PTB-News 3.2019 24.09.2019 At PTB, a pulse-driven Josephson standard for the generation of AC voltages has been realized where the voltage pulses are synthesized by means of optical components. This has advantages compared to the […]
October 21, 2019, NIST News – JILA physicists and collaborators have demonstrated the first next-generation “time scale” — a system that incorporates data from multiple atomic clocks to produce a single highly accurate timekeeping signal […]
GAITHERSBURG, Md. — The U.S. Department of Commerce’s National Institute of Standards and Technology (NIST) held a ribbon-cutting ceremony yesterday to unveil a new laboratory building that substantially enhances NIST’s capabilities for radiation measurements critical […]
PTB News 2.2019 High-precision angle measurements carried out by means of autocollimators are significantly influenced by the refractive index of air – and thus in particular by the ambient pressure. When comparing measurements that have […]
For the last 30 years, the official U.S. standard for measuring pressure has been a 3-meter-tall (about 10-foot) device called a manometer. American industry relies on the U.S. pressure standard for everything from silicon chip […]
NIST NEWS, May 16, 2019 Physicists have demonstrated a new way to obtain the essential details that describe an isolated quantum system, such as a gas of atoms, through direct observation. The new method gives […]
NIST News, May 6, 2019 Ordinarily, you won’t encounter a radiation thermometer until somebody puts one in your ear at the doctor’s office or you point one at your forehead when you’re feeling feverish. But […]
NIST News, February 25, 2019 In collaboration with industry, researchers from the National Institute of Standards and Technology (NIST) have made the first portable prototype of the Fixed-Length Optical Cavity (FLOC), a device that uses […]
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