Open AccessLight Flicker Frequencies in the HID lamps
Author(s) -
Amer Lakhdar,
Hassani Messaoud,
Chellali Benachiba
Publication year - 2017
Publication title -
algerian journal of signals and systems
Language(s) - English
Resource type - Journals
eISSN - 2676-1548
pISSN - 2543-3792
DOI - 10.51485/ajss.v2i2.36
Subject(s) - flicker , electric light , arc (geometry) , optics , incandescent light bulb , electric arc , arc lamp , gas discharge lamp , photodiode , acoustics , intensity (physics) , light intensity , physics , electrical engineering , materials science , engineering , electrode , voltage , mechanical engineering , quantum mechanics
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.