deflection yoke การใช้

• These focus coils are essentially as long as the tubes themselves, and surround the deflection yoke ( coils ).
• These active compensation circuits use the deflection yoke to finely adjust beam deflection according to the beam target location.
• The rotating deflection yoke was an advantage for naval use, where multiple displays were provided for the same radar set.
• MBS resins are used in strengthening polyvinyl chloride materials, while magnetic wires are used in deflection yokes in colour televisions.
• In detail, scanning of CRTs is performed by magnetic deflection, by changing the current in the coils of the deflection yoke.
• The electron current sweep is aimed using wound copper coil magnetic deflection yokes, as in a cathode ray tube ( CRT ).
• A "'deflection yoke "', is a kind of magnetic lens, used in cathode ray tubes that are used to deflecting it vertically and horizontally.
• LG Group, through LG Electronics, set up PT LG Electronic Display Devices Indonesia in 1995 to produce electron guns, monitors, deflection yokes and flybacks.
• The circular " bulls-eyes " in the centre and the four corners permitted uniform deflection yoke and oscillator amplitude adjustments for centering, pincushioning, and image size.
• The plant will now have an annual production capacity of 6 million tuners, 9 million deflection yokes and 10 million fly-back transformers _ all components used in television sets.
• Furthermore, wide-deflection-angle CRTs need horizontal sweeps with current that changes proportionally faster toward the center, because the center of the screen is closer to the deflection yoke than the edges.
• Electronically, the inductance of the deflection yoke's vertical windings is relatively high, and thus the current in the yoke, and therefore the vertical part of the magnetic deflection field, can change only slowly.
• It uses a wide-angle electrostatically-deflected CRT that is about as compact as a magnetic-deflection CRT . Instead of the deflection plates of a typical CRT, it has a unique structure called an electrostatic deflection yoke, with metallized electrodes inside a glass cylinder.
• In electronics, these ( usually steady-rate ) movements of the beam [ s ] are called " sweeps ", and the circuits that create the currents for the deflection yoke ( or voltages for the horizontal deflection plates in an oscilloscope ) are called the sweep circuits.
• That axis is perpendicular to the neck of the tube; lines of force are basically horizontal . ( In detail, coils in a deflection yoke extend some distance beyond the neck of the tube, and lie close to the flare of the bulb; they have a truly distinctive appearance .)
• However, the entire structure of the cathode, deflection yokes, anode and overall vacuum tube size is much larger, therefore made out of steel, not glass, with the main central open midsection of the vacuum tube hollow, leaving room for the scan table and object or person to lie while the scan is performed.
• The solution to the static convergence and purity problems is a set of color alignment magnets installed around the neck of the CRT . These movable weak permanent magnets are usually mounted on the back end of the deflection yoke assembly and are set at the factory to compensate for any static purity and convergence errors that are intrinsic to the unadjusted tube.