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 VIDEOS

Operating Principles of the NIST-4 Watt Balance

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  Appears In
      
      Redefining the Kilogram: Watt BalanceKilogram: The Kibble BalanceResources for ReportersFor All Times, For All Peoples: How Replacing the Kilogram Empowers Industry
      
            The watt balance lets researchers determine the mass of an object indirectly via two measuring modes that determine two different quantities: the strength of the magnetic field, and the current running through a coil of wire. Credit: Sean Kelley/NIST

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                                November 4, 2014
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