A unified theory of measurement errors and uncertainties

Huang, Hening

doi:10.1088/1361-6501/aae50f

Cited by 26 publications

(24 citation statements)

References 52 publications

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“…Despite much that was subsequently published about measurement accuracy in the nineteenth century e.g. [80][81][82][83][84][85], it remains both a topic for discussion and also confusion for students of the sciences to the present day [86][87][88].…”

Section: Mid-nineteenth Century Terminal Ballistics Experimentsmentioning

confidence: 99%

Highways and Byways in the History of High Rate Mechanical Testing

Walley

2020

J. dynamic behavior mater.

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Up until the Industrial Revolution, the dynamic mechanical properties of materials were only of importance in warfare, particularly after the powder-driven gun was invented. With the invention of the steam engine, the explosion of steam boilers (which is similar to the explosion of cannon) became a concern. When railways began to be built, the lack of knowledge of the dynamic properties of the iron alloys used in rails and railway bridges was understood to be a problem, but no way of measuring them was devised until the end of the nineteenth century. Ingenious mechanical (and later electromechanical) methods of recording signals onto rotating drums or moving smoked glass plates began to be developed from the middle of the nineteenth century onwards. Optical/photographic methods of recording information from dynamic experiments date from the 1890s. The rod-on-anvil technique (later named after Taylor) was developed in France at the beginning of the twentieth century but not mathematically analysed until the 1940s. The Hopkinson pressure bar was invented just before the start of the First World War and found to be useful in improving British artillery shells. It was then forgotten about until the Second World War when a two-bar version was developed for measuring the dynamic properties of soft materials such as explosives and polyethylene. As the story of high rate mechanical testing from about 1950 onwards is quite well known to the high rate testing community, this date is taken as the end point of this article. Keywords Isaac Newton • Ballistics • Taylor impact • Hopkinson bar • Spall • Adiabatic shear band Note on Imperial Units of Measurement Some quotes in this article are taken from British and American sources where Imperial Units of length and weight were used. For those unfamiliar with these units, the (approximate) conversion factors to the metric system are as follows: 1 in. is 25 mm; 1 ft. (= 12 in.) is 305 mm; 1 lb (abbreviation lb.) is 0.45 kg; 1 (British) ton (= 2240 lbs) is 1008 kg).

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Section: Mid-nineteenth Century Terminal Ballistics Experimentsmentioning

confidence: 99%

Highways and Byways in the History of High Rate Mechanical Testing

Walley

2020

J. dynamic behavior mater.

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“…To provide a fair comparison between characterization techniques, a figure of merit is needed. One of the most common approaches to ascertain the validity of a measurement method is by analyzing the error, the uncertainty, or other statistical measure of the deviations of the obtained results [15][16][17][18][19][20][21][22]. Many of the mentioned published measurements fail to provide a proper quantification of this deviation [1][2][3]9].…”

Section: Introductionmentioning

confidence: 99%

“…On top of that, even when an estimation of the accuracy of a measurement is provided, in most cases the statistical distribution of the uncertainties is needed. This knowledge is often not given by the manufacturers and has to be assumed [18]. To avoid such problems, sometimes a Monte-Carlo analysis is performed, using simulation models of the magnetic component under test and the instrumentation.…”

Section: Introductionmentioning

confidence: 99%

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Comparison of Different Large Signal Measurement Setups for High Frequency Inductors

et al. 2021

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The growing interest of miniaturized power converters has pushed the development of high frequency inductors integrated in Power Supply on Chip or Power Supply in Package. The proper characterization of inductor impedance is a challenge due to the dependence of the impedance on the current, the high quality factor (Q) and the high frequency range where these devices operate. In this paper, we present a comparison of different measuring methods to characterize high frequency and high Q inductors. The comparison is based on a systematic analysis of the measurement process, quantifying the influence of the parameters that affect the measurement result. Four common measurement setups are analyzed and compared. To validate the calculations, the resistance of a high frequency, high-Q inductor is characterized using every presented setup. The good match between calculations, simulation and measurement validates the analysis and the conclusions extracted.

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“…Para poder realizar la comparativa entre los diferentes métodos de medida es necesario emplear una figura de mérito. Una de las aproximaciones más comunes consiste en valorar la precisión del procedimiento de medida mediante un análisis de su error, su incertidumbre, o cualquier medida estadística de la desviación en los resultados [70][71][72][73][74][75][76][77]. Muchos de los métodos presentados no aportan estimaciones apropiadas de estas medidas de desviación [15,22,58,64].…”

Section: Introductionunclassified

Integrated inductor optimization for Power Supply on Chip

Lopez

Fernández

Zumel

et al. 2018

2018 IEEE 19th Workshop on Control and Modeling for Power Electronics (COMPEL)

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A todos mis compañeros, por haber hecho no sólo soportable, sino disfrutable, el camino. A los compañeros del máster, especialmente a Carlos, por convertir Madrid en el punto de unión entre dos tierras castellanas. A los compañeros del despacho, tanto a los que ya no están entre nosotros como a los que, por desgracia, aún no han podido irse. A los compañeros del grupo de óptica, que creen que pW significa poderosísimos vatios.A mis colegas irlandeses, en especial a Ruaidhrí, que añadieron a mi dificultad para memorizar nombres la dificultad para escribirlos.A los técnicos del departamento. Especialmente a little Jesus, por enseñarme a soldar, y a big Jesus, por enseñarme a resoldar.A mis tutores. A Pablo por haber iniciado esto y a Cristina por haberlo terminado.A mis padres, que creyeron que estaba eligiendo una vida monacal y tuvieron que lidiar con la apostasía.A Alba, por haber encontrado a un ingeniero tan guapo, tan alto, tan inteligente y tan divertido, y aún así haberse quedado conmigo. Sigues siendo la mejor parte de mí, que soy tu peor parte.

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A unified theory of measurement errors and uncertainties

Cited by 26 publications

References 52 publications

Highways and Byways in the History of High Rate Mechanical Testing

Highways and Byways in the History of High Rate Mechanical Testing

Comparison of Different Large Signal Measurement Setups for High Frequency Inductors

Integrated inductor optimization for Power Supply on Chip

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