DAQ VXI-SC-1102 Manual de Instruções descarregar pdf (Página 141)

Glossary

National Instruments Corporation G-11 DAQ Hardware Overview Guide

sample interval An interval that indicates the time to elapse between A/D conversions on

each channel in the sequence.

sample-interval timer A counter that you can use for conversion timing.

sample-interval timer

timebase

A signal used by the sample interval timer for conversion timing. This

signal is only used when the sample interval timer is used.

scan counter A counter used to control the number of scans you acquire.

scan interval pulse A signal that generates a pulse every scan.

scan timer A counter you can use for start scan timing.

scan timer timebase A signal used by the scan timer for scan interval timing.

SCC Signal Conditioning Components

SCMP Signal Conditioning Minipods

SCXI Signal Conditioning eXtensions for Instrumentation; the National

Instruments product line for conditioning low-level signals within an

external chassis near sensors.

self-calibrating A property of a DAQ device that has an extremely stable onboard reference

and calibrates its own A/D and D/A circuits without manual adjustments by

the user.

serial mode See multiplexed mode.

simultaneously sampled during Sample-and-Hold, the input signals are held simultaneously

Single-Ended (SE)

Inputs

An analog input that is measured with respect to a common ground.

software trigger A programmed event that triggers an event such as data acquisition.

S/s Samples per second; used to express the rate at which a DAQ device

samples an analog signal.

start scan A signal that initiates individual scans.

start trigger An edge-triggered signal that initiates a data acquisition sequence.

STC System Timing Controller

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DAQ VXI-SC-1102 Manual de Instruções Página 141