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Microwave measurement technique developed by NIST researcher adopted by commercial instrument manufacturer.


A measurement method developed by a NIST (National Institute of Standards & Technology, Washington, DC, www.nist.gov) The standards-defining agency of the U.S. government, formerly the National Bureau of Standards. It is one of three agencies that fall under the Technology Administration (www.technology.  researcher is now being widely used in the microwave industry. The method for measuring equivalent source match, published in the October 1997 issue of Microwave Journal, enables more accurate power measurements. The method has been adopted by a number of national laboratories and companies. The most recent example is an application note published by a manufacturer of microwave equipment that describes the technique in detail. The application note points out that the uncertainty in the calibration calibration /cal·i·bra·tion/ (kal?i-bra´shun) determination of the accuracy of an instrument, usually by measurement of its variation from a standard, to ascertain necessary correction factors.  of power meters can be reduced by one order of magnitude A change in quantity or volume as measured by the decimal point. For example, from tens to hundreds is one order of magnitude. Tens to thousands is two orders of magnitude; tens to millions is three orders of magnitude, etc.  when the technique is used to correct for source and power meter mismatches.

CONTACT: Robert Judish, (497)975-3380; judish@boulder Boulder, city, United States
Boulder, city (1990 pop. 83,312), seat of Boulder co., N central Colo.; inc. 1871. A Rocky Mountain resort and a suburb of Denver, it is the seat of the Univ. of Colorado (1876).
.nist.gov.
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Title Annotation:General Developments
Publication:Journal of Research of the National Institute of Standards and Technology
Date:May 1, 2003
Words:116
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