HORIZONTAL DEFLECTION:
■ Time base (TB):
This involves the circuits the oscilloscope which control the sweep the screen.Y4) can displayed with single electron
beam.
■ function
This function that allows display channel (Y1) function another channel (Y2); the time base then
inoperative.
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Choosing your analogue oscilloscope
Block diagram oscilloscope
Y input ugnal
External trigger
Triggering Time base
Xinputtignal
Cathode ray tube
VERTICAL DEFLECTION:
■ Deflection coefficient:
This defined the minimum amplitude (sensitivity) and maximum amplitude accepted the input.
The choice the "time base coefficient" allows display the signals over appropriate duration
■ Alternate Chop display modes
Multiplexing the channels means that several channels (Y1, Y2, . Alternate Mode, each the traces performs full sweep the screen, alternately.OSCILLOSCOPES
Theoretical Introduction
Analogue oscilloscope
DEFINITION:
■ Analogue oscilloscope
This instrument for "qualitative analysis" which can
be used view the waveform periodic electrical
signal function time.
■ Bandwidth (BW):
This the maximum frequency range accepted the oscilloscope (in MHz). For low speeds,
portions the trace are cut for display during given sweep the screen: this called Chop Mode
■ Trigger
This circuit which allows horizontal sweeps and determines the starting point the signal.
■ Rise time (rt):
For square signal (sheer edges), this the time required for the rising edge pass from 10% 90% the "peak-
to-peak" amplitude..
In all cases, alternate triggering enables stable display the traces.
The "trigger level" the voltage level which must reached the signal observed order perform sweep
