What is electrical, pneumatic and hydraulic control?

ELECTRICAL  

Electrical energy is energy newly derived from electrical potential energy. When loosely used to describe energy absorbed or delivered by an electrical circuit (for example, one provided by an electric power utility) "electrical energy" refers to energy which has been converted from electrical potential energy. This energy is supplied by the combination of electric current and electrical potential that is delivered by the circuit. At the point that this electrical potential energy has been converted to another type of energy, it ceases to be electrical potential energy. Thus, all electrical energy is potential energy before it is delivered to the end-use. Once converted from potential energy, electrical energy can always be described as another type of energy.

Example of electrical circuit

PNEUMATICS

Pneumatic control system is a system which uses air that in compress to generate force / energy to carry out work. Pnuematic term describing fluid systems that use air or gas. Basically liquid and gas can be known from their incompressibility and the fact that the fluid can have a surface load, while the gas expands to fill the flask. Pneumatic system many in find out in system industrial like food industry,petrochemical and industry which uses robotics. Generally pneumatic system need:

• Air supply is compressed
• Control valve
• Tube link
• Transducer induce

The pneumatic control system can be handled human and automatic. These systems may be represented by diagram basic block in figure 1.5a and figure 1.5b.

                    

HYDRAULIC CONTROL SYSTEM

Hydraulic control system is a system which uses fluid to generate force / energy to carry out work. Hydraulic fluid acts as a lubricant, in addition to the thermal carrier. Relatively small-sized hydraulic actuator can build a large force or torque. Hydraulic system many in use in automobile industry like power system, system brake, crane, jack car,satellite and so on. Fluid that commonly used is oil. Generally hydraulic system need :

• Supply fluid is Hydraulic

• Control valve

• Cylinder

The hydraulic control system can be handled human and automatic. These systems may be represented by diagram basic block in Rajah 1.6a and figure 1.6b.