National Instruments pci-6110e-6111e 用户手册
Glossary
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National Instruments Corporation
G-3
C
C
Celsius
CalDAC
calibration DAC
CH
channel—pin or wire lead to which you apply or from which you
read the analog or digital signal. Analog signals can be single-
ended or differential. For digital signals, you group channels to
form ports. Ports usually consist of either four or eight digital
channels
read the analog or digital signal. Analog signals can be single-
ended or differential. For digital signals, you group channels to
form ports. Ports usually consist of either four or eight digital
channels
cm
centimeter
CMOS
complementary metal-oxide semiconductor
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)
ability to reject interference from a common-mode signal, usually
expressed in decibels (dB)
CONVERT*
convert signal
counter/timer
a circuit that counts external pulses or clock pulses (timing)
CTR
counter
D
D/A
digital-to-analog
DAC
digital-to-analog converter—an electronic device, often an
integrated circuit, that converts a digital number into a
corresponding analog voltage or current
integrated circuit, that converts a digital number into a
corresponding analog voltage or current
DAC0OUT
analog channel 0 output signal
DAC1OUT
analog channel 1 output signal
DAQ
data acquisition—a system that uses the computer to collect,
receive, and generate electrical signals
receive, and generate electrical signals
DAQ-STC
Data acquisition system timing controller. An application-specific
integrated circuit (ASIC) for the system timing requirements of a
integrated circuit (ASIC) for the system timing requirements of a
PCI_E.book Page 3 Thursday, June 25, 1998 12:55 PM