deflection coil

Inside the monitor are what is called deflection coils.

Deflection coils are magnets that tell the beam where to strike the screen's surface.

After exiting the gun, the beam passes through an electromagnetic lens and deflection coil system.

Mind your head--those are the deflection coils.

Deflection coils?

Construction and Characteristics of Deflection Coils.

At this point the electrons lose speed and get deflected by the horizontal and vertical deflection coils, effectively scanning the target.

Dynamic deflection is realized by supplying the deflection coils with currents which can be controlled by the computer.

OM40e dual scan amplifier A twin channel power amplifier designed to drive the OM25 deflection coils.

Extremely low frequency electromagnetic fields (EMF) surround the AC power connection and the vertical deflection coil.

The output waveforms from the timebase amplifiers are fed to the horizontal and vertical deflection coils wrapped around the CRT tube.

By means of a square-wave current applied to deflection coils installed in the SEM column, the electron beam is periodically deflected and intercepted by a suitably-placed aperture.

More specifically, the magnetic field originates from the current in the vertical deflection coil, and the electric field arises from a modulation of the static charge on the screen (Fig. 2.0).

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.

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.

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.

Iams and Rose solved the problem of guiding the beam and keeping it in focus by installing specially designed deflection plates and deflection coils near the charge storage plate to provide a uniform axial magnetic field.

RCA's 1931 prototype television used two UY224 tubes as dynatron oscillators to generate the vertical deflection (28 Hz) and horizontal deflection (2880 Hz) signals for the CRT's deflection coils.

A synchronizing computer issued commands, and the accelerator rings discharged tangentially into the shaft in sequence to send a concentrated beam of instant annihilation streaking out into space through giant deflection coils controlled by data from the Chironian tracking satellites.

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.

"It's certainly not going to have the ELF and VLF fields that come off the deflection coils of the cathode-ray-tube monitors," said Louis Slesin, editor of the newletter VDT News in New York.

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.