Operating Principles of the NIST-4 Watt Balance
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.
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.