Справочник Пользователя для National Instruments DAQ 6527
Glossary
G-2
www.ni.com
C
C
Celsius
CAT I
installation category (overvoltage category) I—equipment for which
measures are taken to limit transient overvoltages to an appropriate low
level. Examples include signal-level, telecommunications, and electronic
equipment with transient overvoltages smaller than local-level mains
supplies.
measures are taken to limit transient overvoltages to an appropriate low
level. Examples include signal-level, telecommunications, and electronic
equipment with transient overvoltages smaller than local-level mains
supplies.
cm
centimeters
CompactPCI
refers to the core specification defined by the PCI Industrial Computer
Manufacturer’s Group (PICMG)
Manufacturer’s Group (PICMG)
D
DAQ
data acquisition—a system that uses the personal computer to collect,
measure, and generate electrical signals
measure, and generate electrical signals
DC
direct current
DIG+
positive data terminal
DIG–
negative data terminal
DIO
digital input/output
DMA
direct memory access—a method by which data can be transferred to or
from computer memory from or to a device or memory on the bus while the
processor does something else. DMA is the fastest method of transferring
data to or from computer memory.
from computer memory from or to a device or memory on the bus while the
processor does something else. DMA is the fastest method of transferring
data to or from computer memory.
G
GND
ground reference
H
Hz
hertz