| 摘要 |
PURPOSE:To make it possible to advance smoothly by detecting a relative position of a secondary side conductor which is induced to a proceeding field of a primary side to drive forward and controlling thrust to advance the secondary side conductor from the result of detection. CONSTITUTION:When a carrier truck 4 starts and advances in accordance with running conditions programmed into a controller 9 in advance, according to light emission and light receiving diode array 6, a relative position of a secondary side conductor plate 3 against a primary side stator 1 is read out by a position detector 8. An opposed area is obtained from the detected position information of the carrier truck 4, and such thrust that compensate the loss of the thrust due to the variation in the opposed area is calculated to send a command value to a driving device 10. Upon receiving the command value, the driving device 10 supplies necessary power to the primary side stator 1. According to the constitution, the carrier truck can smoothly start and advance. |
