NOTICE: Due to a lapse in annual appropriations, most of this website is not being updated. Learn more.

Form submissions will still be accepted but will not receive responses at this time. Sections of this site for programs using non-appropriated funds (such as NVLAP) or those that are excepted from the shutdown (such as CHIPS and NVD) will continue to be updated.

U.S. flag

An official website of the United States government

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

Conferences

Molecular Measuring Machine Design and Measurements

Author(s)
John A. Kramar, Jay S. Jun, William B. Penzes, Fredric Scire, E C. Teague, John S. Villarrubia
We at the National Institute of Standards and Technology are building a metrology instrument called the Molecular Measuring Machine (M3) with the goal of

Nonrandom Quantization Errors in Timebases

Author(s)
Gerard N. Stenbakken, D. Liu, J. A. Starzyk, Bryan C. Waltrip
Timebase distortion causes nonlinear distortion of waveforms measured by sampling instruments. When such instruments are used to measure the rms amplitude of

Improved Time-Base for Waveform Parameter Estimation

Author(s)
Bryan C. Waltrip, Owen B. Laug, Gerard N. Stenbakken
An improved gated-oscillator time-base and associated auto-calibration algorithm for use in a high-accuracy sampling waveform acquistion system are described

Long-Period Gratings as Flow Sensors for Liquid-Composite Molding

Author(s)
S R. Kueh, Richard~undefined~undefined~undefined~undefined~undefined Parnas, Joy Dunkers, S G. Advanti, P S. Furrows, M E. Jones, T A. Bailey
One of the most important issues in liquid composite molding (LCM) is the complete saturation of the preform by the resin to eliminate voids or dry spots in the

Noise-Source Stability Measurements

Author(s)
James P. Randa, L. A. Terrell, Lawrence P. Dunleavy
We report results of stability tests on several noise sources for selected frequencies between 12 and 26.5 GHz. Measurements covered intervals of about 1 week

International Comparison of 50/60 Hz Power (1996-1999)

Author(s)
Nile M. Oldham, Thomas L. Nelson, R. Bergeest, R. Carranza, M. Gibbes, K Jones, Gregory Kyriazis, H. Laiz, L. Liu, Z. Lu, U. Pogliano, K. E. Rydler, E. Shapiro, E. So, M. Temba, P. Wright
An International Comparison of 50/60 Hz Power is described. The traveling standard was an electronic power transducer which was tested at 120 volts, 5 amperes

Polarization Correlations in Pulsed VCSELs

Author(s)
D. R. Shelly, T. W. Garrison, M. Beck, David H. Christensen
We have measured the correlations between the two orthogonal linearly polarized outputs of a pulsed vertical-cavity, surface-emitting laser and found them to be

A Multi-Frequency 4-Terminal-Pair AC Bridge

Author(s)
Anne-Marie Jeffery, John Q. Shields, Scott H. Shields
A 4-terminal-pair ac bridge, capable of a relative uncertainty of 2 x 10^-9^, has been constructed at NIST. The bridge is a multi-ratio bridge (10:1, 2:1 and 1

1 Volt Josephson Fast Reversed DC Source

Author(s)
Charles J. Burroughs, Samuel Benz, Todd E. Harvey, H. Sasaki
We have made several improvements to the NIST Josephson FRDC (fast reversed dc) source so that it now operates at 1 Volt. We have made a precision comparison to
Was this page helpful?