Page 17 - PNEUMATIC SYSTEM INSTRUMENT

THE PRIMARY LEVELS IN A PNEUMATIC SYSTEM

 Energy supply/Air generation and distribution

 Input elements (sensors)

 Processing elements (processors)

 Final control element (control signals)

 Actuating devices (actuators)

The elements in the system are represented by symbols which

indicate the function of the element. The symbols can be combined to

represent a solution for a particular control task using the circuit

diagram. The circuit is drawn with the same structure as the signal

flow diagram below. At the actuator level, the addition of the control

element completes the structure. The control element controls the

action of the actuator after receiving signals sent by the processor

elements.

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