Measurement of values is fundamental in science and technology, and it plays a major role in our everyday lives. Measurement, Uncertainty and Lasers examines the importance of uncertainty, accuracy and precision of measurement, and explains how laser technology has helped improve measurement and redefine standards. Concepts of measurement uncertainty, in both a qualitative and quantitative manner, are introduced and key equations, formulae and qualitative descriptions are included. This book discusses SI units, standards and the importance of using lasers for measurement in modern metrology, including the redefinition of SI units over time, which recently culminated in the agreement to redefine the kilogram and will take effect in May 2019. Real-life case studies are also provided; from the implications for measuring times at the Olympics, to the impacts in criminal investigations.
Spis treści
Chapter 1: All measurements have uncertainties
Chapter 2 What is measurement uncertainty?
Chapter 3 Units of physical values and their definitions until 1960
Chapter 4 Lasers revolutionised physics
Chapter 5 Revolution of measurement uncertainties due to the introduction of lasers
Chapter 6 Measurement uncertainties and physics
Chapter 7 Conclusion
O autorze
Born and raised in Nagoya, Japan, Dr Kajita graduated from the Department of Applied Physics, at the University of Tokyo in 1981 and obtained his Ph. D. from the Department of Physics, at the University of Tokyo in 1986. After working at the Institute for Molecular Science, he joined the Communications Research Laboratory (CRL) in 1989. In 2004, the CRL was renamed the National Institute of Information and Communications Technology (NICT). In 2009, he was guest professor at the Provence Universite, Marseille, France.
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