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Search Publications by: Jason J. Gorman (Fed)

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Displaying 51 - 73 of 73

A New Microdevice for SI-Traceable Forces in Atomic Force Microscopy

June 2, 2008
Author(s)
Gregory W. Vogl, Jason J. Gorman, Gordon A. Shaw, Jon R. Pratt
A new self-excited micro-oscillator is proposed as a velocity standard for dissemination of nanoNewton-level forces that are traceable to the International System of Units (SI). The microfabricated oscillator is top-coated with magnetic thin films and

Multi-Probe Assembly

December 31, 2007
Author(s)
John Wason, William Gressick, J Wen, Jason J. Gorman, Nicholas Dagalakis
This paper describes the algorithm development and experimental results of a multi-probe micro-assembly system. The experimental testbed consists of two actuated probes, an actuated die stage, and vision feedback. The kinematics relationships for the

Control of MEMS Nanopositioners With Nano-Scale Resolution

November 10, 2006
Author(s)
Jason J. Gorman, Yong Sik Kim, Nicholas Dagalakis
Several approaches for the precision control of micro-scale positioning mechanisms, or MEMS nanopositioners, are presented along with initial experimental results which demonstrate nano-scale positioning resolution. The MEMS nanopositioners discussed in

Design of an On-Chip Micro-Scale Nanoassembly System

November 3, 2006
Author(s)
Jason J. Gorman, Yong Sik Kim, Andras Vladar, Nicholas Dagalakis
In this paper, the design and proposed operation of a MEMS-based nanoassembly system is presented. The nanoassembly system is comprised of four nanomanipulators that can work independently or cooperatively. The design of the nanomanipulators will be

Probe-Based Micro-Scale Manipulation and Assembly Using Force Feedback

June 26, 2006
Author(s)
Jason J. Gorman, Nicholas Dagalakis
Repeatable manipulation and assembly of micro-scale components is a critical capability for future developments in opto-electronics, hybrid microelectromechanical systems, and the integration of nano-scale devices into larger systems. This paper focuses on

Analysis and Design of Parallel Mechanisms with Flexure Joints

December 1, 2005
Author(s)
Byoung H. Kang, J Wen, Nicholas Dagalakis, Jason J. Gorman
Flexure joints are frequently used in precision-motion stages and microrobotic mechanisms due to their monolithic construction. The joint compliance, however, can affect the static and dynamic performance of the overall mechanism. In this paper, we

Design and Modeling of Thermally Actuated MEMS Nanopositioners

November 11, 2005
Author(s)
Sebastien Bergna, Jason J. Gorman, Nicholas G. Dagalakis
Several micro-scale nanopositioning mechanisms, or MEMS nanopositioners, have been developed for application in nanotechnology and optical sensors. In this paper, the design and modeling of these devices is presented along with initial experimental results

Characterization of Optical Traps Using On-Line Estimation Methods

August 26, 2005
Author(s)
Jason J. Gorman, Thomas W. LeBrun, et al
System identification methods are presented for the estimation of the characteristic frequency of an optically trapped particle. These methods are more amenable to automated on-line measurements and are believed to be less prone to erroneous results

Development of Multiple Beam Optical Tweezers

June 1, 2005
Author(s)
Dongjin Lee, Thomas W. LeBrun, Arvind Balijepalli, Jason J. Gorman, Cedric V. Gagnon, Daehie Hong, Esther H. Chang
This paper presents the design of a multiple beam optical tweezers instrument used for manipulating micro/nano-sized components. The basic equations used in designing the optical tweezers are derived and the stable and time-sharing multiple beam optical

Design Optimization for a Parallel MEMS Mechanism with Flexure Joints

October 4, 2004
Author(s)
Byoung H. Kang, J Wen, Nicholas Dagalakis, Jason J. Gorman
This paper presents an analysis tool and design method forMEMS parallel mechanisms. Due to processing constraints inMEMS fabrication, flexure joints are frequently used in MEMSmechanisms. Flexure joints offer advantages over other joint designdue to their

Analysis and Design of Parallel Mechanisms with Flexure Joints

July 15, 2004
Author(s)
Byoung H. Kang, J Wen, Nicholas Dagalakis, Jason J. Gorman
Flexure joints are frequently used in precision motion stages and micro-robotic mechanisms due lo their monolithic construction. The joint compliance, howeyer, can affect the static and dynamic performance of the overall mechanism. In this paper, we

Performance Analysis of Next-Generation LADAR for Manufacturing, Construction, and Mobility

May 6, 2004
Author(s)
William C. Stone, Maris Juberts, Nicholas Dagalakis, Jack A. Stone Jr., Jason J. Gorman
The NIST Construction Metrology and Automation Group (CMAG), in cooperation with the NIST Intelligent Systems Division (ISD), is developing performance metrics and researching issues related to the design and development of a Next-Generation LADAR (laser

Analysis and Design of Parallel Mechanisms With Flexure Joints

April 30, 2004
Author(s)
Byoung H. Kang, J Wen, Nicholas Dagalakis, Jason J. Gorman
Flexure joints are frequently used in precision motion stages and micro-robotic mechanisms due to their monolithic construction. The joint compliance, however, can affect the static and dynamic performance of the overall mechanism.In this paper, we

Comparison of Macro-Tip/Tilt and Mesoscale Position Beam-Steering Transducers for Free-Space Optical Communications Using a Quadrant Photodiode Sensor

January 1, 2004
Author(s)
K B. Fielhauer, B G. Boone, J R. Bruzzi, Jeffery Kluga, J R. Connelly, M M. Bierbaum, Jason J. Gorman, Nicholas Dagalakis
The National Aeronautics and Space Administration (NASA) plans to develop optical communication terminals for future spacecraft, especially in support of high data rate science missions and manned exploration of Mars. Future, very long-range missions, such

Multiloop Control of a Nanopositioning Mechanism for Ultraprecision Beam Steering

January 1, 2004
Author(s)
Jason J. Gorman, Nicholas Dagalakis, B G. Boone
Beam steering accuracy is critical to the successful operation of optical communications systems, especially those which take place over extreme length scales, such as for an interstellar spacecraft. In this paper, a novel beam steering mechanism and

Force Control of Linear Motor Stages for Microassembly

November 21, 2003
Author(s)
Jason J. Gorman, Nicholas Dagalakis
The microassembly of microelectromechanical systems from various micro-components requires the development of many new robotic capabilities. One of these capabilities is force control for handling micro-scale components with force control resolution on the

Comparison of Macro-Tip/Tilt & Meso-Scale Position Beam-Steering Transducers for Free-Space Optical Communications Using a Quadrant Photodiode Sensor

August 6, 2003
Author(s)
Jason J. Gorman, Nicholas Dagalakis, K B. Fielhauer, B G. Boone, J R. Bruzzi, Jeffery Kluga
The National Aeronautics and Space Administration (NASA) plans to develop optical communication terminals for future spacecraft, especially in support of high data rate science missions and manned exploration of Mars. Future, very long-range missions, such
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