National Instruments Welding System 321645c-01 Manual De Usuario
NI-DAQ FRM for PC Compatibles)
G-2
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National Instruments Corporation
Glossary
A/D
analog-to-digital
ADC
A/D converter
ADC resolution
the resolution of the ADC, which is measured in bits. An ADC with 16 bits
has a higher resolution, and thus a higher degree of accuracy, than a 12-bit
ADC.
has a higher resolution, and thus a higher degree of accuracy, than a 12-bit
ADC.
address
character code that identifies a specific location (or series of locations)
in memory
in memory
AI
Analog Input
alias
a false lower frequency component that appears in sampled data acquired
at too low a sampling rate
at too low a sampling rate
AMUX
AMUX-64T
API
application programming interface
asynchronous
(1) hardware—a property of an event that occurs at an arbitrary time,
without synchronization to a reference clock (2) software—a property of
a function that begins an operation and returns prior to the completion or
termination of the operation
without synchronization to a reference clock (2) software—a property of
a function that begins an operation and returns prior to the completion or
termination of the operation
attenuate
to decrease the amplitude of a signal
B
b
bit—one binary digit, either 0 or 1
B
byte—eight related bits of data, an eight-bit binary number. Also used to
denote the amount of memory required to store one byte of data.
denote the amount of memory required to store one byte of data.
base address
a memory address that serves as the starting address for programmable
registers. All other addresses are located by adding to the base address.
registers. All other addresses are located by adding to the base address.
BCD
binary-coded decimal
binary
a number system with a base of 2
bipolar
a signal range that includes both positive and negative values (for example,
–5 V to +5 V)
–5 V to +5 V)