The electric, thermal and optical behaviour of an incandescent lamp was studied by a real time laboratory (RTL) apparatus, using two voltage probes and a light probe. The software STELLA was used to model the phenomena and to analyse the transient behaviour in absence of thermal equilibrium. We show how the Joule-heating effect explains the non-linear current/voltage relation and how the filament thermal capacity affects the phase lag of light peaks with respect to input power peaks.
Playing with a bulb lamp: RTL measurements and modelling / Torzo, G.; D'Anna, M.; Pecori, B.. - In: PHYSICS EDUCATION. - ISSN 0031-9120. - ELETTRONICO. - 51:5(2016), pp. 055004.1-055004.11. [10.1088/0031-9120/51/5/055004]
Playing with a bulb lamp: RTL measurements and modelling
PECORI, BARBARA
2016
Abstract
The electric, thermal and optical behaviour of an incandescent lamp was studied by a real time laboratory (RTL) apparatus, using two voltage probes and a light probe. The software STELLA was used to model the phenomena and to analyse the transient behaviour in absence of thermal equilibrium. We show how the Joule-heating effect explains the non-linear current/voltage relation and how the filament thermal capacity affects the phase lag of light peaks with respect to input power peaks.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
