flicker effect

flicker effect

[′flik·ər i‚fekt]

(electronics)

Random variations in the output current of an electron tube having an oxide-coated cathode, due to random changes in cathode emission.

McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.

flicker effect

Nausea, dizziness, or vertigo that can be brought on by flickering at certain frequencies of a bright light source, such as sunlight or a strobe, when viewed through a rotating propeller or rotor blades.

An Illustrated Dictionary of Aviation Copyright © 2005 by The McGraw-Hill Companies, Inc. All rights reserved

The following article is from The Great Soviet Encyclopedia (1979). It might be outdated or ideologically biased.

Flicker Effect

 

slow fluctuations of the electric currents and voltages in vacuum-tube and gas-filled electronic devices. Such fluctuations are caused by the vaporization of atoms of the cathode material, the diffusion of atoms from deep layers of the cathode to its surface, the bombardment of the cathode with positive ions, and structural changes in the cathode. The bombardment of the cathode with positive ions results in ion implantation and the formation of a layer of foreign atoms on the cathode’s surface. A space charge partially suppresses the flicker effect.

The Great Soviet Encyclopedia, 3rd Edition (1970-1979). © 2010 The Gale Group, Inc. All rights reserved.