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
The MSL Uncertainty Calculator is an Excel spreadsheet that provides an uncertainty table suitable for summarising and propagating uncertainties. The total uncertainty is calculated together with the effective degrees of freedom and coverage factor. This […]
BUSAN, South Korea, July 22, 2025 /PRNewswire/ — To handle growing complexity in semiconductor and display manufacturing, industries use automated material handling systems (AMHSs). Digital twins offer better visibility and control, but mismatches with real-world conditions […]
An improvement to a Nobel Prize-winning technology called a frequency comb enables it to measure light pulse arrival times with greater sensitivity than was previously possible — potentially improving measurements of distance along with applications […]
