Microchip has combined a chip-scale caesium atomic clock for good accuracy with a ovened crystal oscillator for good phase noise, in a through-hole package measuring 0.4 x 50.4 x 12.7mm (2 x 2 x ...
Recent research published in Physical Review Letters by PTB (Physikalisch-Technische Bundesanstalt) details the development of a new indium-ytterbium crystal optical clock, which achieves an accuracy ...
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Redefining the second: Optical atomic clock achieves record accuracy in comparison measurement
The next generation of atomic clocks "ticks" with the frequency of a laser. This is about 100,000 times faster than the microwave frequencies of the cesium clocks which are generating the second at ...
Most electronic clocks, be they analog or digital, use a crystal oscillator (XO) based on a 32.768 kHz crystal for their reference. In fact, it is same crystal that’s commonly used as a real-time ...
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