A laser Doppler technique for measuring flow velocities in high current arc discharges
- 1 August 1974
- journal article
- Published by IOP Publishing in Journal of Physics E: Scientific Instruments
- Vol. 7 (8) , 663-666
- https://doi.org/10.1088/0022-3735/7/8/022
Abstract
A laser Doppler system is described which is capable of measuring gas flow velocities up to 3*103 m s-1. The sensitivity of the system is sufficient to detect light scattered from a single micrometre sized particle against, for instance, the intense background radiation generated by a 10 kA arc discharge burning vertically in air between copper electrodes. Some preliminary velocity measurements are presented for a 3 kA arc burning in an underexpanded supersonic air jet within a model circuit-breaker test head.Keywords
This publication has 5 references indexed in Scilit:
- Measurements of plasma velocity distributions in free-burning DC arcs up to 2160 AJournal of Physics D: Applied Physics, 1972
- Coherent and noncoherent methods in Doppler optical beat velocity measurementJournal of Physics D: Applied Physics, 1972
- Optimization of optical anemometersProceedings of the Royal Society of London. Series A. Mathematical and Physical Sciences, 1971
- über das Geschwindigkeitsfeld der HochstromkohlebogensäuleThe European Physical Journal A, 1955
- The Mach Interferometer Applied to Studying an Axially Symmetric Supersonic Air JetReview of Scientific Instruments, 1948