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Conferences

A comprehensive Doppler error budget for next generation, extreme precision spectrometers

Author(s)
Ryan C. Terrien, Samuel Halverson, Suvrath Mahadevan, Arpita Roy, Chad Bender, Guomundur K. Stefansson, Andrew Monson, Eric Levi, Fred Hearty, Cullen Blake, Michael McElwain, Christian Schwab, Lawrence Ramsey, Jason Wright, Sharon Wang, Qian Gong, Paul Robertson
We describe a detailed radial velocity error budget for the NASA-NSF Extreme Precision Doppler Spectrometer instrument concept NEID (NN-explore Exoplanet...

Modeling and Measuring Chloride Ingress into Cracked Mortar

Author(s)
Scott Jones, Jeffery Davis, John L. Molloy, John R. Sieber, Dale P. Bentz
Chloride ingress into reinforced concrete structures is responsible for initiating corrosion of steel embedded into concrete. To aide in the prediction of...

Design of a Table-Top Watt Balance

Author(s)
Stephan Schlamminger, Jon R. Pratt, David B. Newell, Frank C. Seifert, Michael Liu, Leon S. Chao, Luis Manuel Pea Prez, Shisong Li, Darine El Haddad
Measurements of the Planck constant with watt balances using 1 kg masses have achieved relative standard uncertainties below 2 x 10-8. Having established a...

Durability of Carbon Nanotube Polymer-Fiber Composites

Author(s)
Aaron Forster, James Liddle, Donald Hunston, Ajay Krishnamurthy
Significant composite strength improvements have been achieved using highly aligned and dense carbon nanotube fibers with low resin concentration, but these...

Targets for Relative Range Error Measurement of 3D Imaging Systems.

Author(s)
Prem K. Rachakonda, Balasubramanian Muralikrishnan, Katharine M. Shilling, Geraldine S. Cheok, Vincent D. Lee, Christopher J. Blackburn, Dennis S. Everett, Daniel S. Sawyer
The Dimensional Metrology Group (DMG) at the National Institute of Standards and Technology (NIST) is performing research to support the development of...

Getting the units right

Author(s)
Howard S. Cohl, Moritz A. Schubotz, David Veenhuis
To understand applied physics, and physical formulae in particular, the investigation of identifier units is beneficial. However, normally the units are not...

Miniature atomic scaler magnetometer for space based on the rubidium isotope 87Rb

Author(s)
Haje Korth, Kim Strohbehn, Francisco Tejada, Andreas G Andreou, John Kitching, Svenja A. Knappe, S. John Lehtonen, Shaughn M. London, Matiwos Kafel
A miniature absolute scalar magnetometer based on the rubidium isotope 87Rb was developed for possible future operation in space. The instrument design...
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