National Instruments NI 4050 Benutzerhandbuch
Glossary
G-2
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ADC
analog-to-digital converter—an electronic device, often an integrated
circuit, that converts an analog voltage to a digital number
circuit, that converts an analog voltage to a digital number
ADC resolution
the resolution of the ADC, which is measured in bits. An ADC with16 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.
ADE
Application Development Environment
amplification
a type of signal conditioning that improves accuracy in the resulting
digitized signal and reduces noise
digitized signal and reduces noise
amplitude flatness
a measure of how close to constant the gain of a circuit remains over a range
of frequencies
of frequencies
aperture time
the period of time over which a measurement is averaged; also called the
number of powerline cycles
number of powerline cycles
attenuate
to reduce in magnitude
autozero
technique of internally shorting the internal circuit while disconnecting the
measurement to compensate for temperature effects
measurement to compensate for temperature effects
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.
bus
the group of conductors that interconnect individual circuitry in a computer.
Typically, a bus is the expansion vehicle to which I/O or other devices are
connected. Examples of PC buses are the PCI and ISA bus.
Typically, a bus is the expansion vehicle to which I/O or other devices are
connected. Examples of PC buses are the PCI and ISA bus.
burden voltage
the voltage drop across the input section of the current mode
C
C
Celsius
CMRR
common-mode rejection ratio—a measure of an instrument’s ability to
reject interference from a common-mode signal, usually expressed in
decibels (dB)
reject interference from a common-mode signal, usually expressed in
decibels (dB)