Metrology And Fundamental Constants
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Metrology and Fundamental Constants
Author | : Theo W. Hänsch |
Publsiher | : IOS Press |
Total Pages | : 683 |
Release | : 2007 |
Genre | : Computers |
ISBN | : 9781586037840 |
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One of the exciting characteristics of metrology is its intimate relationship between fundamental physics and the leading edge of technology which is needed to perform advanced and challenging experiments and measurements. This title includes a set of lectures which present the relevant progress in Metrology.
Recent Advances in Metrology and Fundamental Constants
Author | : T.J. Quinn,S. Leschiutta |
Publsiher | : IOS Press |
Total Pages | : 836 |
Release | : 2001-12-18 |
Genre | : Science |
ISBN | : 9781614990024 |
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The exchange between physics and metrology is always fascinating and exciting. Many are the open problems in physics that call for extremely precise standards, many are the advances in metrology made possible by a deep and assiduous study of the underlying physics. One has just to think of the enormous sophistication required in the measurements of some absolute quantities such as the Avogadro, the gas, or the gravitational constants. It is also worth noticing that not only the units of a metrological system are interrelated through the fundamental constants, but also the latter find their full significance when they are determined through the most exacting metrological experiments. Over the past decade many improvements took place and these are discussed in this book; from one side the old caesium SI second definition has found a new realisation, with the “fountain” approach, replacing the classical thermal atomic beam. The use of “cold” atom techniques, in which bunches of inert atoms are collected, slowed down, and cooled, has opened a number of new and unexpected avenues for metrology and fundamental constants; one of these possibilities being the atom interferometry. Another important “quantum jump” was the demonstration of the possibility of performing a direct frequency division in the visible, using ultra short femtosecond pulses. In addition, the possibility of “counting” electrons or photons gave a fundamental support to the development of single-electron capacitance standards and to new scenarios in the absolute calibration of photo-detectors.
Metrology and Physical Constants
Author | : A. Di Giuseppe |
Publsiher | : IOS Press |
Total Pages | : 567 |
Release | : 2013-10-21 |
Genre | : Science |
ISBN | : 9781614993261 |
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The reliability and accuracy of systems of measurement continue to advance. We are about to enter a period of the most stable measurement system we can imagine with the anticipated new definitions of the SI units of measurement; a direct link between fundamental physics and metrology which will eliminate the current definition of the kilogram, until now based upon an artifact. This book presents selected papers from Course 185 of the Enrico Fermi International School of Physics, held in Varenna, Italy, in July 2012 and jointly organized with the Bureau International des Poids et Mesures (BIPM). The papers delivered at the school covered some of the most advanced topics in the discipline of metrology, including nano-technologies; quantum information and quantum devices; biology and medicine; food; surface quality; ionising radiation for health, environment, art and archaeology; and climate. The continuous and striking advances in basic research concerning atomic frequency standards operating both in the visible range and at microwave levels and the applications to satellite systems are also considered, in the framework of a historical review of the international organization of metrology, as are the problems inherent in uncertainty statements and definitions. This book will be of interest to all those whose work involves scientific measurement at the highest levels of accuracy.
Quantum Metrology and Fundamental Physical Constants
Author | : A.A. Lucas,Paul H. Cutler,A. North |
Publsiher | : Springer Science & Business Media |
Total Pages | : 647 |
Release | : 2013-12-01 |
Genre | : Science |
ISBN | : 9781489921451 |
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The object of this NATO Advanced Study Institute was to pre sent a tutorial 'introduction both to the basic physics of recent spectacular advances achieved in the field of metrology and to the determination of fundamental physical constants. When humans began to qualify their description of natural phenomena, metrology, the science of measurement, developed along side geometry and mathematics. However, flam antiquity to modern times, the role of metrology was mostly restricted to the need of commercial, social or scientific transactions of local or at most national scope. Beginning with the Renaissance, and particularly in western Europe during the last century, metrology rapidly developed an international character as a result of growing needs for more accurate measurements and common standards in the emerging indus trial society. Although the concerns of metrology are deeply rooted to fundamental sciences, it was, until recently, perceived by much of the scientific community as mostly custodial in character.
Metrology and Fundamental Constants
Author | : Theo W. Hänsch,Società italiana di fisica |
Publsiher | : Unknown |
Total Pages | : 649 |
Release | : 2007 |
Genre | : Science |
ISBN | : 1435677811 |
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Precision Measurement and Fundamental Constants Proceedings
Author | : B. N. Taylor,D. N. Langenberg |
Publsiher | : Unknown |
Total Pages | : 586 |
Release | : 1971 |
Genre | : Physical measurements |
ISBN | : UOM:39015012316140 |
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Gravitational Measurements Fundamental Metrology and Constants
Author | : V. de Sabbata,Vitaly N. Melnikov |
Publsiher | : Springer Science & Business Media |
Total Pages | : 547 |
Release | : 2012-12-06 |
Genre | : Science |
ISBN | : 9789400929555 |
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Proceedings of the NATO Advanced Study Institute, Erice, Italy, May 2-12, 1987
The Fundamental Physical Constants and the Frontier of Measurement
Author | : Brian William Petley |
Publsiher | : CRC Press |
Total Pages | : 368 |
Release | : 1988 |
Genre | : Physical constants |
ISBN | : UCAL:B4513865 |
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Fundamental physical constants are used throughout the world by scientists and technologists in the course of every kind of theoretical and experimental research work. The book examines the present state of the measurement arts, and gives indications of likely future developments. This comprehensive and stimulating volume will certainly become a standard reference work in the field of measurement science for physicists, metrologists and workers in other physical science disciplines where a high accuracy of measurement is required.