Flickering lamps
- Abstract
Many processes in electromagnetism vary with time. Some of them are well known, in particular those related to line frequencies of 50 Hz or 60 Hz such as fluctuating light output of discharge and incandescent lamps. The flickers of discharge and incandescent lamps have quite different physical principles involved, which are investigated experimentally using high-speed cameras and theoretically using simplified models. The topic is related to other phenomena such as the transientAbstract
Many processes in electromagnetism vary with time. Some of them are well known, in particular those related to line frequencies of 50 Hz or 60 Hz such as fluctuating light output of discharge and incandescent lamps. The flickers of discharge and incandescent lamps have quite different physical principles involved, which are investigated experimentally using high-speed cameras and theoretically using simplified models. The topic is related to other phenomena such as the transient behaviour of phosphor layers covering the screen of oscilloscopes and the time-varying Lorentz force acting on the filament of light bulbs. All studies are well suited for teaching selected aspects of electromagnetism and light at undergraduate level at university.…
Author: | Michael VollmerGND, Klaus-Peter MöllmannGND |
---|---|
DOI: | https://doi.org/10.1088/0143-0807/36/3/035027 |
Parent Title (English): | European Journal of Physics 36 (2015) 3 |
Document Type: | Article |
Language: | English |
Year of Publishing: | 2015 |
Date of Publication (online): | 2015/12/15 |
Release Date: | 2015/12/15 |
First Page: | 035027 |
Institutes: | Fachbereich Technik |
Dewey Decimal Classification: | Naturwissenschaften und Mathematik / Physik / Physik |
University Bibliography: | Hochschulbibliografie |
Licence (German): | ![]() |