Glossary
NI PCI-1588 User Manual
G-2
ni.com
clock
hardware component that controls timing for reading from or writing to
groups
D
DAQ
data acquisition—(1) collecting and measuring electrical signals from
sensors, transducers, and test probes or fixtures and inputting them to a
computer for processing; (2) collecting and measuring the same kinds of
electrical signals with A/D and/or DIO devices plugged into a computer,
and possibly generating control signals with D/A and/or DIO devices in the
same computer
DC
direct current
E
ESD
electrostatic discharge
F
frequency
the reciprocal of the period of a signal
front panel
the physical front panel of an instrument or other hardware
H
Hz
hertz—the basic unit of rate, measured in events or oscillations per second
using a frequency counter or spectrum analyzer
I
in.
inch or inches
J
jitter
the rapid variation of a clock or sampling frequency from an ideal constant
frequency
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