All About Optional Automation

June 7, 2010 - PRLog -- It ranges form being mechanical to digital, electromechanical to software. Almost everything comes with a timer from watches to cellular phones, from computers to television.

Xaviera Arata Editor of the  Cheap Hot Tubs  website -- http://www.CheapHotTubs.me -- pointed out;

“…Mechanical timers use mechanisms applied in clocks like escapement and springs in order to pick up the pace when it comes to the speed. If it is inaccurate, these mechanisms are said to be cheap and it is better to use a timer that is able to resist this. An example is the mechanical egg timer…” Added Xaviera Arata

The accurate mechanism of a timer resembles those small alarm clocks. The advantage of these timers is hat they don't need a battery or electricity. They can also be stored for a long time. The most common application of this kind of automation control are bombs and explosives.

The Two types of Electromechanical Timers
1. Thermal type
It has a metal finger that comes with various rates of expansion. The most common are the bronze and steel. The process involves the electric current flowing through and heating it. A side expands making the other side shorter. There is contact on the other end and it moves away from the switch contact. The most common application are the flashers that turn the signals in cars. It is also applied in Christmas lights.

2. Cam Timer
This kind uses a small motor that is synchronous and turns the cam through the switch contacts. This contraption, referred to as the AC motor, is always turned on and by alternating the current, it becomes an accurate rate. Power companies regulate these kinds of timers. This slow the motor to the desired speed and turns the cam on. The most popular application are those in dishwashers, driers and washing machines. This kind of timer comes with a friction clutch between the cam and the gear train. Therefore, the cam can be reset at any time.

Electromechanical timers are really popular because they are less expensive when compared to the mechanical switch conducts. They are also cheaper than those devices that have to be controlled by heaters, motors and power lights.

Before, mechanical timers were used in electric relays in order to guild controllers powered through electro-mechanical contraptions. These electromechanical timers reached a state that were very extensive and eventually were applied in weapons systems and aerospace.

“…Thanks to these electromechanical timers that can be controlled and programmed, launching of sequence events, rockets and missiles were made possible…” Added Xaviera Arata

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