See Also: Poulsen arc(dictionary)

Poulsen arc (iou)



Poulsen arc noun phr. obsolete exc. Hist. E20.
[from Valdemar Poulsen (1869-1942), Danish electrical engineer.]
An arc discharge between a carbon electrode and a water-cooled copper electrode in a hydrogen or hydrocarbon vapour atmosphere and a strong magnetic field, formerly used in the generation of short-wave radio waves.