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velocity modulation

   Also found in: Acronyms, Encyclopedia 0.01 sec.
velocity modulation
n
(Physics / General Physics) the modulation in velocity of a beam of electrons or ions caused by passing the beam through a high-frequency electric field, as in a cavity resonator


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The next tongue twister we had to contend with was InfiniFocus HD CRTs, which turned out to refer to the much-evolved cathode ray tube that, with its longer neck, higher-performance scan velocity modulation, and improved electronic gun, runs rings around standard tubes.
Delivering 1280 horizontal lines of resolution, the sets offer even a deeper level of fine tuning that include adjustable color temperature and selectable advanced scan velocity modulation and black level expansion.
User-Selectable Scan Velocity Modulation: Hitachi's new selectable scan velocity modulation feature gives users the option of engaging the function, which accentuates the picture edge definition between light and dark areas.
 
 
 
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