WIRELESS POWER Meaning and
Definition
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Wireless power refers to the transmission of electrical energy from one point to another without the need for physical connectors or wires. It is a technological concept that enables the transfer of electrical power through the air or space, allowing devices to be charged or powered remotely.
The principle behind wireless power relies on the utilization of electromagnetic fields. It involves the conversion of electrical energy into electromagnetic waves, which are then transmitted through the air. The receiving device, equipped with a compatible receiver coil, can capture and convert these electromagnetic waves back into electrical energy, which can be used to charge or power the device.
Wireless power technology has evolved over the years to accommodate various applications and implement different transmission methods. Inductive coupling is a common technique employed in close-range wireless power transfer. It relies on two coils, one within the transmitting device and another within the receiving device, which create a magnetic field that induces an electrical current in the receiving coil.
Resonant inductive coupling is another method that enables wireless power transfer over greater distances. It utilizes resonant circuits that match their frequencies to efficiently transfer energy between the transmitter and receiver.
Wireless power has gained significant interest and adoption in recent years due to its potential to eliminate cables and connectors, enabling greater convenience and flexibility. It has found applications in a variety of fields, including consumer electronics, automotive industry, medical devices, and industrial automation, among others. As technology continues to advance, wireless power is expected to become even more integral to our everyday lives.
Etymology of WIRELESS POWER
The etymology of the term "wireless power" is composed of two key components:
1. Wireless: The term "wireless" originated in the late 19th century, combining the prefix "wire", indicating that which is conducted through wires, with the adjective "less", meaning without. "Wireless" was first used in the context of telegraphy as a means of transmitting messages without the need for physical wires. The renowned physicist and engineer Guglielmo Marconi further popularized the term when he applied it to his wireless telegraphy system, which was capable of transmitting radio waves over long distances without the use of wires.
2. Power: "Power" has its roots in Middle English, deriving from the Old French word "poeir". The term refers to the ability or capacity to do something or exert force.
