Glossary
© National Instruments Corporation G-13 M Series User Manual
NI-DAQmx The latest NI-DAQ driver with new VIs, functions, and development tools
for controlling measurement devices. The advantages of NI-DAQmx over
earlier versions of NI-DAQ include the DAQ Assistant for configuring
channels and measurement tasks for your device for use in LabVIEW,
LabWindows/CVI, and Measurement Studio; increased performance such
as faster single-point analog I/O; and a simpler API for creating DAQ
applications using fewer functions and VIs than earlier versions of
NI-DAQ.
NI-PGIA See instrumentation amplifier.
non-referenced
signal sources
Signal sources with voltage signals that are not connected to an absolute
reference or system ground. Also called floating signal sources. Some
common example of non-referenced signal sources are batteries,
transformers, or thermocouples.
NRSE Non-Referenced Single-Ended mode—All measurements are made with
respect to a common (NRSE) measurement system reference, but the
voltage at this reference can vary with respect to the measurement system
ground.
O
offset The unwanted DC voltage due to amplifier offset voltages added to a signal.
P
PCI Peripheral Component Interconnect—A high-performance expansion bus
architecture originally developed by Intel to replace ISA and EISA. It offers
a theoretical maximum transfer rate of 132 MB/s.
PCI Express A high-performance expansion bus architecture originally developed by
Intel to replace PCI. PCI Express offers a theoretical maximum transfer rate
that is dependent upon lane width. a ×1 link theoretically provides
250 MB/s in each direction—to and from the device. Once overhead is
accounted for, a ×1 link can provide approximately 200 MB/s of input
capability and 200 MB/s of output capability. Increasing the number of
lanes in a link increases maximum throughput by approximately the same
factor.
PCIe See PCI Express.
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