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| Author | : Frank Michael Hoehne |
| Publisher | : |
| Total Pages | : 160 |
| Release | : 2007 |
| Genre | : |
| ISBN | : |
| Author | : Robert Roithmeier |
| Publisher | : Carl Zeiss AG |
| Total Pages | : 111 |
| Release | : 2014-10-24 |
| Genre | : |
| ISBN | : |
Today, there is hardly any workpiece whose form parameters cannot be measured by means of coordinate measuring machines. The universal use of these machines allows a wide range of application of this technology which, however, increases inevitably the complexity of its handling. The numerous options of the machine-specific operating software on the one hand and the various theoretical considerations regarding a target-oriented treatment of measuring jobs on the other hand result in the fact that the measuring results obtained from the same coordinate measuring machine on the same workpiece under similar conditions may differ. In Order to increase the comparability of measuring results, it is necessary to provide the operators of coordinate measuring machines –in addition to a well-founded AUKOM training – with procedure options for planning, performing, evaluating and documenting measurements. This book by the ZEISS Metrology Academy makes a contribution towards achieving these targets.
| Author | : Jerzy A. Sładek |
| Publisher | : Springer |
| Total Pages | : 472 |
| Release | : 2015-12-22 |
| Genre | : Technology & Engineering |
| ISBN | : 366248465X |
This book focuses on effective methods for assessing the accuracy of both coordinate measuring systems and coordinate measurements. It mainly reports on original research work conducted by Sladek’s team at Cracow University of Technology’s Laboratory of Coordinate Metrology. The book describes the implementation of different methods, including artificial neural networks, the Matrix Method, the Monte Carlo method and the virtual CMM (Coordinate Measuring Machine), and demonstrates how these methods can be effectively used in practice to gauge the accuracy of coordinate measurements. Moreover, the book includes an introduction to the theory of measurement uncertainty and to key techniques for assessing measurement accuracy. All methods and tools are presented in detail, using suitable mathematical formulations and illustrated with numerous examples. The book fills an important gap in the literature, providing readers with an advanced text on a topic that has been rapidly developing in recent years. The book is intended for master and PhD students, as well as for metrology engineers working at industrial and research laboratories. It not only provides them with a solid background for using existing coordinate metrology methods; it is also meant to inspire them to develop the state-of-the-art technologies that will play an important role in supporting quality growth and innovation in advanced manufacturing.
| Author | : Shri Krishna Kimothi |
| Publisher | : Quality Press |
| Total Pages | : 398 |
| Release | : 2001-11-01 |
| Genre | : Business & Economics |
| ISBN | : 1636941818 |
The uncertainty of measurement results is drawing attention of managers, metrologists and customers. The accuracy of measurements affects all of us in trade, commerce, safety, health care environmental protection and more. The quality of these measurements are regulated by a variety of government agencies. Measurement also plays an important role in manufacturing and service organizations. Use this book to learn more about metrology and the need for reliable measurements. You can also learn about measurement system and quality of measurement systems, objectives and methods. Statistical techniques in metrology are also explained. Examples of measurement data and random variables, probability density functions, sampling distribution, statistical estimation degrees of freedom and regression are included. An entire chapter is devoted to measurement errors. The book goes in-depth into explaining national and international measurement systems and standards, and includes a complete chapter on calibration and measurement trace ability. Measurement Uncertainty will show how to evaluate various uncertainties in measurements using several approaches including international consensus. Calibration laboratories can look specifically at the chapter on that profession to guide them in their measurement improvements. Kimothi also looks at specific industries and their measurement capabilities and includes examples of R&R studies. A great resource for the CQE, CQT, CCT, CSSBB certification exams!
| Author | : Alistair B Forbes |
| Publisher | : World Scientific |
| Total Pages | : 460 |
| Release | : 2018-10-16 |
| Genre | : Mathematics |
| ISBN | : 981327431X |
This volume contains original, refereed contributions by researchers from institutions and laboratories across the world that are involved in metrology and testing. They were adapted from presentations made at the eleventh edition of the Advanced Mathematical and Computational Tools in Metrology and Testing conference held at the University of Strathclyde, Glasgow, in September 2017, organized by IMEKO Technical Committee 21, the National Physical Laboratory, UK, and the University of Strathclyde. The papers present new modeling approaches, algorithms and computational methods for analyzing data from metrology systems and for evaluation of the measurement uncertainty, and describe their applications in a wide range of measurement areas.This volume is useful to all researchers, engineers and practitioners who need to characterize the capabilities of measurement systems and evaluate measurement data. Through the papers written by experts working in leading institutions, it covers the latest computational approaches and describes applications to current measurement challenges in engineering, environment and life sciences.
| Author | : |
| Publisher | : |
| Total Pages | : 378 |
| Release | : 2008 |
| Genre | : Dissertations, Academic |
| ISBN | : |
| Author | : Franco Pavese |
| Publisher | : World Scientific |
| Total Pages | : 419 |
| Release | : 2009 |
| Genre | : Technology & Engineering |
| ISBN | : 9812839526 |
The main theme of the AMCTM 2008 conference, reinforced by the establishment of IMEKO TC21, was to provide a central opportunity for the metrology and testing community worldwide to engage with applied mathematicians, statisticians and software engineers working in the relevant fields. This review volume consists of reviewed papers prepared on the basis of the oral and poster presentations of the Conference participants. It covers all the general matters of advanced statistical modeling (e.g. uncertainty evaluation, experimental design, optimization, data analysis and applications, multiple measurands, correlation, etc.), metrology software (e.g. engineering aspects, requirements or specification, risk assessment, software development, software examination, software tools for data analysis, visualization, experiment control, best practice, standards, etc.), numerical methods (e.g. numerical data analysis, numerical simulations, inverse problems, uncertainty evaluation of numerical algorithms, applications, etc.), and data fusion techniques and design and analysis of inter-laboratory comparisons.
| Author | : Ronald H. Dieck |
| Publisher | : ISA |
| Total Pages | : 292 |
| Release | : 2007 |
| Genre | : Mathematics |
| ISBN | : 9781556179150 |
Literally an entire course between two covers, Measurement Uncertainty: Methods and Applications, Fourth Edition, presents engineering students with a comprehensive tutorial of measurement uncertainty methods in a logically categorized and readily utilized format. The new uncertainty technologies embodied in both U.S. and international standards have been incorporated into this text with a view toward understanding the strengths and weaknesses of both. The book is designed to also serve as a practical desk reference in situations that commonly confront an experimenter. The text presents the basics of the measurement uncertainty model, non-symmetrical systematic standard uncertainties, random standard uncertainties, the use of correlation, curve-fitting problems, and probability plotting, combining results from different test methods, calibration errors, and uncertainty propagation for both independent and dependent error sources. The author draws on years of experience in industry to direct special attention to the problem of developing confidence in uncertainty analysis results and using measurement uncertainty to select instrumentation systems.
| Author | : A.E. Fridman |
| Publisher | : Springer Science & Business Media |
| Total Pages | : 222 |
| Release | : 2011-11-23 |
| Genre | : Technology & Engineering |
| ISBN | : 1461414784 |
This monograph and translation from the Russian describes in detail and comments on the fundamentals of metrology. The basic concepts of metrology, the principles of the International System of Units SI, the theory of measurement uncertainty, the new methodology of estimation of measurement accuracy on the basis of the uncertainty concept, as well as the methods for processing measurement results and estimating their uncertainty are discussed from the modern position. It is shown that the uncertainty concept is compatible with the classical theory of accuracy. The theory of random uncertainties is supplemented with their most general description on the basis of generalized normal distribution; the instrumental systematic errors are presented in connection with the methodology of normalization of the metrological characteristics of measuring instruments. The information about modern systems of traceability is given. All discussed theoretical principles and calculation methods are illustrated with examples.
| Author | : S. V. Gupta |
| Publisher | : Springer Science & Business Media |
| Total Pages | : 336 |
| Release | : 2012-01-13 |
| Genre | : Technology & Engineering |
| ISBN | : 3642209890 |
This book fulfills the global need to evaluate measurement results along with the associated uncertainty. In the book, together with the details of uncertainty calculations for many physical parameters, probability distributions and their properties are discussed. Definitions of various terms are given and will help the practicing metrologists to grasp the subject. The book helps to establish international standards for the evaluation of the quality of raw data obtained from various laboratories for interpreting the results of various national metrology institutes in an international inter-comparisons. For the routine calibration of instruments, a new idea for the use of pooled variance is introduced. The uncertainty calculations are explained for (i) independent linear inputs, (ii) non-linear inputs and (iii) correlated inputs. The merits and limitations of the Guide to the Expression of Uncertainty in Measurement (GUM) are discussed. Monte Carlo methods for the derivation of the output distribution from the input distributions are introduced. The Bayesian alternative for calculation of expanded uncertainty is included. A large number of numerical examples is included.
