National Instruments NI PXI-7831R User Manual
Page 72
Glossary
© National Instruments Corporation
G-7
R
RAM
Random-access memory—the generic term for the read/write memory that
is used in computers. RAM allows bits and bytes to be written to it as well
as read from. Various types of RAM are DRAM, EDO RAM, SRAM, and
VRAM.
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% of full scale.
RIO
Reconfigurable I/O.
rms
Root mean square.
RSE
Referenced single-ended mode—all measurements are made with respect
to a common reference measurement system or a ground. Also called a
grounded measurement system.
S
s
Seconds.
S
Samples.
S/s
Samples per second—used to express the rate at which a DAQ board
samples an analog signal.
signal conditioning
The manipulation of signals to prepare them for digitizing.
slew rate
The voltage rate of change as a function of time. The maximum slew rate
of an amplifier is often a key specification to its performance. Slew rate
limitations are first seen as distortion at higher signal frequencies.