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Search Publications by: Nicholas G. Paulter Jr. (Fed)

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Displaying 51 - 75 of 126

Portable X-Ray Systems for Use in Bomb Identification and Interdiction

December 1, 2007
Author(s)
Nicholas G. Paulter Jr.
The NIJ Standard for Portable X-Ray Systems is a minimum performance standard as applied to the man-portable battery-powered x-ray systems for use by bomb technicians and investigators. These systems comprise the x-ray generator, the image acquisition

Nanosecond Delay With Subpicosecond Uncertainty

September 1, 2007
Author(s)
Donald R. Larson, Nicholas Paulter
We have combined a commercially available, variable length coaxial delay line (trombone line) with a high resolution linear translation system. The result is better resolution and lower uncertainty in the achievable delays than previously available. The

Characterization of an Optical Time Domain Reflectometer Calibrator

March 1, 2007
Author(s)
Donald R. Larson, Nicholas G. Paulter Jr., Kenneth C. Blaney
We report the results of an investigation into the signal characteristics and behavior of an instrument used to calibrate Optical Time Domain Reflectometers. This instrument implements the Telecommunications Industry Association standard TIA/EIA-455-226

A Measurement of Propagation Delay

January 16, 2007
Author(s)
Donald R. Larson, Nicholas Paulter
A measurement method and associated uncertainty analysis have been developed for the measurement of propagation or group delay in electrical transmission lines and optical fibers. The measurement method and uncertainty analysis were applied to measurements

The OLES Imaging Metrology Program

November 22, 2006
Author(s)
Nicholas G. Paulter Jr.
The OLES Imaging Metrology Program is a broad-based interdisciplinary activity initiated and maintained for the development of metrology of digital imagery as applied to security, law enforcement, and corrections applications.

Impulse Spectrum Amplitude Uncertainty Analysis

October 1, 2006
Author(s)
Nicholas Paulter, Donald R. Larson
A detailed uncertainty analysis for an impulse spectrum amplitude measurement system is presented. This analysis includes consideration of effects such as temperature, computation algorithms, history of instrument performance, equipment limitations, and

Characterization and Calibration of an Optical Time Domain Reflectometer Calibrator

August 23, 2006
Author(s)
Donald R. Larson, Nicholas Paulter, Kenneth C. Blaney
We report the results of an investigation into the signal characteristics and behavior of an instrument used to calibrate Optical Time Domain Reflectometers. This instrument implements the Telecommunications Industry Association standard TIA/EIA-455-226

Characterization of an Optical Time Domain Reflectometer Calibrator

April 1, 2006
Author(s)
Donald R. Larson, Nicholas Paulter, Kenneth C. Blaney
We report the results of an investigation into the signal characteristics and behavior of an instrument used by the US Air Force Metrology and Calibration Program to calibrate optical time domain reflectometers. The instrument is calibrated using NIST

IEEE TC-10: Update 2006

April 1, 2006
Author(s)
Nicholas Paulter, W. B. Boyer, Thomas E. Linnenbrink, S. J. Tilden

Measurement of Impulse Spectrum Amplitude for Use in EMI Susceptibility Tests

March 1, 2006
Author(s)
Nicholas Paulter, Donald R. Larson
A system for measuring the impulse spectrum amplitude of the output of impulse generators and the response of receivers is described. The calibration procedures used in this measurement system were recently modified, which resulted in a reduction in the

High-Bandwidth Coaxial PWB Transmission Line Probe

December 5, 2005
Author(s)
Nicholas Paulter, Robert H. Palm, Dwight D. Barry
The design and test of a wide bandwidth (3 dB attenuation bandwidth > 20 GHz) , 50 ohm , coaxial probe for the electrical characterization of printed wiring board (PWB) transmission lines is described. The probe makes thousands of repeated contacts, using

A Discussion of the IEEE Standard on Transition and Pulse Waveforms, Std-181-2003

October 1, 2004
Author(s)
Nicholas Paulter, Donald R. Larson, Jerome J. Blair
The IEEEStd-181-2003, which is a newstandard on pulse techniques and definitions, has been recently published. This standard was written to replace the withdrawn IEEE standards, Std-181-1977 and Std-194-1977. The Std-181-2003 combines information from both

The IEEE Standard on Transitions, Pulses, and Related Waveforms, Std-181-2003

August 1, 2004
Author(s)
Nicholas Paulter, Donald R. Larson, Jerome J. Blair
The IEEE has written a new standard on pulse techniques and definitions to replace the withdrawn standards, IEEE-Std-181-1977 and Std-194-1977. The Std-181-2003 combines information from both of the withdrawn standards. Relative to the withdrawn standards

NIST Impulse Spectrum Amplitude Measurement Service

July 1, 2004
Author(s)
Nicholas Paulter, Donald R. Larson
The NIST service for measuring the impulse spectrum amplitude of the output of impulse generators is described. The calibration procedures used in this measurement service were recently modified and this reduced both the time for measurement and the

Pulse Parameter Dependence on Transition Occurrence Instant and Waveform Epoch

May 20, 2004
Author(s)
Donald R. Larson, Nicholas Paulter, David I. Bergman
The pulse parameters of amplitudeds and transition duration (10% to 90 %) are examined as a function of the epoch and position of the transition edge in the epoch. The primary explanations for the observed variations are the pulse aberrations and the

The Effect of Tilt on Waveform State Levels and Pulse Parameters

May 20, 2004
Author(s)
Nicholas Paulter, Donald R. Larson
Tilt is the slope in waveform values that occurs before and/or after a waveform transition. Tilt causes a bias in the computed values of waveform state levels that may affect the value of several waveform parameters. The effects of tilt on pulse parameters

Pulse Parameter Dependence on Transition Position and Epoch Duration

May 18, 2004
Author(s)
Donald R. Larson, Nicholas Paulter, David I. Bergman
The pulse parameters of amplitudes and transition duration (10% to 90%) are examined as a function of the epoch and position of the transition edge in the epoch. The primary explanations for the observed variations are the pulse aberrations and the finite

NIST-NPL Interlaboratory Pulse Measurement Comparison

January 13, 2004
Author(s)
Nicholas Paulter, A. G. Smith, Donald R. Larson, T. M. Souders, A. G. Roddie
A comparison of the pulse parameter values obtained from the pulse measurement services of the National Institute of Standards and Technology, USA and the National Physical Laboratory, UK was performed. The comparison was based on the pulse parameters of