Chapter 2 DAQ System Overview
M Series User Manual 2-4 ni.com
it. The manipulation of signals to prepare them for digitizing is called
signal conditioning.
For more information about sensors, refer to the following documents.
• For general information about sensors, visit
ni.com/sensors.
• If you are using LabVIEW, refer to the LabVIEW Help by selecting
Help»Search the LabVIEW Help in LabVIEW and then navigate to
the Taking Measurements book on the Contents tab.
• If you are using other application software, refer to Common Sensors
in the NI-DAQmx Help or the LabVIEW Help in version 8.0 or later.
Signal Conditioning Options
SCXI
SCXI is a front-end signal conditioning and switching system for various
measurement devices, including M Series devices. An SCXI system
consists of a rugged chassis that houses shielded signal conditioning
modules that amplify, filter, isolate, and multiplex analog signals from
thermocouples or other transducers. SCXI is designed for large
measurement systems or systems requiring high-speed acquisition.
System features include the following.
• Modular architecture—Choose your measurement technology
• Expandability—Expand your system to 3,072 channels
• Integration—Combine analog input, analog output, digital I/O, and
switching into a single, unified platform
• High bandwidth—Acquire signals at high rates
• Connectivity—Select from SCXI modules with thermocouple
connectors or terminal blocks
Note SCXI is not supported on PCI-6221 (37-pin) or all variants of USB-622x/625x
devices.
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