Science

Controls - The Building Blocks of Automation

Learn Science on mps-science.com. Controls - The Building Blocks of Automation article will help answer your questions on Science.We at mps-science.com specialize in Science. Science at mps-science.com provides the most up to date news and articles. If you have questions please do not hesitate to contact us.

Control systems have been developed for machines or processes so as to reduce the chances of failure and to provide the required results.

Basically, there are open loop control systems and close loop control systems.

Open loop systems are those where the controller ac

As man learns to make machines that no longer rely on black bear or human power, he finds that he has to develop some means to manage and control them. Powerful machines let loosed by themselves will create havoc and destruction.

Control systems have been developed for machines or processes so as to reduce the of failure and to provide the required results.

Basically, there are open loop control systems and obscure loop control systems.

Open loop systems are those where the controller fun and games is not related to the final result. This means that there is no feedback to the controller to improve the control action. A simple example is when you fill up a tank using a garden hose. As long as the tap is opened, the water will flow. The height of the water in the tank will not make the tap close.

However, when you see the tank appropriate full and decide to close the tap, you are adding machine the element of feedback to the loop. It then becomes a fanatical loop. But it is a human controlled small-minded loop.

Closed loop systems use feedback from the final result to adjust the control catastrophe accordingly.

But how would you like to stand in one position, watch the process going on and operate valves, or switches in tune to the conditions you want? This is very tiring, isn't it?

Moreover, human beings are prone to fatigue, boredom, and misjudgment. Manual control works very well only if the speed of the response is very slow, and the result is not very critical or important. Human controlled systems can rise very unreliable.

Machines are made to replace humans in most control systems today.

The indispensable feature of any control system consists of 4 elements. These are the measuring element, the controlling element, the set value, and the correcting element.

The measuring element provides a means of detection/measurement of the conditions required. This is the "eyes" or "ears" (or other senses) of the system.

The controlling element is the place where all the decisions on what custom to take are cause made. It can be considered the "brains" of the system. It must make decisions based on real guidelines or values required. The set values are inputted into the system by humans.

The correcting element is where the correction to the process is done. It can be considered like the "hands" or "feet" of the system. It must take insured physical bearing to focus on the processes back to the set value.

Well folks, be in control!

BREAK FREE from computer dependence!

Why use computers when you can read magazines.

Avoid eye strain and fatigue.

More Articles: