Editing Linear induction motor (section)

==Uses==
[[File:LIMTV testing at DoT Pueblo test facility.tiff|thumb|right|LIMTV Linear Induction Motor Test Vehicle in 1973]]
Because of these properties, linear motors are often used in [[magnetic levitation|maglev]] propulsion, as in the Japanese [[Linimo]] [[magnetic levitation train]] line near [[Nagoya]].

[[File:Birmingham International Maglev.jpg|thumb|The [[Birmingham Airport]] Maglev shuttle]]
The world's first commercial automated maglev system was a [[AirRail Link#Maglev|low-speed maglev shuttle]] that ran from the airport terminal of [[Birmingham Airport]] to the nearby [[Birmingham International railway station]] between 1984–1995.<ref>{{cite news |url=http://news.bbc.co.uk/1/hi/sci/tech/488394.stm |title=The magnetic attraction of trains |work=[[BBC News]]  |date=9 November 1999}}</ref> The length of the track was {{convert|600|m|ft}}, and trains "flew" at an altitude of {{convert|15|mm|in}}, levitated by electromagnets, and propelled with linear induction motors.<ref>Maglev, A film for The People Mover Group</ref> It was in operation for nearly eleven years, but [[obsolescence]] problems with the electronic systems made it unreliable in its later years. One of the original cars is now on display at [[Railworld]] in [[Peterborough]], together with the [[Research Test Vehicle 31|RTV31]] hover train vehicle.<ref>A Maglev unit for Railworld ''[[Rail (magazine)|Rail]]'' issue 425 26 December 2001 page 65</ref>

However, linear motors have been used independently of magnetic levitation, such as [[Tokyo]]'s [[Toei Ōedo Line]]. The [[Bombardier Innovia Metro]] is an example of an automated system that utilizes LIM propulsion. The longest [[rapid transit]] system employing such technology is the [[Guangzhou Metro]], with approximately {{convert|130|km|abbr=on|}} of route using LIM propelled subway trains along [[Line 4 (Guangzhou Metro)|Line 4]], [[Line 5 (Guangzhou Metro)|Line 5]] and [[Line 6 (Guangzhou Metro)|Line 6]]. They are also used by the [[Tomorrowland Transit Authority PeopleMover]] at [[Walt Disney World Resort]] in [[Bay Lake, Florida]], and the [[Subway (George Bush Intercontinental Airport)|Subway people mover]] at [[George Bush Intercontinental Airport]] in [[Houston]], [[Texas]], which uses the same design.

Linear induction motor technology is also used in some [[launched roller coaster]]s. At present it is still impractical on street running [[tram]]s, although this, in theory, could be done by burying it in a slotted conduit.

[[Image:JFK AirTrain.agr.jpg|thumb|[[AirTrain JFK]] trains propel themselves using an aluminium induction strip placed between the rails.]]
Outside of public transportation, vertical linear motors have been proposed as lifting mechanisms in deep [[mining|mine]]s, and the use of linear motors is growing in [[motion control]] applications. They are also often used on sliding doors, such as those of [[low floor]] [[tram]]s such as the [[Alstom Citadis]] and the [[Socimi Eurotram|Eurotram]].

Dual axis linear motors also exist. These specialized devices have been used to provide direct ''X''-''Y'' motion for precision laser cutting of cloth and sheet metal, automated [[Technical drawing|drafting]], and cable forming. Also, linear induction motors with a cylindrical secondary have been used to provide simultaneous linear and rotating motion for mounting electronic devices on printed circuit boards.<ref>Mechatronic design of a z-φ induction actuator, P. de Wit, J. van Dijk, T. Blomer, and P. Rutgers, proc. of IEE EMD '97 Conference. Cambridge 1997. pp. 279–283, 1-3 Sept. 1997</ref>

Most linear motors in use are LIM (linear induction motors) or LSM (linear synchronous motors). Linear DC motors are not used as it includes more cost and linear [[Switched reluctance motor|SRM]] suffers from poor thrust. So for long run in traction LIM is mostly preferred and for short run LSM is mostly preferred.

[[File:EMALS.JPG|thumb|A diagram of EMALS' induction motor]]
Linear induction motors have also been used for launching aircraft, the Westinghouse Electropult<ref name=personalView/> system in 1945 was an early example and the [[Electromagnetic Aircraft Launch System]] (EMALS) was due to be delivered in 2010.

Linear induction motors are also used in looms, magnetic levitation enable bobbins to float between the fibers without direct contact.

The first ropeless [[elevator]] invented by [[ThyssenKrupp]] uses a linear induction drive power.<ref>{{cite web|last1=Miley|first1=Jessica|title=The World's First Ropeless Multi-Directional Elevator Will Be Installed in Berlin|url=https://interestingengineering.com/worlds-first-ropeless-multi-directional-elevator-installed-in-berlin|website=Interesting Engineering|date=2017-06-26}}</ref>