National Instruments Multifunction RIO NI R Series, Руководство пользователя

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Glossary
© National Instruments Corporation G-7 R Series Multifunction RIO User Manual
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 manip
u
lation of signals to prepare them for digitizing.
slew rate The voltage rate of change as a f
u
nction of time. The maxim
u
m slew rate
of an amplifier is often a key specification to its performance. Slew rate
limitations are first seen as distortion at higher signal freq
u
encies.
T
THD Total harmonic distortion—The ratio of the total rms signal d
u
e to
harmonic distortion to the overall rms signal, in decibel or a percentage.
thermoco
u
ple A temperat
u
re sensor created by joining two dissimilar metals. The
j
u
nction prod
u
ces a small voltage as a f
u
nction of the temperat
u
re.
TTL Transistor-transistor logic.
two’s complement Given a n
u
mber x expressed in base 2 with n digits to the left of the radix
point, the (base 2) n
u
mber 2 n – x.
V
V Volts.
VDC Volts direct c
u
rrent.
VHDCI Very high density cabled interconnect.
VI Virt
u
al instr
u
ment—Program in LabVIEW that models the appearance and
f
u
nction of a physical instr
u
ment.
V
IH
Volts, inp
u
t high.
V
IL
Volts, inp
u
t low.