Specifications
63
TV sync
See video sync.
unarmed
In referring to an oscilloscope's trigger section, an unarmed trigger is when the
trigger is not armed. The scope will not trigger in the unarmed state.
vertical attenuator
The attenuator used on a vertical channel of a scope.
vertical gain
The gain setting of the vertical amplifier. Usually given in volts per graticule
division. Changing the vertical gain determines the vertical extent of a
waveform on the screen.
vertical sensitivity
The signal level required to cause a single division of vertical deflection. For
example, for a vertical gain (attenuator) setting of 1 V/div, a 1 V peak-to-peak
signal will be one division high on the oscilloscope's screen.
video sync
A triggering method to synchronize with television signals to allow the scope to
view and measure signal characteristics.
Sometimes referred to as TV sync. This feature allows vertical (TV V) or
horizontal (TV H) video sync pulses to be selected for triggering. Vertical sync
pulses are selected to view vertical fields or frames of video and horizontal
sync pulses are selected for viewing horizontal lines of video.
WaveXpress®
A B&K Precision software tool that can create and modify waveforms. The
software can communicate with B&K scopes and arbitrary waveform
generators to upload and download waveforms for experimentation. The tool
can be downloaded from http://www.bkprecision.com/wavexpress.html.
x-axis
The horizontal (time) axis of the oscilloscope. It is also called the x-axis in XY
display mode.
XY display
An oscilloscope display mode where two voltage signals are displayed
simultaneously. One voltage signal drives the horizontal position (x-axis) and
the other signal drives the vertical position (y-axis).
y-axis
The vertical (voltage) axis of the oscilloscope.
z-axis
In some scopes (predominantly analog scopes), the z-axis input can be used
to control the intensity of the electron beam. This allows specialized display
capabilities. For example, a third parameter can be used to modulate the
intensity of a trace, transmitting more information to the user. In XY display
mode, the z-axis input can be used to cause dots to appear on the screen as
the beam sweeps across the screen.
This is essentially the mechanism of how
an analog television works.
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