National Instruments BNC -2140 - Manual (Page 27)

Glossary
© National Instruments Corporation G-3 BNC-2140 User Manual
differential input an analog input consisting of two terminals, both of which are isolated from
computer ground, whose difference is measured
differential
measurement system a way you can configure your device to read signals, in which you do not
need to connect either input to a fixed reference, such as the earth or a
building ground
F
F farads—a unit of capacitance
floating signal sources signal sources with voltage signals that are not connected to an absolute
reference or system ground–also called nonreferenced signal sources;
common examples are batteries, transformers, or thermocouples
G
grounded
measurement system See SE .
H
hardware the physical components of a computer system such as the circuit boards,
plug-in boards, chassis, enclosures, peripherals, and cables
I
IC integrated circuit
ICP Integrated Circuit Piezoelectric—identifies products that operate using a
constant current source and return the output signal in the form of voltage
modulation on the same line as the constant current source
in. inches
input bias current the current that flows into the inputs of a circuit
input offset current the difference in the input bias currents of the two inputs of an
instrumentation amplifier