National Instruments USB-6210 User Manual page 187

N
NI-DAQmx
NI-PGIA
non-referenced signal
sources
NRSE
O
offset
P
period
PFI
PGIA
physical channel
posttriggering
© National Instruments Corporation
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.
See instrumentation amplifier.
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.
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.
The unwanted DC voltage due to amplifier offset voltages added to a signal.
The period of a signal, most often measured from one zero crossing to the
next zero crossing of the same slope. The period of a signal is the reciprocal
of its frequency (in Hz). Period is designated by the symbol T.
Programmable Function Interface.
Programmable Gain Instrumentation Amplifier.
See channel.
The technique used on a DAQ device to acquire a programmed number of
samples after trigger conditions are met.
G-11
Glossary
NI USB-621x User Manual