The 1 cm squared microchip used for NIST’s Johnson Noise Thermometry work, fabricated at the Boulder, Colo., campus.
NIST has recently made substantial improvements to its Johnson-noise thermometry system, which is playing a vital role in the worldwide effort to determine the value of a key physical constant in time for the impending redefinition of the International System of Units (SI) in 2018. The system is now capable of yielding statistical uncertainties 10 times smaller than its
Researchers at the National Institute of Standards and Technology (NIST) have conducted the first demonstration of a faster and more accurate way to calibrate certain kinds of microphones. The technique, which uses lasers to measure […]
Researchers at NIST have developed a new — and sound — way to accurately measure the rate at which gas flows in and out of a vessel. The technique, which uses acoustic waves to determine […]
Metrology is an integral part of the fourth industrial revolution. With manufacturers facing waves of big data as the Industrial Internet of Things (IIoT) ramps up and factories get smarter, the demand for higher levels […]
