National Instruments SCXI -1125 用户手册
Glossary
© National Instruments Corporation
G-3
C
C
Celsius
CE
Conformité Européenne—The European emissions control standard. The
CE mark certifies that a product complies to relevant CE regulations. CE is
a common standard for all countries in the EU (European Union).
CE mark certifies that a product complies to relevant CE regulations. CE is
a common standard for all countries in the EU (European Union).
CH
channel
channel
Pin or wire lead to which you apply or from which you read an analog or
digital signal. Analog signals can be single-ended or differential. For digital
signals, channels group to form ports. Ports usually consist of either four or
eight digital channels.
digital signal. Analog signals can be single-ended or differential. For digital
signals, channels group to form ports. Ports usually consist of either four or
eight digital channels.
chassis
The enclosure that houses, powers, and controls SCXI modules.
CJ TEMP
cold-junction temperature sensor signal
CJC
cold-junction compensation
CLK
clock input signal
CMRR
common-mode rejection ratio—A measure of the capability of an
instrument to reject a signal that is common to both input leads.
instrument to reject a signal that is common to both input leads.
code width
The smallest detectable change in an input voltage of a DAQ device.
cold-junction
compensation
compensation
A method of compensating for inaccuracies in thermocouple circuits.
common-mode voltage
Voltage that appears on both inputs of a differential amplifier.
cutoff frequency
The frequency at which the filter attenuates the input 3 dB, or half of its
original power.
original power.
D
D/A
digital-to-analog
D*/A
data/Address
D GND
digital ground signal