PPT-Precision Measurements

after the Higgs Discovery MV Chizhov Sofia University Bulgaria and JINR Russia 09062014 2 Why do we need the Higgs boson S ½ S 1 S 0 09062014 Harmonic Oscillator Analytical . 1 02 03 04 05 06 07 08 09 1 Measured Value of x Fraction of Total Measurements SD 01 SD 02 SD 03 brPage 5br mean standard deviation histogram Figure 3 Mass of Unknown Sample 102 104 106 108 11 112 114 116 118 12 Mass kg of Measurements brPage 6br for megawatt heating controls Precision power measurements carried out using Yokogawa’s DL850 ScopeCorder are playing a key part in the development of high-current power controllers by AEG Po Chapter 1 Section 2. Accuracy. describes how close a measured value is to the true value of the quantity measured. . . a.k.a. “the right answer”, or the agreed upon answer (“consensus” among scientists). Variable is a factor that affects the outcome of an experiment.. 3 Types of variables. Experimental/ Independent Variable. The variable that you change . Dependent Variable. The variable that you measure. Chapter 1 Section 2. Accuracy. describes how close a measured value is to the true value of the quantity measured. . . a.k.a. “the right answer”, or the agreed upon answer (“consensus” among scientists). Precision. Accuracy. Error Types. Significant Digits. Error Propagation. Error in Measurement.  . "Accuracy" means truth.. "Precision" means detail..  . Accuracy. Accurate: measured value very close to actual value.. potential field methods. Jeannot Trampert. GausS. ’ Theorem. For any vector F. STOKES’ Theorem. For any vector F. Potential field theory. A. force F derives from a scalar potential . Φ. if . The work done by force F (see Stokes) . 14. CO. 2. ) at and below ambient levels. D. A. Long, . A. J. Fleisher, Q. Liu, and J. T. Hodges. National Institute of Standards and Technology. Gaithersburg, Maryland. HDR Architecture, Inc.. Long-lived isotope of carbon (half-life 5,730 years). When taking scientific measurements, the goals are to measure . accurately. and with . precision. .. Accuracy. . refers to how close a measured value is to the actual or real . value. Precision. . . Measurements help us describe the world and everything in it.. Measurements can describe length, volume, weight, time, temperature, and countless other properties.. . Standardized Unit System. Metric system and the English system. 1 Accuracy and Precision Notes Chemistry 1 2 Uncertainty in Measurements There is no such thing as a perfect measurement! All measurements have a degree of uncertainty because Instruments have flaws Accuracy of a measurement:. An indication of how close the measurement is to the accepted value. Percentage difference can be calculated to give a quantitative indication of a measurement’s accuracy—the smaller the percentage difference, the greater the . Herwig. . Schopper’s. 90. th. birthday. John Ellis. (King’s College London & CERN). LEP1: the Ascent of the Standard Model. The Historical Context - I. 1964 – The . Englert. -. Brout. -Higgs mechanism. Battery management systems. 1. Reference Designs / Collateral. Automotive High-Voltage and Isolation Leakage Measurements Ref. Design. Leakage Current Measurement Ref. Design for determining Insulation Resistance.