Glossary
©
National Instruments Corporation
G-5
NI PXI-1031/PXI-1031DC User Manual
NI-DAQmx
National Instruments driver that controls the operation of National
Instruments data acquisition (DAQ) devices
NI-VISA
National Instruments implementation of the VISA (Virtual Instrument
System Architecture) I/O standard. NI-VISA provides support for the
VISA API, and also provides VISAIC, a utility for instrument
configuration and I/O function execution.
ns
Nanosecond, one billionth of a second (10
–9
)
P
ppm
Parts-per-million
PXI
PCI eXtensions for Instrumentation. PXI is an implementation of
CompactPCI with added electrical features that meet the high performance
requirements of instrumentation applications by providing triggering, local
buses, and system clock capabilities.
PXI_CLK10
10 MHz PXI system reference clock
R
RMS
Root mean square
S
s
Seconds
skew
Deviation in signal transmission times
slot blocker
An assembly installed into an empty slot to improve the airflow in adjacent
slots
ST
Star trigger
standby
The backplane is unpowered (off), but the chassis is still connected to
AC power mains.