National Instruments NI 6014 User Manual
Page 99
Glossary
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SC
scan counter
scan
one or more analog or digital input samples. Typically, the number of input
samples in a scan is equal to the number of channels in the input group. For
example, one pulse from the scan clock produces one scan which acquires
one new sample from every AI channel in the group.
scan clock
the clock controlling the time interval between scans
settling time
the amount of time required for a voltage to reach its final value within
specified limits
SI
scan interval
SI2
sample interval
signal conditioning
the manipulation of signals to prepare them for digitizing
SISOURCE
SI counter clock signal
software trigger
a programmed event that triggers an event such as data acquisition
SOURCE
source signal
STARTSCAN
start scan signal
STC
system timing controller
T
TC
terminal count—the highest value of a counter
t
gh
gate hold time
t
gsu
gate setup time
t
gw
gate pulse width
THD
total harmonic distortion—the ratio of the total rms signal due to harmonic
distortion to the overall rms signal, in decibel or a percentage
t
off
pulse off
t
out
output delay time