MEASUREMENT AND METROLOGY

www.cmmtalk.com
CMMTalk.com was recently launched to provide an online community for computer measuring machine programmers and professionals. In the left-hand menu the site includes a list of the most popular forums. Users can also search for a particular topic in all forums by keyword and date.

www.cmsc.org
The Coordinate Measurement Systems Committee (CMSC), an international group of measurement specialists, offers a variety of measurement and metrology resources on its Web site. Measurement news, information on conferences, a long list of links and CMSC membership application materials are among the features of this site. It also includes a link to a free download of Convert 4.10, software that will convert the most popular units of measurement and has the ability to create custom conversions.

ecalibration.com
As resource for calibration professionals, this site has several directories (providers, training, instrumentation, software, consulting, organizations and supplies) along with a calendar, discussion board, career center and news. A section on calibration and the FDA was recently added.

www.flukecommunity.com
Test and Measurement Tool Users Community, sponsored by tool manufacturer Fluke, is mostly a collection of discussion forums. Topics include digital multimeters, clamp meters and testers, thermography, safety and process instrument calibration. The site also features a calendar of events relevant to forum members. While registration is required to fully participate in the forums, it is free.

www.geocities.com/Athens/Thebes/5118/metric.htm
Having trouble remembering the values of yottagrams, zettameters and femtometers? Bookmark this chart of metric prefixes for future reference. The chart offers abbreviations, meanings and examples for each prefix.

www.isa.org
The Instrumentation, Systems and Automation Society uses its site to post news on the design and use of instruments, computers and systems for measurement and control. Read full-text articles from InTech, Industrial Computing and Motion Control magazines, and read about industrial products in the reviewer database.

www.iswm.com
The International Society of Weighing and Measurement is a nonprofit society whose members include manufacturers, distributors and suppliers. Visit the society's home page for information on certification and products and services.

metrologyforum.tm.agilent.com/index.shtml
Agilent Technologies has created this "Metrology Forum" for those interested in calibration. The site offers articles on current issues and standards, international calibration practices and basic key metrology concepts. A "just for fun" area takes a lighter look at the world of measuring and calibrating.

www.metrologyworld.com
This site offers a resource center, free downloadable software and full-text articles on manufacturing trends. Its job center is extensive and simple to navigate. The product center not only contains a buyer's guide but gives users the opportunity to request quotes directly from suppliers.

www.nist.gov/traceability
The National Institute of Standards and Technology (NIST) created this site on measurement traceability (whether the result of a measurement can be related to accepted international or national standards through an unbroken chain of comparisons). It includes NIST's traceability policy, a glossary, answers to frequently asked questions, examples of NIST measurement programs and a traceability checklist for users of calibration services.

physics.nist.gov/cuu/index.html
The National Institute of Standards and Technology's units and uncertainty site has contents on the values of constants and related information, in-depth information on the international system of units and guidelines for the expression of uncertainty in measurement.

www.unc.edu/~rowlett/units/
This dictionary of measurement units is a must-bookmark for any metrology student. It includes units from the International System of Units, the metric system, the English traditional systems, and nonmetric and scientific elements. Created by a professor at the University of North Carolina at Chapel Hill, the site is extremely thorough and easy to use.

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