An official website of the United States government
Here’s how you know
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.
https://www.nist.gov/people/john-r-stoup
John R. Stoup (Fed)
Mr. Stoup is a mechanical engineer in the Dimensional Metrology Group in the Sensor Science Division of the Physical Measurement Laboratory (PML) at the National Institute of Standards and Technology (NIST).
Patrick Egan, Eric S. Stanfield, John R. Stoup, Christopher W. Meyer
Recent developments in diameter metrology at NIST have improved the dimensional characterization of piston–cylinder assemblies (PCAs) to unprecedented precision...
Iosif Isaakovich Shinder, Aaron Johnson, James Filla, Vladimir B. Khromchenko, Michael R. Moldover, Joey Boyd, John D. Wright, John R. Stoup
We present protocols for making fast, accurate, 3-D velocity measurements in the stacks of coal-fired power plants. The measurements are traceable to...
Jeffrey Jargon, Dylan Williams, Angela Stelson, Chris Long, Aaron Hagerstrom, John R. Stoup, Eric S. Stanfield
In this report, we document the models and dimensional traceability of our 2.4 mm coaxial airline standards for performing multiline thru-reflect-line...