Abstract
This paper discusses the effect of basic manipulator characteristics upon the implementation of high performance joint torque control. Two manipulators with very different characteristics (high and low gear ratios) are used in this analysis: The PUMA 560 manipulator and ARTISAN, a ten degree-of-freedom manipulator currently under development at Stanford. The experimental results obtained with a prototype link of ARTISAN are presented and compared to those previously obtained with the PUMA. This paper also describes conceptually a new type of torque sensor, developed during the course of this project. With this new sensor, using inductive contactless transducers, torques are evaluated by distance measurements of deflections in the sensor's structure. The new sensor provides a substantial increase in accuracy over conventional strain gauge sensors, achieves higher mechanical robustness, and presents lower sensitivity to electrical noise.
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Armstrong, B., “Dynamics for Robot Control: Friction Modeling and Ensuring Excitation during Parameter Identification,” Ph.D. thesis, Department of Electrical Engineering, Stanford University, Stanford, CA, June 1988.
Asada, H., Youcef-Toumi, K., and Lim, S.K., “Joint Torque Measurement of a Direct Drive Arm,” 23d IEEE Conference on Decision and Control, December 1984, pp. 1332–1337.
Colgate, E., and Hogan, N., “An Analysis of Contact Instability in Terms of Passive Physical Environments,” Proc. IEEE International Conference on Robotics and Automation, Scottsdale, Arizona, 1989, pp. 404–409.
Eppinger S.D., and Seering W.P., “On Dynamics of Robot Force Control,” Proc. IEEE International Conference on Robotics and Automation, San Francisco, CA, 1986.
Eppinger, S.D., and Seering, W. P., “Understanding Bandwidth Limitations in Robot Force Control,” Proc. 1987 IEEE International Conference on Robotics and Automation, Raleigh, N.C., CA, April 1987.
Khatib, O., Burdick, J., “Motion and Force Control of Robot Manipulators,” Proc. International Conference on Robotics and Automation, San Francisco, CA, April 1986, pp. 1381–1386.
Luh, J.Y.S., Fisher, W.D., and Paul, R.P., “Joint Torque Control by a Direct Feedback for Industrial Robots,” IEEE Transactions on Automatic Control, AC-28, 1983, pp. 153–160.
Pfeffer, L., Khatib, O., and Hake, J., “Joint Torque Sensory Feedback in the Control of a PUMA Manipulator,” Proc. American Control Conference, Seattle, Washington, June 1986, pp. 818–824.
Roberts, R.K. Paul, R.P., and Hillberry, B.M., “The Effect of Wrist Sensor Stiffness on the Control of Robot Manipulators,” Proc. IEEE International Conference on Robotics and Automation, St. Louis, MO, March 1985, pp. 269–274.
Roth, B., Raghavan, M., Khatib, O., and Waldron, K., “Kinematic Structure for a Force Controlled Redundant Manipulator,” Proc. International Meeting on Advances in Robot Kinematics, Ljubljana, Yugoslavia, September 1988, pp. 62–66.
Townsend, W., “The Effect of Transmission Design on Force-Controlled Manipulator Performance,” Ph.D thesis, Artificial Intelligence Laboratory, Massachusetts Institute of Technology, Cambridge, MA, 1988.
Whitney, D.E., “Historical Perspective and State of the Art in Robot Force Control,” Proc. IEEE International Conference on Robotics and Automation, St. Louis, MO, March 1985, pp. 883–889.
Wu, C.H., and Paul, R.P., “Manipulator Compliance Based on Joint Torque Control,” 19th IEEE Conference on Decision and Control, December 1980, pp. 88–94.
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© 1990 Springer-Verlag
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Vischer, D., Khatib, O. (1990). Design and development of torque-controlled joints. 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/BFb0042525
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DOI: https://doi.org/10.1007/BFb0042525
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