Tektronix, Inc. P6240, Руководство пользователя

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Glossary
Glossary–4
TLS 216 User Manual
Envelope acquisition mode
A mode in which the logic scope acquires and displays a waveform that
shows the variation extremes of several acquisitions.
Fall time
A measurement of the time it takes for trailing edge of a pulse to fall from a
HighRef value (typically 90%) to a LowRef value (typically 10%) of its
amplitude.
Frequency
A timing measurement that is the reciprocal of the period. Measured in Hertz
(Hz) where 1 Hz = 1 cycle per second.
Gated Measurements
A feature that lets you limit automated measurements to a specified portion
of the waveform. You define the area of interest using the vertical cursors.
General purpose knob
The large front-panel knob with an indentation. You can use it to change the
value of the assigned parameter.
Glitch positive trigger
Triggering occurs if the logic scope detects positive spike widths less than
the specified glitch time.
Glitch negative trigger
Triggering occurs if the logic scope detects negative spike widths less than
the specified glitch time.
GPIB (General Purpose Interface Bus)
An interconnection bus and protocol that allows you to connect multiple
instruments in a network under the control of a controller. Also known as
IEEE 488 bus. It transfers data with eight parallel data lines, five control
lines, and three handshake lines.
Graticule
A grid on the display screen that creates the horizontal and vertical axes. You
can use it to visually measure waveform parameters.
Group
Also called a waveform group. A collection of channels that can be
displayed a group of waveforms, a bus (called a BusForm) of waveforms, or
a timing diagram of waveforms. The logic scope provides up to eight groups
of up to 16 channels. Channels must be defined to be part of a group to be
displayed.
Hardcopy
An electronic copy of the display in a format useable by a printer or plotter.