National Instruments 5411 User Manual

Page 76

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Glossary

DAQArb 5411 User Manual

G-10

© National Instruments Corporation

protocol

the exact sequence of bits, characters, and control codes used to transfer
data between computers and peripherals through a communications
channel, such as the GPIB bus

pts

points

R

RAM

random-access memory

resolution

the smallest signal increment that can be detected by a measurement
system. Resolution can be expressed in bits, in proportions, or in
percent of full scale. For example, a system has 12-bit resolution, one
part in 4,096 resolution, and 0.0244 percent of full scale.

rms

root mean square—the square root of the average value of the square of
the instantaneous signal amplitude; a measure of signal amplitude

ROM

read-only memory

RTSI bus

real-time system integration bus—the National Instruments timing bus
that connects DAQ boards directly, by means of connectors on top of
the boards, for precise synchronization of functions

S

s

seconds

S

samples

sampling rate

the rate, in samples per second (S/s), at which each sample in the
waveform buffer is updated

SCXI

Signal Conditioning eXtensions for Instrumentation—the National
Instruments product line for conditioning low-level signals within an
external chassis near sensors so only high-level signals are sent to DAQ
boards in the noisy PC environment

sequence list

See staging list.

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