National Instruments DAQ PCI-6023E User Manual page 115

Glossary
input bias current
input impedance
input offset current
instrument driver
instrumentation
amplifier
interrupt
interrupt level
interval scanning
I/O
I
OH
I
OL
IRQ
K
k
K
kS
PCI-6023E/6024E/6025E User Manual
the current that flows into the inputs of a circuit
the resistance and capacitance between the input terminals of a circuit
the difference in the input bias currents of the two inputs of an
instrumentation amplifier
a set of high-level software functions that controls a specific GPIB, VXI,
or RS-232 programmable instrument or a specific plug-in DAQ board.
Instrument drivers are available in several forms, ranging from a function
callable language to a virtual instrument (VI) in LabVIEW.
a circuit whose output voltage with respect to ground is proportional to the
difference between the voltages at its two high impedance inputs
a computer signal indicating that the CPU should suspend its current task
to service a designated activity
the relative priority at which a device can interrupt
scanning method where there is a longer interval between scans than there
is between individual channels comprising a scan
input/output—the transfer of data to/from a computer system involving
communications channels, operator interface devices, and/or data
acquisition and control interfaces
current, output high
current, output low
interrupt request
kilo—the standard metric prefix for 1,000, or 10
measure such as volts, hertz, and meters
kilo—the prefix for 1,024, or 2
computer memory
1,000 samples
10
, used with B in quantifying data or
G-8
3
, used with units of
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