Our goal is to provide world-class engineering metrology resources to the U.S. manufacturers. This web site is one of an array of mechanisms we make available to our customers to help them achieve high-accuracy dimensional measurements traceable to national and international standards. We hope you will find it to be a useful aid that improves your measurement capabilities.

Currently the web site has two computational tools. The first tool is for calculating the index of refraction of air, which is needed for interferometric length measurements. The second tool is for calculating the elastic compression of spheres and cylinders at point and line contact, which can enable the user, for example, to correct for elastic deformations when measuring a part with a contacting probe. The calculations are implemented for 16 different contact geometries.

Web Site Home: Engineering Metrology Toolbox
Technical Inquiries: Ted Doiron, Group Leader
Engineering Metrology
Precision Engineering Division
Manufacturing Engineering Laboratory
NIST, 100 Bureau Drive, Stop 8211, Gaithersburg, MD 20899-8211

NIST / MEL / Precision Engineering Division

NIST Program Questions: Public Inquires Unit
(301) 975-NIST (6478) TTY (301) 975-8295
NIST, 100 Bureau Drive, Stop 3460, Gaithersburg, MD 20899-3460
Technical Web Site Questions: Jay Zimmerman
Privacy Policy, Security Notice, and Accessiblity Statement
Disclaimer / Freedom of Information Act (FOIA) / No Fear Act Policy
NIST Information Quality Standards / Feedback and Comments

NIST is an agency of the: U.S. Department of Commerce

Date Created: Friday, November 05, 2004
Last Updated: Tuesday, May 03, 2005