Solenoid Actuator, Linear Actuators, Push Pull Actuator Solenoid Driven Actuator

Solenoid ActuatorA solenoid actuator is an example of electromechanical transducer, which transforms an input electric signal into a motion. Solenoid actuator, considered here, consists of a coil enclosed into a ferromagnetic core with a moving part - plunger inside. Actuator design requires calculation of the magnetic field and a force, applied to the plunger.







Actuator Solenoid

The Solenoid

actuators_solonoid magnetic field

How Solenoids Work


Push and Pull Type Solenoids

Powering a Solenoid



Actuator Solenoid Valves

Mechanical Considerations

solenoid push pull Pull Push Solenoid Mechanism

What is an Actuator?

Put simply, an actuator is something that converts energy into motion. It can also be used to apply a force. An actuator typically is a mechanical device that takes energy, usually created by air, electricity, or liquid, and converts that into some kind of motion. That motion can be anything from blocking to clamping to ejecting. Actuators are typically used in manufacturing or industrial applications and may be used in things like motors, pumps, switches, and valves.

Perhaps the most common type of actuator is powered by air — the pneumatic cylinder, also known as the air cylinder. Air cylinders are air-tight cylinders, typically made from metal, that use the energy of compressed air to move a piston. Air cylinders are most commonly used in manufacturing and assembly processes. Grippers, which are used in robotics, use actuators driven by compressed air to work much like human fingers

Actuators can also be powered by electricity or hydraulics. Much like there are air cylinders, there are also electric cylinders and hydraulic cylinders where the cylinder converts electricity or hydraulics into motion. Hydraulic cylinders are often used in certain types of vehicles.

Many actuators have more than one type of power source. Solenoid valves, for example, can be powered by air and electricity. Electricity powers the solenoid, and the solenoid, powered by air, actuates the valve. Alternatively, the solenoid can be powered by hydraulics and electricity.

Actuators can create a linear motion, rotary motion, or oscillatory motion. That is, they can create motion in one direction, in a circular motion, or in opposite directions at regular intervals. Hydraulic and air cylinders can be classified as single acting, meaning that the energy source causes movement in one direction and a spring is used for the other direction. Alternatively, these cylinders can be double acting cylinders, meaning the energy is used in two directions.

While actuators are typically discussed in terms of mechanical implements, muscles are sometimes given as an example of an actuator. Energy (e.g., created by eating carbohydrates) is converted by the muscle (i.e., the actuator) into motion (e.g., kicking a ball).

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