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N
NI-DAQmx
noise
normal mode
voltage
O
OUT
P
PCI
PFI
PGA
port
ppm
PXI
PXI trigger bus
© National Instruments Corporation
The latest NI-DAQ driver with new VIs, functions, and development tools
for controlling measurement devices.
An undesirable electrical signal—Noise comes from external sources such
as the AC power line, motors, generators, transformers, fluorescent lights,
soldering irons, CRT displays, computers, electrical storms, welders, radio
transmitters, and internal sources such as semiconductors, resistors, and
capacitors. Noise corrupts signals you are trying to send or receive.
Voltage that occurs in the case of interference between two conductors of a
circuit.
Output pin—A counter output pin where the counter can generate various
TTL pulse waveforms.
Peripheral component interconnect.
Programmable function input.
Programmable gain amplifier.
(1) A communications connection on a computer or a remote controller;
(2) a digital port, consisting of four or eight lines of digital input and/or
output.
Parts per million.
PCI eXtensions for Instrumentation—An open specification that builds on
the CompactPCI specification by adding instrumentation-specific features.
The timing bus that connects PXI DAQ devices directly, by means of
connectors built into the backplane of the PXI chassis, for precise
synchronization of functions. This bus is functionally equivalent to the
RTSI bus for PCI DAQ devices.
G-7
Glossary
NI PXI-4224 User Manual
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