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The National Institute of Standards and Technology (NIST) has launched a five-year Microforce Realization and Measurement Project focusing on the development of an instrument and laboratory capable of realizing and measuring the SI unit of force below 5×10-6 N using the electrical units as the link to the International System of Units (SI). As a proof of principle, a prototype electromechanical balance has been developed to allow comparisons between mechanically and electrically derived forces up to 300 μN with a resolution of 15 nN. Results from force comparisons using 1-, 10-, and 20-mg deadweights are presented.
Instrumentation and Measurement, IEEE Transactions on (Volume:52 , Issue: 2 )
Date of Publication: April 2003