What type of energy conversion is observed in a linear solenoid ?
Answers
Explanation:
A “Linear Solenoid” is an electromagnetic device that converts electrical energy into a mechanical pushing or pulling force or motion.
Explanation:
The linear solenoid works on the same basic principal as the electromechanical relay seen in the previous tutorial and just like relays, they can also be switched and controlled using bipolar transistors or MOSFET’s. A “Linear Solenoid” is an electromagnetic device that converts electrical energy into a mechanical pushing or pulling force or motion.
Linear solenoid’s basically consist of an electrical coil wound around a cylindrical tube with a ferro-magnetic actuator or “plunger” that is free to move or slide “IN” and “OUT” of the coils body. Solenoids can be used to electrically open doors and latches, open or close valves, move and operate robotic limbs and mechanisms, and even actuate electrical switches just by energising its coil.
Solenoids are available in a variety of configurations and formats with the more common types being the Linear Solenoid, also known as the linear electromechanical actuator (LEMA), which as its name suggests produces a straight-line linear movement, and the Rotary Solenoid which produces a rotational movement over some fixed angle.
Both types of solenoid, linear and rotational are available as either a holding (continuously energised) or as a latching type (ON-OFF pulse) with the latching types being used in either energised or power-off applications. Linear solenoids can also be designed for proportional motion control were the plunger position is proportional to the power input.
When electrical current flows through a conductor it generates a magnetic field around itself. The direction of this magnetic field with regards to its north and south poles is determined by the direction of the current flow within the wire. Then with electric current flowing through the coil of wire it becomes an “Electromagnet” creating its own north and south poles exactly the same as that for a permanent type magnet.