Automation System
Sensors:

will be much smarter and more sophisticated in the future
are easily developed
None of these
probably will not improve over the next decade
are not important in automation

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Automation System
Light sensors:

never use infrared light as light source
cannot be used a s limit switches.
come in a wide variety of mounting styles
work in direct sunlight
None of these

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Automation System
What is the process lag?

None of these
The time it takes for the mass of the process to respond to an input change.
All of these
The lag in the error signal when the setpoint is changed.
The time it takes for the sensor to respond to a changed.

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