Acoustic Resonance Phenomena in Low Wattage Metal Halide Lamps
- 1 April 1985
- journal article
- ies transaction
- Published by Taylor & Francis in Journal of the Illuminating Engineering Society
- Vol. 14 (2) , 633-642
- https://doi.org/10.1080/00994480.1985.10748802
Abstract
Computations of the acoustic frequencies and mode shapes were performed for small discharge lamps—about 6mm diameter, 30 Watts power. The effects of realistic temperature profiles and of electrodes are included in the computations. Comparison with observed high-frequency operating ranges of the lamps shows that acoustic resonance is responsible for instability of the discharge over most frequencies. The effects of bulb shape and electrode gap variations are computed, and it is shown how to widen the main operating frequency window by 20–25 percent.Keywords
This publication has 2 references indexed in Scilit:
- Acoustic resonances in cylindrical high-pressure arc dischargesJournal of Applied Physics, 1978
- Acoustical resonances in modulated compact arc lampsApplied Optics, 1977