National Instruments NI 6602 User Manual page 51

current sinking
current sourcing
D
DAQ
DAQ-STC
DC
decode
device
DIO
DLL
© National Instruments Corporation
The ability of a DAQ board to dissipate current for analog or digital output
signals.
The ability of a DAQ board to supply current for analog or digital output
signals.
data acquisition
Collecting and measuring electrical signals from sensors, transducers, and
test probes or fixtures and inputting them to a computer for processing.
Collecting and measuring the same kinds of electrical signals with A/D
and/or DIO boards plugged into a computer, and possibly generating
control signals with D/A and/or DIO boards in the same computer.
A custom ASIC developed by National Instruments that provides timing
information and general-purpose counter/timers on National Instruments
E Series boards.
direct current
Used in the context of motion encoders. The two channels of a motion
encoder indicate information about movement and direction of movement
of an external device. Decoding refers to extracting this information from
the signals on these channels.
A plug-in data acquisition board, card, or pad that can contain multiple
channels and conversion devices. Plug-in boards, PCMCIA cards, and
DAQ devices that connect to your computer parallel port, are all examples
of DAQ devices.
digital input/output
dynamic link library—a software module in Microsoft Windows
containing executable code and data that can be called or used by Windows
applications or other DLLs. Functions and data in a DLL are loaded and
linked at run time when they are referenced by a Windows application or
other DLLs.
G-3
Glossary
NI 660x User Manual