Measurements

An Introduction to Uncertainty in Measurement: Using the GUM by L. Kirkup, R. B. Frenkel

By L. Kirkup, R. B. Frenkel

Size shapes clinical theories, characterises advancements in production strategies and promotes effective trade. In live performance with size is uncertainty, and scholars in technology and engineering have to determine and quantify uncertainties within the measurements they make. This publication introduces dimension and uncertainty to moment and 3rd 12 months scholars of technology and engineering. Its procedure is determined by the the world over regarded and prompt guidance for calculating and expressing uncertainty (known through the acronym GUM). The facts underpinning the equipment are thought of and labored examples and workouts are unfold in the course of the textual content. certain case reports in response to usual undergraduate experiments are integrated to enhance the rules defined within the ebook. This advisor is usually worthy to pros in who're anticipated to understand the modern tools during this more and more vital zone. extra on-line assets can be found to aid the ebook at www.cambridge.org/9780521605793.

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Bleaney (1976), ‘Electricity and Magnetism, 3rd edn, Oxford, Oxford University Press. A. M. Thompson (1968), ‘An absolute determination of resistance based on a calculable standard of capacitance’, Metrologia, 4, 1–7. A. M. Thompson and D. G. Lampard (1956), ‘A new theorem in electrostatics and its application to calculable standards of capacitance’, Nature, 177, 888. Geometry-independence in the calculable capacitor is such that only a single distance needs to be measured. There are cases in electrical metrology where geometry-independence is complete, in the sense that the basic equations determining an electrical standard involve no length measurements at all.

5) N. Ashby (2002), ‘Relativity and the Global Positioning System’, Physics Today, May, 41–47. 1) B. I. Bleaney and B. Bleaney (1976), ‘Electricity and Magnetism, 3rd edn, Oxford, Oxford University Press. A. M. Thompson (1968), ‘An absolute determination of resistance based on a calculable standard of capacitance’, Metrologia, 4, 1–7. A. M. Thompson and D. G. Lampard (1956), ‘A new theorem in electrostatics and its application to calculable standards of capacitance’, Nature, 177, 888. Geometry-independence in the calculable capacitor is such that only a single distance needs to be measured.

1 m. The following question arises: what if the original figure ends in ‘5’? The recommended rounding advice is as follows: choose the even round value. 4 and so on. 5. 4 For more detail and discussion, see Australian Standard AS2706-2003, ‘Numerical values – rounding and interpretation of limiting values’ (Sydney, Standards Australia, 2nd edn, 2003). 3 Rounding and significant figures 23 When measurements are made, how many figures should be reported? Modern instruments are capable of displaying values to many figures.

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