Glossary
SCXI-1502 User Manual
G-2
ni.com
AI GND
Analog input ground signal.
AI +
Positive analog output channel number signal.
AI # +
Positive input channel number signal.
AI # –
Negative input channel number signal.
AI HOLD COMP,
AI HOLD
Scan clock signal used to increment to the next channel after each DAQ
device analog-to-digital conversion.
amplification
A type of signal conditioning that improves accuracy in the resulting
digitized signal by increasing signal amplitude relative to noise.
AO #
Data acquisition device analog output channel number.
AO # +
Positive output channel number signal.
AO # –
Negative output channel number signal.
AO GND
(DAQ and SCXI) analog output ground signal.
AO REF
Analog output reference.
B
bandwidth
The range of frequencies present in a signal, or the range of frequencies to
which a measuring device can respond.
bias current
The small input current flowing into or out of the input terminals of an
amplifier.
bit
One binary digit, either 0 or 1.
bus
The group of conductors that interconnect individual circuitry in a
computer. Typically, a bus is the expansion interface to which I/O or other
devices are connected. Examples of a PC bus is a PCI bus.
C
C
Celsius.
CE
European emissions control standard.