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Glossary
© National Instruments Corporation G-3 NI 17xx Smart Camera User Manual
N
NI-IMAQ Driver software for National Instruments image acquisition devices and
smart cameras.
P
PLC Programmable Logic Controller. An industrial computer used for factory
automation, process control, and manufacturing systems.
pulse train A signal consisting of a series of continuous pulses.
Q
quadrature encoder An encoding technique for a rotating device where two tracks of
information are placed on the device, with the signals on the tracks offset
by 90 degrees from each other. The phase difference indicates the position
and direction of rotation.
R
rising edge The digital signal transition from the low state to the high state.
RS-232 Standard electrical interface for serial data communications.
S
sensor resolution The number of columns and rows of CCD pixels in the camera sensor.
sensor size The size of the active area of an image sensor.
subnet A set of systems whose IP addresses are configured such that they can
communicate directly with one another. Data will not flow through an
intermediate router.
SXGA sensor Super eXtended Graphics Array sensor. Image sensor that features a
resolution of 1,280 × 1,024 pixels.
syntax Set of rules to which statements must conform in a particular programming
language.