A closed loop system is identied by a feedback loop. It can be described as
a system where there is a possibility of applying corrective measures if the
output is not quite what is wanted. A good example of this in a vehicle is an
automatic temperature control system (Figure 3.5). The interior temperature of
the vehicle is determined by the output from the heater, which is switched on
or off in response to a signal from a temperature sensor inside the cabin. The
feedback loop is the fact that the output from the system, temperature, is also
an input to the system.
The feedback loop in ...
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