What is Contact bounce ?
When a switch is actuated and contacts touch one another under the force of actuation, they are supposed to establish continuity in a single, crisp moment. Unfortunately, though, switches do...
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Electrical Contactor, Switch, Circuit Breaker
An Electrical Contactor is a switch. In simple words contactor is a switch which closes its contacts with the help of relay. Most of the contactors operate by electromagnet, thus...
Zero Speed Switch Working Principle
Monitoring Speed is essential in any automation process. Speed of any equipment driven by an electric motor can very due to variety of reasons e.g. overload, underload, breakage of transmission...
Pull Up and Pull Down Switch Circuits
Switches are simplest of all input devices. The Digital Input Card monitors the two states of the switch by measuring the voltage on the sense circuit. There are two types of...
Differential Pressure Switch Working Principle
A Differential Pressure Switch, just like a regular pressure switch, is a simple electro-mechanical device that operates on the basic principles of levers and opposite forces. Mainly, they are used for...
Switch or Transmitter
For decades, process instrumentation specifiers have faced the decision whether to use a switch or a continuous transmitter for a given application. Either type of instrument can be used to...