Industry and Metrology Related News
Settling a key dispute in the wireless communications field, researchers at the National Institute of Standards and Technology (NIST) found that transmission performance is consistent across different bands of the millimeter-wave (mmWave) spectrum targeted for […]
The optical cavity consists of two ultra-high-reflectivity mirrors (reflectivity > 99.995 %) that are suspended from two electromagnetic force-compensation balances. The visible laser beam is reflected 21 times between the mirrors. Source: Photon momentum for […]
PTnews 1.2022 – The measurement responses of optical measuring devices to surface topography can be described by the instrument transfer function (ITF). At PTB, a novel material measure has been developed to characterize two-dimensional instrument […]
PTBnews 1.2022 – A classical measurement system for measuring magnetic field distributions, which vary spatially on the nanometer scale, was calibrated by means of an atomic quantum sensor for the first time. This new calibration […]
by M. Scheifstein, Originally posted February 15, 2022 A failure to periodically calibrate radiation monitoring equipment at Entergy Louisiana’s Waterford 3 nuclear power plant in Killona has earned the company a verbal slap on the wrist […]
The BIPM has expanded its e-learning platform to allow RMOs to publish their training material on the site, complementing the BIPM material. The aim of the BIPM e-learning platform is to facilitate online training and […]
JILA physicists have measured Albert Einstein’s theory of general relativity, or more specifically, the effect called time dilation, at the smallest scale ever, showing that two tiny atomic clocks, separated by just a millimeter or […]
Using cutting-edge optical frequency standards developed at PTB and NPL, the team has been able to demonstrate that their measurement precision is preserved even when transmitted across thousands of kilometers of optical fibre. Source: New […]
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