstract
A continuous wave Doppler velocimeter has been developed for remote estimation of the volume of polluted water and gaseous discharges using an actively stabilized ring dye laser. Doppler shifted backscattered signals induced by fluids in motion using heterodyne detection technique has been applied for measurement of Doppler shifts. Polluted water and gaseous discharge flow rates have been measured remotely for simulation purposes. The system is capable of measuring Doppler shifts as low as 0.25 MHz corresponding to 0.1 m/s velocities of the fluids.
Original language | English |
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Pages (from-to) | 589-600 |
Number of pages | 12 |
Journal | Optics and Lasers in Engineering |
Volume | 38 |
Issue number | 6 |
DOIs | |
State | Published - Dec 2002 |
Bibliographical note
Funding Information:This work is a part of an internal project funded by the Research Institute of KFUPM.
Keywords
- Heterodyne detection
- Laser Doppler velocimeter
- Remote measurement
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Atomic and Molecular Physics, and Optics
- Mechanical Engineering
- Electrical and Electronic Engineering