National Instruments NI 1712 User Manual - page 82
NI 17xx User Manual
© National Instruments
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G-3
N
NI-IMAQ
Driver software for National Instruments image acquisition
devices and NI 17xx Smart Cameras. NI-IMAQ is installed as
part of NI Vision Acquisition Software.
O
open collector
An output mechanism that grounds or does not ground a
connection to a powered device. An open collector output cannot
supply voltage.
opto-coupled Optically
coupled.
optically coupled
An input mechanism that provides current protection by using a
light emitter to transmit signals to a light receiver, which then
enables a signal current.
P
pixel pitch
The distance between the centers of adjacent pixels in either the
horizontal or vertical direction.
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.
R
reference card
An object of a solid, neutral color (typically gray) in the image
which functions as a reference during image correction.
rising edge
The digital signal transition from the low state to the high state.
RS-232
Standard electrical interface for serial data communications.