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NIST Pubs

Performance Verification of Impact Machines for Testing Plastics

Author(s)
Thomas A. Siewert, D P. Vigliotti, L B. Dirling, Christopher N. McCowan
Valid comparison of impact test energies reported by various organizations and over time depends on consistent performance of impact test machines. This paper...

On the Diffraction Limit for Lensless Imaging

Author(s)
Klaus Mielenz
The diffraction limit for lensless imaging, defined as the smallest obtainable point image, is analyzed and compared to the corresponding limit for imaging with...

An Information System to Support Calibration

Author(s)
Kevin G. Brady
The National Institute of Standards and Technology (NIST) performs calibrations that achieve the highest level of measurement quality for the makers and users...
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