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Glossary
SCXI Chassis User Manual G-2 ni.com
D
D/A digital-to-analog
DAQ data acquisition—(1) collecting and measuring electrical signals from
sensors, transducers, and test probes or fixtures and processing the
measurement data using a computer; (2) 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
F
F (1) Fahrenheit—a temperature measurement scale;
(2) farad—a measurement unit of capacitance
FIFO first-in first-out memory buffer
fuse a protective device that breaks a circuit when a current exceeds a rated value
G
GND ground
H
HDLC high-level data-link control
Hz hertz—cycles per second of a periodic signal
I
I/O input/output—the transfer of data to/from a computer system involving
communications channels, operator interface devices, and/or data
acquisition and control interfaces
IEC International Electrotechnical Commission
in. inch or inches