The heart of WWV and WWVB operation in Fort Collins centers around the “Screen Room,” a Faraday cage-shielded room housing the station’s cesium frequency standards and time code generators.

The new clock is so reliable that it would be off by less than a second if it had started running 100 million years ago, researchers say.

Clearly that’s not good enough for a clock at CERN, the European Laboratory for Nuclear Research, where [Daniel] works as an RF engineer. With access to a 10-MHz timebase from a cesium fountain ...

A new atomic clock at the National Institute of Standards and Technology in Boulder is helping researchers count seconds to ...

Microchip Technology has released the 5071B cesium atomic clock that can perform autonomous timekeeping for months in the event of GNSS denials. The 5071B is the next-generation commercial cesium ...

NIST-F4 measures an unchanging frequency in the heart of cesium atoms, the internationally agreed-upon basis for defining the second since 1967. The clock is based on a "fountain" design that ...

It has a 10-year lifetime compared to the five years offered by currently available high-performance magnetic clocks. As the market’s only high-performance optical cesium clock, the OSA 3300-HP sets a ...

Atomic clocks base their timekeeping on measuring the exact vibrations of individual atoms to designate a single second. To do this, a high-powered laser light is trained on an atom of cesium-133 ...