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Apparatus and methods for a human de-amplifier system

United States Patent

July 4, 2000
View the Complete Patent at the US Patent & Trademark Office
Y-12 National Security Complex - Visit the Technology Transfer Website
A human de-amplifier system for interfacing a human operator and a physical object through a physical plant, wherein the physical object has dimensions in the range of 1 micrometer to 1 mm. The human de-amplifier system uses an inner-feedback loop to increases the equivalent damping of the operating system to stabilize the system when it contacts with the environment and reduces the impact of the environment variation by utilizing a high feedback gain, determined by a root locus sketch. Because the stability of the human de-amplifier system of the present invention is greatly enhanced over that of the prior art, the de-amplifier system is able to manipulate the physical object has dimensions in the range of 1 micrometer to 1 mm with high stability and accuracy. The system also has a monitoring device to monitor the motion of the physical object under manipulation.
Kress; Reid L. (Oak Ridge, TN), Jansen; John F. (Knoxville, TN)
Lockheed Martin Energy Research Corporation (Oak Ridge, TN)
09/ 253,186
February 19, 1999
This invention was made with Government support under Contract No. DE-AC05-84OR21400 awarded by the U.S. Department of Energy to Lockheed Martin Energy Research Corp., and the Government has certain rights in this invention.