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6023E/6024E/6025E User Manual G-10 ni.com
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.
RTSI bus real-time system integration bus—the National Instruments timing bus that
connects DAQ devices directly, by means of connectors on top of the
devices, for precise synchronization of functions
S
s seconds
S samples
sample counter the clock that counts the output of the channel clock, in other words, the
number of samples taken. On boards with simultaneous sampling, this
counter counts the output of the scan clock and hence the number of scans.
scan oneor more analog samples taken atthe same time,or nearly thesame time.
Typically, the number of input samples in a scan is equal to the number of
channels in the input group. For example, one scan, acquires one new
sample from every analog input channel in the group.
scan clock the clock controlling the time interval between scans.
scan rate the number of scans a system takes during a given time period, usually
expressed in scans per second
SCXI Signal Conditioning eXtensions for Instrumentation
SE single-ended—a term used to describe an analog input that is measured
with respect to a common ground
self-calibrating a property of a DAQ board that has an extremely stable onboard reference
and calibrates its own A/D andD/A circuits without manual adjustments by
the user
sensor a device that converts a physical phenomenon into an electrical signal
settling time the amount of time required for a voltage to reach its final value within
specified accuracy limits
signal conditioning the manipulation of signals to prepare them for digitizing