Title:
MAGNETICALLY LEVITATING CARRIER
Document Type and Number:
Japanese Patent JPS63257405
Kind Code:
A
Abstract:
PURPOSE:To always keep a carrier truck at a controllably stable position, by varying the desired control value of a gap controlling actuator according to a gap degree between the carrier truck and guides on the left and right. CONSTITUTION:A carrier truck 2 is provided with left and right gap sensors 5a-5d for measuring a gap degree between the carrier truck 2 and guides 1 on the left and right. To an arithmetic unit 13, the input of the left and right gap degree of the left and right gap sensors 5a-5d is provided, and an average value of the left and right gap degrees is calculated as a desired gap degree. Besides, to an adding amplifier 10, the input of the desired gap degree of the arithmetic unit 13 and the left gap degree of the left gap sensors 5a, 5b is provided, and control signal for controlling the left gap degree is calculated. By a power amplifier 9, based on the control signal of the adding amplifier 10, the coil current of a magnet actuator 3a is increased or reduced.
Inventors:
KAIHARA TOSHIYA
IMAI HIROSHI
IMAI HIROSHI
Application Number:
JP8795687A
Publication Date:
October 25, 1988
Filing Date:
April 10, 1987
Export Citation:
Assignee:
MITSUBISHI ELECTRIC CORP
International Classes:
B60L13/06; (IPC1-7): B60L13/06
Attorney, Agent or Firm:
Masuo Oiwa