National Instruments NI USB-621x - Manual (Page 20)

© National Instruments Corporation 2-1 NI USB-621x User Manual
2
DAQ System Overview
Figure 2-1 shows a typical DAQ system, which includes sensors,
transducers, signal conditioning devices, cables that connect the various
devices to the accessories, the M Series device, programming software, and
PC. The following sections cover the components of a typical DAQ system.
Figure 2-1. Components of a Typical DAQ System
DAQ Hardware
DAQ hardware digitizes signals, performs D/A conversions to generate
analog output signals, and measures and controls digital I/O signals.
Figure 2-2 features components common to all USB M Series devices.
Personal Computer
or Laptop
DAQ
Hardware
DAQ
Software