PPT-Measurement Uncertainty in Testing: What it is and what its for

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Uncertainty Essentials Les Coveney INAB Calibration amp Uncertainty Day 18th June 2018 Les Coveney INAB Calibration amp Uncertainty Day 18th June 2018 Uncertainty

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Measurement Uncertainty in Testing: What it is and what its for: Transcript


Uncertainty Essentials Les Coveney INAB Calibration amp Uncertainty Day 18th June 2018 Les Coveney INAB Calibration amp Uncertainty Day 18th June 2018 Uncertainty Essentials Definition of Measurement Uncertainty. Phys. Accuracy and Precision. The . accuracy. of a measurement tells you how close the measurement is to the “true” or accepted value. . The . precision. of a measurement tells you something about the . Uncertain. Low-Level . Measurements . Presented to the Savannah River Chapter of the Health Physics Society. Aiken, South Carolina, 2011 April 15. Daniel J. . Strom, Kevin E. Joyce, Jay A. . MacLellan. The Realm of physics. Measurement and uncertainties. Extra Book. Physics: for use with the IB Diploma Program. By Michael J Dickinson. ISBN: 9781475130010. Hertz Hz frequency s. -1. . Coulomb C Electric charge As . in Precipitation Data Records. Yudong Tian. Collaborators: Ling Tang, Bob Adler, George Huffman, . Xin Lin, Fang Yan, Viviana Maggioni and Matt Sapiano.  . University of Maryland & NASA/GSFC. http://sigma.umd.edu. in Measurement. (IB text - Ch 11; AP text - section 1.4 pgs. 10-13 and A10-A13). All measurements have some degree of . uncertainty. . Therefore, we need to give some indication of the reliability of measurements and the uncertainties in the results calculated from these measurements. . An Introduction to Uncertainty Analysis. Error Sources. The measurement process consists of three dis-tinct steps: calibration, data acquisition, and data reduction. calibration error. data acquisition error. environmental research. Liew Xuan Qi (A0157765N). Cheong Hui Ping (A0127945W). Hong Chuan Yin (A0155305M). Best Practice Approaches for Characterizing, Communicating, and Incorporating Scientific Uncertainty in Climate Decision Making. OUTLINE. Accelerator Pre-alignment background. Uncertainty and GUM supplement 1. PACMAN pre-alignment budgeting . CMM uncertainty modeling. Thermal uncertainty compensation and modeling. First stochastic modeling results. Accuracy vs. Precision. What is the difference?. Accuracy vs. Precision. Precision . accuracy. Exactness. Divisions on scale. Reproducibility. Uncertainty. Significant digits. Correctness. Calibration. www.chemactive.com. IB Chemistry HL. 2009/2010. 11.1 Uncertainty and error in measurement. 11.2 Uncertainties in calculated results. 11.3 Graphical techniques. www.chemactive.com. Measurement and data processing. 1.2 – Uncertainties and errors. Essential idea:. . Scientists aim towards designing experiments that can give a “true value” from their measurements, but due to the limited precision in measuring devices, they often quote their results with some form of uncertainty.. Zhijiong. Dennis . Huang. a. , . Junyu. Allen . Zheng. a. , . Yongtao. Hu. b. a. Institute. for Environmental and Climate Research, Jinan University. b. School. of Civil and Environmental Engineering, Georgia Institute of Technology. Jean-Luc DUFOUR, Nicolas PEPIN, Clément . DEYGLUN, Anne-Laure WEBER. Institut. de Radioprotection et de . Sûreté. Nucléaire. Jean-luc.dufour@irsn.fr. Optimization of the traditional enrichment meter method applied to uranium enrichment measurement in 30B and 48Y UF6 cylinders. . A. KHINE. DIVISION OF CHEMICAL PATHOLOGY. NHLS TYGERBERG . STELLENBOSCH UNIVERSITY. Laboratory Management workshop 3-6 June 2019. MEASUREMENT UNCERTAINTY. is a parameter, associated with the result of a measurement… that defines the range of the values that could reasonably be attributed to the measured quantity (UKAS).

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