The charged droplets pass through another electrostatic field and are directed ( deflected ) by electrostatic deflection plates to print on the receptor material ( substrate ), or allowed to continue on undeflected to a collection gutter for re-use.
22.
The output of the mixer was sent to the Y-axis deflection plates in a specially designed high-quality CRT . For reasons not well explained in the literature, this was arranged to deflect the beam downward with increasing signal.
23.
The X and Y deflection plates were connected to amplifiers that converted memory locations into X and Y positions on the screen, in most cases such that positions along the X axis represented individual bits within a word, while Y locations were different words.
24.
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.
25.
As well, their outputs ( plates / anodes ) were likewise connected to another tapped delay line, its output feeding the deflection plates . ( This amplifier was push-pull, so there were four delay lines, two for input, and two for output .)
26.
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.
27.
Another technique developed by the BBC known as'spot wobble'involved the addition of an extremely high frequency but low voltage sine wave to the vertical deflection plate of the television screen, which changed the moving'spot'through which the television picture was displayed into an elongated oval.
28.
This is the purpose of the time base generator, which is attached to one of the set of deflection plates, normally the X axis, while the amplified output of the radio signal is sent to the other axis, normally Y . The result is a visual re-creation of the original waveform.
29.
These were used to bend the beam through an angle and cause it to hit the front face of the screen . 2D scanning was accomplished by charging two of the horizontal plates to select a vertical location on the display, and then quickly charging the deflection plates at the top in turn to select a horizontal location.
30.
But eventually, you'll be overloading the input stages of the vertical deflection subsystem in order to get enough signal through to the deflection plates . ( Our Equalization article discusses this principle . ) For a digital scope, there's probably a " brick wall " filter ahead of the sampling system and you can't beat the Nyquist frequency of the sampler in any case.
