Glossary
NI5102 User Manual G-10 ni.com
input bias current the current that flowsin to the inputs of a circuit
input impedance the measured resistance and capacitance between the input terminal
of a circuit
input offsetcurrent the differencein the input bias currents of t he twoinput so f an
instrumentation amplifier
instrument driver a set of high-level software functions that controls a specific GPIB, VXI,
orRS-2 32 programmable instrument or a specific plug-in DAQdevice.
Instrument driversare available in several forms, ranging from a function
callable language to avirtual instrument (VI) in LabVIEW
interrupt aco mputer signal indicating that the CPU should suspend its current task
to service adesignated activity
interrupt level the relativepriority at which a device can interrupt
intervalscanning scanningmethod where thereis a longer interval between scans than there
is between individualchannels comprising a scan
INTR* interrupt request signal, activelow
IOH current, output high
IOL current, output low
IOS output short circuit current
IRQ interrupt request
ISA industry standard architecture
isolation at ype of signal conditioning in which you isolate the transducer signals
from the computer for safety purposes. This protects you and your
computerfrom large voltage spikes and makes sure the measurements from
the DAQdevice are not affected by differences in ground potentials
isolation voltage the voltagethat an isolated circuit can norm allywi thstand, usually
specifiedfrom input to input and/or from any input to the amplifier output,
or to the computer bus