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.

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.

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.
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References in periodicals archive ?
An Off state measurement is used to obtain a background flicker effect, while an On State measurement is used to obtain the flicker responsibility of the load.
"There is going to be a flicker effect on our house and the drone noise will affect us."
Also, there is no "flicker effect'' caused by the rotation of the blades, as with horizontal-axis turbines.
Seance (1959), for example, provides one of the first cinematic examples of a flicker effect, predating the work of both Peter Kubelka and Tony Conrad.
A similarly priced Samsung model produced the same flicker effect. Distractions aside, the 3-D picture was clearer than expected and the action on the screen did appear very lifelike.
The yellow and purple contrast colours and asymmetrical design create a flicker effect when travelling through the air to make this the most visible ball in football.
The whole flicker effect has come a long way in the last decade.
The JVC AV-28X10 (100HZ Digipure Pro TV) cinematic flat screen TV scans the picture image twice the rate of a normal TV, supposedly "making the image smoother and reducing flicker effect".
Images on a CRT, on the other hand, need to be refreshed repeatedly, which produces the flicker effect.
Some researchers have stated flicker effect and harmonics to be in direct relation with each other [26], [27].
Other problems that have cropped up with wind power include angry abutters, who often object to a huge monopole being built near their homes; and the flicker effect, when sunlight, bouncing off those spinning turbine blades, creates a light-shadow-light pattern that can bother neighbors at certain times of day.