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Displaying records 31 to 40 of 85 records.
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31. Improved Nozzle Manifold for Gas Flow Calibrations
Topic: Metrology
Published: 6/20/2012
Authors: Aaron N Johnson, Chunhui Li, John D Wright, Gina M Kline, Christopher J. Crowley
Abstract: We developed a new nozzle manifold that reduced the uncertainty of flow calibrations from 0.09 % to as low as 0.074 % for flows of air up to 0.84 kg/s (43 000 L/min at reference conditions of 101.325 kPa and 293.15 K). The nozzle manifold also reduc ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=911475

32. USARSim/ROS: A Combined Framework for Robotic Control and Simulation
Topic: Metrology
Published: 6/20/2012
Authors: Stephen B. Balakirsky, Zeid Kootbally
Abstract: The Robot Operating System (ROS) has been steadily gaining popularity among robotics researchers as an open source framework for robot control. The Unified System for Automation and Robot Simulation (USARSim) has been used for many years by robotics ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=910918

33. Technology Readiness Levels for Randomized Bin Picking
Topic: Metrology
Published: 6/13/2012
Authors: Jeremy A Marvel, Roger D. Eastman, Geraldine S Cheok, Kamel S Saidi, Tsai Hong Hong, Elena R Messina
Abstract: A proposal for the utilization of Technology Readiness Levels to the application of unstructured bin picking is discussed. A special session was held during the 2012 Performance Metrics for Intelligent Systems workshop to discuss the challenges and ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=911421

34. Calibration of Laminar Flow Meters for Process Gases
Topic: Metrology
Published: 6/1/2012
Authors: John D Wright, Thiago Cobu, Robert F Berg, Michael R Moldover
Abstract: We calibrated three models of commercially-manufactured, laminar flow meters (LFMs) at four pressures (100 kPa, 200 kPa, 300 kPa, and 400 kPa) with five gases (N2, Ar, He, CO2, and SF6) over a 10:1 flow range using NIST‰s primary flow standards as re ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=908560

35. On CD-AFM bias related to probe bending
Topic: Metrology
Published: 4/9/2012
Authors: Vladimir A Ukraintsev, Ndubuisi George Orji, Theodore Vincent Vorburger, Ronald G Dixson, Joseph Fu, Richard M Silver
Abstract: Critical Dimension AFM (CD-AFM) is a widely used reference metrology. To characterize modern semiconductor devices, very small and flexible probes, often 15 nm to 20 nm in diameter, are now frequently used. Several recent publications have reported ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=910903

36. Ground Truth for Evaluating 6 Degrees of Freedom Pose Estimation Systems
Topic: Metrology
Published: 3/28/2012
Authors: Jeremy A Marvel, Joseph A Falco, Tsai Hong Hong
Abstract: Systems developed to estimate poses of objects in 6 degrees of freedom (6DOF) Cartesian space (X, Y, and Z coordinates plus roll, pitch, and yaw) are reliant on the vendors' own processes to determine performance and measurement accuracy. These pract ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=910646

37. Measurement of H2O-Broadening of O2 A-band Transitions and Implications for Atmospheric Remote Sensing
Topic: Metrology
Published: 3/27/2012
Authors: E. M. Vess, C. J. Wallace, H. M. Campbell, V. E. Awadalla, Joseph Terence Hodges, David A Long, D. K. Havey
Abstract: We present laboratory measurements of H2O-broadened 16O2 A-band ( ) absorption spectra acquired with a laser-based photoacoustic spectroscopy method. This absorption band is widely used in a variety of high-precision atmospheric remote sensing appli ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=910528

38. 2011 Solutions in Perception Challenge Performance Metrics and Results
Topic: Metrology
Published: 3/22/2012
Authors: Jeremy A Marvel, Tsai Hong Hong, Elena R Messina
Abstract: The 2011 Solutions in Perception Challenge (SPC) presented an international collection of teams with the opportunity to develop algorithms that could positively identify and accurately locate in space an arbitrary collection of artifacts. Researchers ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=910645

39. An Overview of Robot-Sensor Calibration Methods for Evaluation of Perception Systems
Topic: Metrology
Published: 3/22/2012
Authors: Mili Indra Shah, Roger D. Eastman, Tsai Hong Hong
Abstract: In this paper, an overview of methods that solve the robot-sensor calibration problem of the forms AX = XB and AX = YB is given. Each form will be split into three solutions: separable closed-form solutions, simultaneous closed- form solutions, and i ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=910651

40. Traceable Calibration of a Critical Dimension Atomic Force Microscope
Topic: Metrology
Published: 3/9/2012
Authors: Ronald G Dixson, Ndubuisi George Orji, Craig D. (Craig) McGray, John E Bonevich, Jon C Geist
Abstract: The National Institute of Standards and Technology (NIST) has a multifaceted program in atomic force microscope (AFM) dimensional metrology. One component of this program, and the focus of this paper, is the use of critical dimension atomic force ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=908943



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