Results 21 to 30 of about 100,185 (141)
Characteristics analysis of compact cesium atomic clock with magnetic state selection
Frontiers in Physics, 2022 This paper introduces a compact magnetic state-selection cesium atomic clock called LIP Cs-3000 and analyses its characteristics. The test results reveal that the ranges of the line width, peak-to-valley ratio and signal-to-noise ratio of Ramsey pattern ...
Jiang Chen +12 more
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Why do we need a Polish miniature time reference for space and military applications? [PDF]
Przegląd Komunikacyjny: The paper presents an overview of atomic clock solutions developed in leading scientific and commercial teams of the world. The construction of a Polish atomic clock is proposed, giving the names of scientific units that can participate in it ...
Paweł Knapkiewicz
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Evaluation of BDS-2 and BDS-3 Satellite Atomic Clock Products and Their Effects on Positioning
Remote Sensing, 2021 The BeiDou Navigation Satellite System (BDS) has completed third phase construction and currently provides global services, with a mixed constellation of BDS-2 and BDS-3. The newly launched BDS-3 satellites are equipped with rubidium and passive hydrogen
Shengfeng Gu +5 more
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OPTIS - a satellite-based test of Special and General Relativity [PDF]
, 2001 A new satellite based test of Special and General Relativity is proposed. For the Michelson-Morley experiment we expect an improvement of at least three orders of magnitude, and for the Kennedy-Thorndike experiment an improvement of more than one order ...
+14 more
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A study of clock effects in Newton–Maxwell formalism
Geodesy and Geodynamics, 2020 Many measurements on the time gain/loss of the atomic clocks orbiting the spinning Earth have been done. The time gain/loss of the atomic clocks orbiting the spinning Earth is called gravitomagnetic clock effects.
Sankar Hajra
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Frontiers in Earth Science, 2023 Determination of the Earth’s gravity field and geopotential value is one of the fundamental topics in physical geodesy. Traditional terrestrial gravity and precise leveling measurements can be used to determine the geopotential values at a local or ...
Mohammad Bagherbandi +4 more
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Construction of optical system for an atomic clock-beyond atomic fountain
Frontiers in Physics, 2022 We demonstrate the construction of the optical system in the atomic clock-beyond atomic fountain based on 87Rb atom. The optical system includes a high-stability laser system and an optical lattice.
Xiumei Wang +21 more
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Frontiers in Physics, 2022 The research of optically pumped cesium beam atomic clock (OPCB) at Peking University has lasted for decades. At present, the short-term frequency stability is 3×10−12/τ and the long-term (5-day) frequency stability can reach 7 × 10−15.
Xuan He +6 more
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Active optical clock based on four-level quantum system [PDF]
, 2012 Active optical clock, a new conception of atomic clock, has been proposed recently. In this report, we propose a scheme of active optical clock based on four-level quantum system.
A C Ji +26 more
core +2 more sources
A low phase noise microwave source for high‐performance CPT Rb atomic clock
Electronics Letters, 2021 Phase noise of the frequency synthesizer is one of the main limitations to the short‐term stability of microwave atomic clocks. Here, a low‐noise, simple‐architecture microwave frequency synthesizer for a coherent population trapping (CPT) clock is ...
Xiaodong Li +10 more
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