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In addition to increased accuracy, the development of chip-scale atomic clocks has expanded the number of places atomic clocks can be used. In August 2004, NIST scientists demonstrated a chip-scale atomic clock that was 100 times smaller than an ordinary atomic clock and had a much smaller power consumption of 125 mW .
In this type, the watch's quartz oscillator is set to the correct time daily by coded radio time signals broadcast by government-operated time stations such as JJY, MSF, RBU, DCF77, and WWVB, [49] [50] received by a radio receiver in the watch. This allows the watch to have the same long-term accuracy as the atomic clocks which control the time ...
A modern LF radio-controlled clock. A radio clock or radio-controlled clock (RCC), and often colloquially (and incorrectly [1]) referred to as an "atomic clock", is a type of quartz clock or watch that is automatically synchronized to a time code transmitted by a radio transmitter connected to a time standard such as an atomic clock.
Its atomic timepieces use chip scale atomic clock technology, [14] where a small vessel of Caesium 133 is exposed to 130 °C. [15] A laser is used to excite the atoms and a microwave resonator which causes the hyperfine transition frequency of the atoms. The resultant watch after this process has a higher accuracy of 1.5 seconds every thousand ...
This is a list of some experimental laboratory atomic clocks worldwide. This list is incomplete; you can help by adding missing items. (March 2013) Name
A Casio Wave Ceptor WV-200DE watch. The Multi-Band 5 indicates that it can receive time calibration signals from five radio towers in the world The Wave Ceptor series (stylized as WAVE CEPTOR or WaveCeptor ) is a line of radio-controlled watches by Casio .