Light Flicker Frequencies in the HID lamps
Keywords:Acoustic resonance, Fast Fourier Transform FFT, photodiode, Arc Motion, MOS image sensors
In order to reduce the electric consumption for high intensity discharge lamps (HID), the use of high frequencies electronic ballasts represents both a solution and many advantages such as, the decrease in the congestion, low costs and weak losses, approximately 10%. However it is not regarded as perfectly reliable, this is due in a great part to the appearance of Acoustic Resonances inside the arc tube which can result in low frequency light flicker and even lamp destruction. Experimentally we used a HID lamp of 50 W and we determined, light flicker frequencies and the arc motion frequencies using a photodiode which detects the light intensity fluctuation and a camera to record the arc motion. The experiment was done in the Department of Mechanical Engineering and Production, Hamburg University of Applied Sciences.
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Copyright (c) 2017 Lakhdar Amer, Messaoud Hamouda, Chellali Benachiba
This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.