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Physical Measurement Laboratory

News and Updates

Displaying 176 - 200 of 1546
bragg grating

Hooked on Photonics? Math to the Rescue

Photonic thermometers – which measure temperature using light – have been around in optical fiber form for decades. These devices, called fiber Bragg gratings
artifact

Back to the Future: Gear Edition

As mechanical objects, gears have been around for so long that people may take them for granted. But gears are sophisticated parts that play a vital role in
Stephen Eckel

A Primary Standard for Measuring Vacuum

A novel, quantum-based vacuum gauge system invented by researchers at the National Institute of Standards and Technology (NIST) has passed its first test to be
sound setup

Now Hear This!

Researchers at the National Institute of Standards and Technology (NIST) have designed and built an optical device that could set a new standard for measuring
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