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26 A. TUNÇER, G.T. TAYYAR and Y. ÜNSAN
Figure 4.3 Actuator assembly [13]
5. Control Systems
Automatic control or operation of a process can be defined by the term automation [17]. First
automated control system, as seen in Figure 5.1, was installed on Watts’ steam engine in 1775, a
flyball governor was connected to the shaft and by the rotational speed flyballs move up or
down thus decreasing or increasing the inlet volume of steam supply valve to adjust shaft speed
to a certain level. [18]
GiDB|DERGi Sayı 7, 2016
