magnetic levitation
Học thuậtThân thiện
Definition
Noun: A technology, particularly for high-speed transportation, where an object (such as a train) is suspended, lifted, and propelled by magnetic forces, eliminating physical contact and thus friction with the track.
Usage
This term refers specifically to the technological principle and system that enables frictionless movement. * The new train line utilizes magnetic levitation to achieve unprecedented speeds. * Magnetic levitation is often abbreviated as maglev. * The efficiency of the system depends entirely on the stability of the magnetic levitation.
Advanced Usage
- As a modifier: The term is frequently used attributively (like an adjective) to describe related technologies and systems.
- maglev train, maglev technology, maglev propulsion system.
- In scientific/engineering contexts: It describes the physical phenomenon itself, beyond just transportation.
- Magnetic levitation is also used in laboratory settings for contactless handling of materials.
Variants and Related Words
- Maglev (n.): The common abbreviation for "magnetic levitation," especially when referring to the transportation system.
- The Shanghai maglev is one of the fastest commercial trains in the world.
- Electromagnetic suspension (EMS) (n.): A specific method of achieving magnetic levitation using attractive electromagnetic forces.
- Electrodynamic suspension (EDS) (n.): A specific method of achieving magnetic levitation using repulsive forces from superconducting magnets.
Synonyms
- Magnetic suspension
- Contactless suspension (in a technical context)
Related Phrases/Concepts
- Linear induction motor: The propulsion system commonly paired with magnetic levitation in train systems.
- Frictionless travel/transport: A descriptive phrase for the key benefit provided by magnetic levitation.
- Guideway: The specialized track or pathway for a maglev vehicle.
Noun
- high-speed rail technology; train is suspended on a magnetic cushion above a magnetized track and so travels free of friction