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Glossary
© National Instruments Corporation G-7 SCXI-1530/1531 User Manual
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.
RSVD reserved bit, pin, or signal
RTI referred to input—Calculates a specification relative to the input range.
RTO referred to output
S
s seconds
sample-and-hold a circuit with a sample mode where the output tracks the input and a hold
mode where the output remains at the last known input before switching
modes
scan one or more analog or digital input samples. Typically, the number of input
samples in a scan is equal to the number of channels in the input group. For
example, one pulse from the scan clock produces one scan which acquires
one new sample from every analog input channel in the group.
SCANCLK clock that triggers scanning
scan interval accuracy the minimum interchannel delay needed to achieve a given accuracy
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
SCXIbus located in the rear of an SCXI chassis, the SCXIbus is the backplane that
connects modules in the same chassis to each other
seismic mass a mass that is not mechanically attached to a rigid support and is therefore
free to move
sensor see transducer
SERDATOUT serial data output signal
settling time the amount of time required for a voltage to reach its final value within
specified limits
shunt see auto-zero
signal conditioning the manipulation of signals to prepare them for digitizing