deflection coil การใช้

• After exiting the gun, the beam passes through an electromagnetic lens and deflection coil system.
• Dynamic deflection is realized by supplying the deflection coils with currents which can be controlled by the computer.
• At this point the electrons lose speed and get deflected by the horizontal and vertical deflection coils, effectively scanning the target.
• :: This gets me thinking though . . . is the actual source of sound the deflection coils or the gun itself?
• The deflection coils were positioned around the aperture, so by having both beams pass by the deflection coils while superimposed, the deflection of both was equal.
• The deflection coils were positioned around the aperture, so by having both beams pass by the deflection coils while superimposed, the deflection of both was equal.
• In a conventional magnetically deflected CRT, such as in a TV receiver or computer monitor, basically the vertical deflection coils are equivalent to coils wound around an horizontal axis.
• In a magnetically focused camera tube ( there are electrostatically focused vidicons ), the vertical deflection coils are above and below the tube, instead of being on both sides of it.
• Cells were selected by using the deflection coils in the CRT to pull the beam into position in front of the cell, lighting up the front of the tube in that location.
• Still, I'm just picking a nit here; soft X-rays aren't much of a risk from most modern CRTs and electromagnetic emssions from the deflection coils are likely no risk at all.
• Initially apprentices typically spent 3 to 4 months working on production lines producing components for radios and TV s such as transformers, deflection coils, printed circuit boards, 13 channel tuners and various other sub-assemblies.
• The lens is used for producing either a focused or defocused beam spot on the workpiece, while the deflection coil is used to either position the beam spot on a stationary location or provide some form of oscillatory motion.
• Electron beam tomography ( EBT ) is a specific form of CT in which a large enough X-ray tube is constructed so that only the path of the electrons, travelling between the cathode and anode of the X-ray tube, are spun using deflection coils.
• According to the page on Cathode ray tube, there does not seem to be a significant difference between those used in TVs and those used in monitors, althogh the inductance of the monitor deflection coils may need to be lower to allow faster scanning than the 62us ( or thaereabouts ) per line as in Tvs.