Light-weight type linear induction motor and its characteristics

The authors are researching a postal transportation system that would make use of linear-induction-motor (LIM)-driven vehicles for conveying mail between post offices in the Tokyo metropolitan area. The system would connect the main post offices in the Tokyo area with tunnels circularly constructed underground and transport mail using LIM-driven vehicles. It was found that, if vehicle weight were reduced, climbing capability could be considerably improved. Accordingly, the authors have explored the potential for reducing the LIM weight mounted on the vehicles, and have test manufactured a prototype lightweight LIM. They report on the LIM produced and its characteristics