Glossary
VXI-SC-1102 User Manual
G-2
©
National Instruments Corporation
ADC
analog-to-digital converter–an electronic device, often an integrated
circuit, that converts an analog voltage to a digital number
amplification
a type of signal conditioning that improves accuracy in the resulting
digitized signal and reduces noise
API
application programming interface
B
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 AT bus,
NuBus, Micro Channel, and EISA bus.
C
C
Celsius
CGND
chassis ground signal
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.
CH<0..31> -
negative input channels 0 through 31
CH<0..31>+
positive input channels 0 through 31
CJSENSOR
cold-junction sensor
cold-junction
a method of compensating for inaccuracies in thermocouple circuits
compensation
D
DAQ
data acquisition–(1) collecting and measuring electrical signals from
sensors, transducers, and test probes or fixtures and inputting them to a
computer for processing; (2) collecting and measuring the same kinds
of electrical signals with A/D and/or DIO boards plugged into a
01Title.book : 12Gloss.frm Page 2 Friday, March 21, 1997 3:40 PM
