by Richard Fertell, Hamed Ershad, York Xu, Osborne Gumbs, & Tammy Tran This article is the second of a series describing how to perform liquid flow rate calibrations at fluid temperatures below +5 °C and […]
by Henry A. Zumbrun Imagine that a satellite is launched into space and communications are intermittent. This happens because the satellite is wobbling, which causes connection problems in the receiver. The cause of the wobbling […]
by Roland A. Boucher When the French proposed their first metric system in 1723, they had no idea it had been invented by the ancient Mesopotamians 5000 years earlier. Just as the French proposed to […]
by Dr. Alex Lepek The purpose of this paper is to initiate standardization between calibration labs and users of the file for exchanging calibration data. Experience has it that to agree upon a file that […]
WASHINGTON, D.C., June 20, 2017 — In the last decades, mobile phones and other wireless devices have become central features of life around the globe. These devices radiate varied amounts of electromagnetic energy and thus […]
Isothermal Technology Ltd (Isotech) is celebrating winning a Queen’s Award for the co-development of an innovative resistance bridge for use in establishing and disseminating the International Temperature Scale (ITS-90). The product, called microK, is now […]
Researchers at the National Institute of Standards and Technology (NIST) have produced and precisely measured a spectrum of X-rays using a new, state-of-the-art machine. The instrument they used to measure the X-rays took 20 years […]
For industry and government labs to ensure their pressure-measurement machines are working correctly, they need a reliable source of pressure. Often, that source is a piston gauge – a cylinder of metal that falls through […]
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