National Instruments SCXI -1125 用户手册
Glossary
G-2
ni.com
A
A/D
analog-to-digital
absolute accuracy
The maximum difference between the measured value from a data
acquisition device and the true voltage applied to the input, typically
specified as ±
acquisition device and the true voltage applied to the input, typically
specified as ±
voltage.
AC
alternating current
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.
ADE
application development environment—A software environment
incorporating the development, debug, and analysis tools for software
development.
incorporating the development, debug, and analysis tools for software
development.
AI GND
analog input ground
AI HOLD COMP,
AI HOLD
AI HOLD
clock that triggers scanning
amplification
A type of signal conditioning that improves accuracy in the resulting
digitized signal by increasing signal amplitude relative to noise.
digitized signal by increasing signal amplitude relative to noise.
autozero
A procedure for eliminating offsets generated by an amplifier stage.
B
bandwidth
The range of frequencies present in a signal, or the range of frequencies to
which a measuring device can respond.
which a measuring device can respond.
bias current
The small input current flowing into or out of the input terminals of an
amplifier.
amplifier.
bit
one binary digit, either 0 or 1
BNC
Bayonet-Neill-Concelman—A type of coaxial connector used in situations
requiring shielded cable for signal connections and/or controlled
impedance applications.
requiring shielded cable for signal connections and/or controlled
impedance applications.