Title :
An Alternative Optical Method for Acoustic Resonance Detection in HID Lamps
Author :
Kaiser, Walter ; Marques, Ricardo Paulino ; Correa, Alexander Fernandez
Author_Institution :
Escola Politec. da Univ. de Sao Paulo, Sao Paulo, Brazil
Abstract :
Acoustic resonances are observed in high-pressure discharge lamps operated with ac input modulated power frequencies in the kHz range. This paper describes an optical resonance detection method for HID lamps using computer controlled cameras and image processing software. Experimental results showing acoustic resonances in HPS and metal halide lamps are presented.
Keywords :
acoustic resonance; discharge lamps; metal vapour lamps; power engineering computing; HID lamps; HPS; ac input modulated power frequencies; alternative optical method; computer controlled cameras; for acoustic resonance detection; high-pressure discharge lamps; image processing software; metal halide lamps; Acoustic signal detection; Cameras; Frequency modulation; High intensity discharge lamps; Image processing; Optical computing; Optical control; Optical detectors; Optical modulation; Resonance;
Conference_Titel :
Industry Applications Society Annual Meeting, 2009. IAS 2009. IEEE
Conference_Location :
Houston, TX
Print_ISBN :
978-1-4244-3475-6
Electronic_ISBN :
0197-2618
DOI :
10.1109/IAS.2009.5324797
