Skip to main content

High-speed digital controller for magnetic servo levitation of robot mechanisms

  • Section 2: Design
  • Conference paper
  • First Online:
Book cover Experimental Robotics I

Part of the book series: Lecture Notes in Control and Information Sciences ((LNCIS,volume 139))

Abstract

Magnetic levitation has the strong potential to be a precision force/position-controllable actuator with inherent force-sensing capability in itself. We call such a system magnetic servo levitation to distinguish it from conventional magnetic suspension-only levitation. Magnetic levitation inherently has strong instability and needs high-speed closed-loop control. There were few applications of magnetic servo levitation because high-speed digital controllers were not available. The authors developed a digital controller using a digital signal processor, and experimentally verified that magnetic servo levitation is promising and realizable by the state-of-the-art device technology.

M. Tsuda, a Ph.D. candidate at the Institute of Industrial Science, University of Tokyo, is presently a visiting researcher at the Center for Robotic Systems in Microelectronics, University of California, Santa Barbara, for collaborative research of the two institutions.

This is a preview of subscription content, log in via an institution to check access.

Access this chapter

Institutional subscriptions

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

References

  1. K. Takahara et al., "Development of a Magnetically Suspended Tetrahedron-Shaped Antenna Pointing System," NASA CP-2506. 22nd Aerospace Mechanisms Symp. 1988, pp. 133–147.

    Google Scholar 

  2. S. Iwaki and R. Matsuda, "Testing and Investigation of Magnetically Suspended APM," Proc. of Int. Space Technology and Science 86, 1986, pp. 787.

    Google Scholar 

  3. T. Higuchi, M. Tsuda and S. Fujiwara, "Magnetic Supported Intelligent Hand for Automated Precise Assembly," Proc. of 1987 Int. Conf. on Industrial Electronics, Control, and Instrumentation, SPIE Vol. 857, 1987, pp. 926–933.

    Google Scholar 

  4. R. L. Hollis, A. P. Allan, and S. Salcudean, "A Six Degree-of-freedom Magnetically Levitated Variable Compliance Fine Motion Wrist," Proc. of 4th Int. Symp. on Robotics Research, 1987, pp. 241–249.

    Google Scholar 

  5. T. Higuchi, K. Oka and H. Sugawara, "Development of Clean Room Robot with Contactless Joints using Magnetic Bearings," Proc. of USA-Japan Symp. on Flexible Automation, 1988.

    Google Scholar 

  6. T. Higuchi and H. Kawakatsu, "Development of Super-Clean Actuator for Machines and Robots," Proc. of 12th MOTOR-CON'88, 1987, pp. 322–334.

    Google Scholar 

  7. O. Khatib, "Augmented Object and Reduced Effective Inertia in Robot Systems," Proc. of 1988 American Control Conference, 1988, pp. 2140–2147.

    Google Scholar 

  8. S. Salcudean and Chae An, "On the Control of Redundant Coarse-Fine Manipulators," Proc. of 1989 IEEE Int. Conf. on Robotics and Automation, 1989, pp. 1834–1840.

    Google Scholar 

  9. H. Ulbrich and G. Schwetzer, "A Rotor Supported Without Contract — Theory and Application," Proc. of 5th World Congress on Theory of Machines and Mechanisms, 1979, pp. 181–184.

    Google Scholar 

  10. M. Tsuda, "Development of Magnetically Supported Intelligent Hand," MS thesis, Department of Precision Mechanical Engineering, University of Tokyo, 1988, (in Japanese.)

    Google Scholar 

  11. M. Tsuda, Y. Nakamura and T. Higuchi, "Design of Magnetic Servo Levitation for Robot Mechanisms," Proc. of 20th Int. Symp. on Industrial Robots, 1989.

    Google Scholar 

  12. T. Chikada and K. Furuta, "Computer Control of a Magnetic Levitation System," Trans. Society of Instrument and Control of Engineers, Vol. 17, No. 7, 1981, pp. 713–720, (in Japanese.)

    Google Scholar 

  13. M. Hisatani Y. Inoue and J. Mitsui, "Development of Digitally Controlled Magnetic Bearing," Trans. Japan Society of Mechanical Engineers, Vol. 51 No. 465, 1985, pp. 1095–1100, (in Japanese.)

    Google Scholar 

  14. M. Tsuda, T. Higuchi, S. Fujiwara, "Functions of Magnetically Supported Intelligent Hand for Automatic Precision Assembly," Proc. of 20th Int. Symp. on Industrial Robots, 1989.

    Google Scholar 

Download references

Author information

Authors and Affiliations

Authors

Editor information

Vincent Hayward Oussama Khatib

Rights and permissions

Reprints and permissions

Copyright information

© 1990 Springer-Verlag

About this paper

Cite this paper

Tsuda, M., Nakamura, Y., Higuchi, T. (1990). High-speed digital controller for magnetic servo levitation of robot mechanisms. In: Hayward, V., Khatib, O. (eds) Experimental Robotics I. Lecture Notes in Control and Information Sciences, vol 139. Springer, Berlin, Heidelberg. https://doi.org/10.1007/BFb0042523

Download citation

  • DOI: https://doi.org/10.1007/BFb0042523

  • Published:

  • Publisher Name: Springer, Berlin, Heidelberg

  • Print ISBN: 978-3-540-52182-2

  • Online ISBN: 978-3-540-46917-9

  • eBook Packages: Springer Book Archive

Publish with us

Policies and ethics