Metrology

    Page 1 of 2 - About 16 Essays
  • International Prototype Kilogram Essay

    The current standard for the kilogram is the International Prototype Kilogram. The International Prototype Kilogram, also known as Le Grand K, is a platinum-iridium bar made in the 1880’s. This official Kilogram is kept in a vault in Paris under two glass domes. The reason it is under 2 glass domes it to prevent dust from obstructing from the weight of the Kilogram. However according to Sandia National Laboratories, a government organization under the Department of Energy, “Of the seven units of measurement in the International System, or SI, the kilogram is the only base still defined by a physical object. In addition, copies of the kilogram have changed over time by either gaining or losing weight as compared to the standard kilogram.”(DOE/Sandia National Laboratories). Forty identical replicas of Le Grand K were distributed by the International Bureau of Weights and Measures and all Forty seem to be on average Fifty micrograms heavier than the International Prototype Kilogram. Therefore the current standard of the kilogram is becoming more relative then concrete and Scientist believe that something must be done about it The scientist at Newcastle University have developed a sophisticated way to clean all Forty-one Kilograms. The process is to expose the kilograms to ultraviolet light and ozone about once per decade and rinse with pure water to remove dust particles. “Peter Cumpson a metrologist at Newcastle University tested the process using prototype metals, including…

    Words: 808 - Pages: 4
  • Elekta Synergy S Linear Accelerator Lab Analysis

    Elekta Synergy S linear accelerator (LINAC) was used to produce the 6, 10, and 15MV photon beams for measurements. The accelerator is fitted with the new Agility multileaf collimators (MLC) thinner than the previously used MLC’s to improve a field definition (Kantz et al. 2015; Thompson et al. 2014). The quality assurance was carried out monthly to ensure the LINAC response does not vary from the commissioning data (CPQR 2013). The LINAC has been calibrated to 100 cGy/MU at Dmax for a 10×10…

    Words: 1563 - Pages: 7
  • ASTM Standards: Consensus Standards For Systems, Services, Materials And Product

    ASTM STANDARDS Short introduction – ASTM standards are consensus standards for systems, services, materials and products. ‘ASTM International’ is one of the largest voluntary standard developing organization in the world. It is a non-profit organization that provides a forum for the development and publication of international voluntary standards. There are approximately 12,575 ASTM standards that operate globally. TESTING ASTM STANDARDS- Scope- There test methods help in the determining of…

    Words: 1261 - Pages: 6
  • Analysis Of The Indiana State K-6 Physical Science Standards

    I organized all of the Indiana State K-6 Physical Science Standards to where I believed they belonged within the five units we go over in P199. For the Forces and Motion; Measurement unit I placed standards 2.1.4, 2.1.5, 2.1.6, 2.1.7, 5.1.1, 5.1.2, 5.1.3, 6.1.4, 6.1.5, and 6.1.6. For Physical Properties I placed K.1.1, K.1.2, 1.1.1, 1.1.2, 1.1.3, 2.1.3, 6.1.1, and 6.1.2. Within the Physical Changes; Electricity and Magnetism unit I organized standards 2.1.1, 4.1.3, 4.1.4, 4.1.5, 5.1.4, and…

    Words: 718 - Pages: 3
  • Linear Differential Concentration And Damping Factors

    Introduction The main objective of this lab is to observe the behavior of a metal block while experiencing uniaxial translation and oscillation in respects to time to calculate the acceleration, spring constant, and damping factor. The experiment was split into two different labs. Part one, the drop test, to take the block to a fixed height and drop it. This would then allow us to calculate the friction force, along with the acceleration of the metal block. Part two, the bounce test, is…

    Words: 2010 - Pages: 9
  • Pestle Analysis Iron

    Several accusations were made that manufacturers were incorrectly labeling the iron content on their products. The purpose of this experiment was to analyze the amount of iron in approximately one serving of Total Whole Grain cereal and in one iron tablet and determine if these accusations were true. The values collected would then be compared to the actual values for these products. Total cereal contains 100% of the recommended daily allowance for iron, and the iron tablet contains 361% of the…

    Words: 1625 - Pages: 7
  • Discrete Element Methods

    Obtaining a fundamental understanding of the underlying physics of granular systems is important both for academic interest and industrial applications. Experimental measurements in full three-dimensional (3D) large industry scale granular system are complicated and expensive. Computational techniques such as the Discrete Element Method (DEM) can potentially be applied as a tool to provide understanding granular machine systems dynamics, virtual equipment design and evaluation of machine…

    Words: 918 - Pages: 4
  • Medical Measurement Analysis

    Response Essay: How Measurement Fails Doctors and Teachers This essay will cover the topic of measurement and analytics in the medical and educational sectors and how it is negatively impacting each one respectively. I personally agree with the writer’s viewpoint and feel as though our current methods of measurement in both the healthcare and educational fields are incorrect; with issues and metrics of greater importance being overlooked due to an excessive amount of measurement. However, the…

    Words: 1365 - Pages: 6
  • Calibration Lab Report Essay

    The calibration curve observed in this investigation was the relationship measured between the concentration of the cobalt solution, or CO(NO3)2, and the absorbance of the wavelength. As it was impossible to measure the true standard curve, the data points and subsequent graphs demonstrated the qualitative information collected and the trend of these values. The calibration curve closely resembled a straight line, with only minimal deviations in either direction. This indicated that the…

    Words: 771 - Pages: 4
  • Professor Ping Koy Poem: Mathematics, Physics And Music

    in 1999. He was also awarded the 2003 British Council Eureka Prize for inspiring science (Quantum Teleportation, a process by which quantum information can be transmitted from one location to another) and the 2006 UNSW Eureka Prize for innovative research (Quantum Cryptography, the science of exploiting quantum mechanical properties to perform cryptographic tasks). Later on, he was an Alexander von Humboldt fellow at the Erlangen-Nürnberg Universität in 2000 and a CNRS visiting professor at…

    Words: 1000 - Pages: 4
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