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STC
switchless device
synchronous
system noise
system RAM
T
TC
T/H
THD
THD+N
throughput rate
transducer
transducer excitation
transfer rate
TRIG1 (EXT_TRIG)
TRIG2 (PRETRIG)
© National Instruments Corporation
system timing controller
devices that do not require dip switches or jumpers to configure resources
on the devices—also called Plug and Play devices
(1) hardware—a property of an event that is synchronized to a reference
clock (2) software—a property of a function that begins an operation and
returns only when the operation is complete
a measure of the amount of noise seen by an analog circuit or an ADC when
the analog inputs are grounded
RAM installed on a personal computer and used by the operating system,
as contrasted with onboard RAM
terminal count—the highest value of a counter
track-and-hold—a circuit that tracks an analog voltage and holds the value
on command
total harmonic distortion—the ratio of the total rms signal due to harmonic
distortion to the overall rms signal, in decibel or a percentage
signal-to-THD plus noise—the ratio in decibels of the overall rms signal to
the rms signal of harmonic distortion plus noise introduced
the data, measured in bytes/s, for a given continuous operation, calculated
to include software overhead.
See sensor
a type of signal conditioning that uses external voltages and currents to
excite the circuitry of a signal conditioning system into measuring physical
phenomena
the rate, measured in bytes/s, at which data is moved from source to
destination after software initialization and set up operations; the maximum
rate at which the hardware can operate
trigger 1 signal
trigger 2 signal
G-17
Glossary
PCI-4451/4452 User Manual
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