Glossary
©
National Instruments Corporation
G-5
DAQMeter DAQCard-4050 User Manual
F
filtering
a type of signal conditioning that allows you to filter unwanted signals
from the signal you are trying to measure
ft
feet
G
gain
the factor by which a signal is amplified, sometimes expressed in
decibels
H
harmonics
multiples of the fundamental frequency of a signal
half-power bandwidth
the frequency range over which a circuit maintains a level of at least
-3 dB with respect to the maximum level
hardware
the physical components of a computer system, such as the circuit
boards, plug-in boards, chassis, enclosures, peripherals, cables, and so
on
hex
hexadecimal
Hz
hertz—per second, as in cycles per second or samples per second
I
IBM
International Business Machines
IC
integrated circuit
ID
identification
IEC
International Electrotechnical Commission
IEEE
Institute of Electrical and Electronics Engineers
in.
inches
input bias current
the current that flows into the inputs of a circuit