Metrology
Metrology

Author: National Aeronautics and Space Administration (NASA)

Publisher: Createspace Independent Publishing Platform

Published: 2018-07-18

Total Pages: 106

ISBN-13: 9781723207105

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The 5300.4 series of NASA Handbooks for Reliability and Quality Assurance Programs have provisions for the establishment and utilization of a documented metrology system to control measurement processes and to provide objective evidence of quality conformance. The intent of these provisions is to assure consistency and conformance to specifications and tolerances of equipment, systems, materials, and processes procured and/or used by NASA, its international partners, contractors, subcontractors, and suppliers. This Measurement Assurance Program (MAP) guideline has the specific objectives to: (1) ensure the quality of measurements made within NASA programs; (2) establish realistic measurement process uncertainties; (3) maintain continuous control over the measurement processes; and (4) ensure measurement compatibility among NASA facilities. The publication addresses MAP methods as applied within and among NASA installations and serves as a guide to: control measurement processes at the local level (one facility); conduct measurement assurance programs in which a number of field installations are joint participants; and conduct measurement integrity (round robin) experiments in which a number of field installations participate to assess the overall quality of particular measurement processes at a point in time. Eicke, W. G. and Riley, J. P. and Riley, K. J. Kennedy Space Center CALIBRATING; CONSISTENCY; HANDBOOKS; METROLOGY; QUALITY CONTROL; COMPATIBILITY; CONTRACTORS; COST EFFECTIVENESS; NASA PROGRAMS; RELIABILITY...

The Gauge Block Handbook
The Gauge Block Handbook

Author: Ted Doiron

Publisher: Createspace Independent Publishing Platform

Published: 2014-02-19

Total Pages: 146

ISBN-13: 9781495431944

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This handbook is a both a description of the current practice at the National Institute of Standards and Technology, and a compilation of the theory and lore of gauge block calibration. Most of the chapters are nearly self-contained so that the interested reader can, for example, get information on the cleaning and handling of gauge blocks without having to read the chapters on measurement schemes or process control, etc. This partitioning of the material has led to some unavoidable repetition of material between chapters. The basic structure of the handbook is from the theoretical to the practical. Chapter 1: basic concepts and definitions of length and units; Chapter 2: history of gauge blocks, appropriate definitions and a discussion of pertinent national and international standards; Chapter 3: physical characteristics of gauge blocks, including thermal, mechanical and optical properties; Chapter 4: a description of statistical process control (SPC) and measurement assurance (MA) concepts; and Chapters 5 and 6: details of the mechanical comparisons and interferometric techniques used for gauge block calibrations. Full discussions of the related uncertainties and corrections are included. Finally, the appendices cover in more detail some important topics in metrology and gauge block calibration.

The Uncertainty of Measurements
The Uncertainty of Measurements

Author: Shri Krishna Kimothi

Publisher: Quality Press

Published: 2001-11-01

Total Pages: 398

ISBN-13: 1636941818

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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!

Weights and Measures Program Requirements
Weights and Measures Program Requirements

Author: Carol Hockert

Publisher: DIANE Publishing

Published: 2011-08

Total Pages: 93

ISBN-13: 1437983030

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When a W&MA makes decisions within a specific jurisdiction, it is beneficial to understand the scope of the entire system and to reflect upon methods and practices that have been tested over the years. This handbook was developed for the W&MA to be used as a reference tool. It is designed to be read in sections as needed for a specific situation or to learn piece by piece about the weights and measures system as a whole. The weights and measures infrastructure includes the following: Standards and Units; Laws, Regulations, and Practices; Metrology Lab¿s.; Weighing and Measuring Devices; Packaged Products; Service Industries; Weights and Measures Regulation; and Commercial Transactions. Charts and tables. This is a print on demand report.