Download or read book Total and Partial Pressure Measurement in Vacuum Systems written by John Henry Leck and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 208 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book deals with the underlying theory and practical aspects of pressure gauges that are at present in general use. Because of the ever-increasing demands to provide a wider range of sophisticated and reliable vacuum equipment a good understanding of these instruments is of vital importance to all workers in the research and industrial sectors. Of the gauges considered only the mechanical types are absolute, in the sense that they measure pressure directly as a force upon a liquid column or a solid surface. Under ideal conditions it is possible to calculate their sensitiv ities, which are the same for all gases and vapours. The recent developments in the viscous or molecular damping gauges indicate that these may also be considered absolute. Other gauges are indirect in that they involve the measurement of some secondary phenomenon which is pressure-dependent and therefore these gauges can only be used for measurement after calibration against an absolute standard. The radiometer or Knudsen type gauge has been excluded from the text since these are now only of historic interest. Also no mention is made of the integration techniques involving surface changes (such as work function) although these could have application under very special circumstances. The McLeod gauge is dealt with in some detail, for even though this gauge has few practical applications, it is the most sensitive absolute gauge available and has value as a reference standard.
Download or read book Pressure Measurement in Vacuum Systems written by John Henry Leck and published by . This book was released on 1967 with total page 254 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Introduction to Total And Partial Pressure Measurements in Vacuum Systems written by National Aeronautics and Space Administration (NASA) and published by Createspace Independent Publishing Platform. This book was released on 2018-07-08 with total page 78 pages. Available in PDF, EPUB and Kindle. Book excerpt: An introduction to the fundamentals of total and partial pressure measurement in the vacuum regime (760 x 10 to the -16th power Torr) is presented. The instrument most often used in scientific fields requiring vacuum measurement are discussed with special emphasis on ionization type gauges and quadrupole mass spectrometers. Some attention is also given to potential errors in measurement as well as calibration techniques. Outlaw, R. A. and Kern, F. A. Langley Research Center...
Download or read book Introduction to Total and Partial pressure Measurements in Vacuum Systems written by R. A. Outlaw and published by . This book was released on 1989 with total page 80 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Total Pressure Measurements in Vacuum Technology written by A. Berman and published by Academic Press. This book was released on 2014-06-28 with total page 413 pages. Available in PDF, EPUB and Kindle. Book excerpt: Total Pressure Measurements in Vacuum Technology focuses on the measurement of low total pressure in hostile environments or in the presence of magnetic fields. This book emphasizes the general processes and problems involved in measurement techniques and physical principles on which vacuum gauges operate, rather than on the detailed description of the gauges. The design and techniques involved in the use of special instruments that determine “pressure or gas density, such as pressure converters or radioactive gauges, are also described. This publication is mainly intended for graduate students and research scientists who have a good general background in physics and engineering.
Download or read book Introduction to Total and Partial pressure Measurements in Vacuum Systems written by R. A. Outlaw and published by . This book was released on 1989 with total page 80 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Pressure Measurement in Vacuum Systems Second Edition written by and published by . This book was released on 1964 with total page 221 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Pressure Measurement in Vacuum Systems written by J H (John Henry) Leck and published by Hassell Street Press. This book was released on 2021-09-09 with total page 152 pages. Available in PDF, EPUB and Kindle. Book excerpt: This work has been selected by scholars as being culturally important and is part of the knowledge base of civilization as we know it. This work is in the public domain in the United States of America, and possibly other nations. Within the United States, you may freely copy and distribute this work, as no entity (individual or corporate) has a copyright on the body of the work. Scholars believe, and we concur, that this work is important enough to be preserved, reproduced, and made generally available to the public. To ensure a quality reading experience, this work has been proofread and republished using a format that seamlessly blends the original graphical elements with text in an easy-to-read typeface. We appreciate your support of the preservation process, and thank you for being an important part of keeping this knowledge alive and relevant.
Download or read book Introduction to Vacuum Technology written by David M. Hata and published by Prentice Hall. This book was released on 2008 with total page 212 pages. Available in PDF, EPUB and Kindle. Book excerpt: The approach taken in this book is to approach vacuum systems from a pressure regime viewpoint. That is, after covering some basic chemistry, the first pressure regime covered is the rough vacuum regime. Within the study of rough vacuum systems, the following topics are covered: the gas load, the pumping mechanism, pressure measurement and vacuum system construction. The discussion of rough vacuum is then followed by the study of high-vacuum systems. The same topics are revisited, but this time from a high vacuum perspective. Once both rough vacuum and high vacuum systems are covered, then the topics of leak detection and residual gas analysis are introduced. This approach lends itself to laboratory experimentation. During the review of gas laws from chemistry, there are a number of experiments and demonstrations that can be performed to reinforce basic laws and concepts. Then, during the study of rough vacuum systems, pumpdown times can be calculated and pumpdowns performed in the laboratory. Likewise, during the study of high-vacuum systems, pumpdowns as well as other lab exercises, such as outgassing and residual gas analysis, can be conducted. Coverage of vacuum systems from a pressure regime viewpoint, rather than from a topical viewpoint. Focus on the fundamental science behind vacumm system components. This book is written for users of vacuum systems, especially the technicians that are responsible for maintaining them.
Download or read book Bibliography and Index on Vacuum and Low Pressure Measurement January 1960 to December 1965 written by William George Brombacher and published by . This book was released on 1967 with total page 120 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Basic Vacuum Technology 2nd edition written by A. Chambers and published by CRC Press. This book was released on 1998-01-01 with total page 214 pages. Available in PDF, EPUB and Kindle. Book excerpt: Vacuum technology is widely used in many manufacturing and developmental processes and its applications grow in scope and sophistication. It is an inter-disciplinary subject, embracing aspects of mechanical, electrical and chemical engineering, chemistry, and materials science while having a broad foundation in physics. In spite of its technological importance, and perhaps because of its cross-disciplinary nature, substantial teaching and training is not widely available. Basic Vacuum Technology aims to give readers a firm foundation of fundamental knowledge about the subject and the ability to apply it. This book is an introductory text on how to use vacuum techniques. It provides a good grounding in the basic scientific principles and concepts that underlie the production and measurement of vacua. The authors describe how these are applied in representative low, medium, high, and ultra-high vacuum systems and explain the most important practical aspects of the operation of a large variety of pumps, components, and measuring instrumentation. The book introduces numerical methods for analysis and prediction of the behavior of vacuum systems in terms of the properties of their individual elements and enables readers to recognize and resolve problems with malfunctioning systems.
Download or read book Vacuum and Ultravacuum written by Igor Bello and published by CRC Press. This book was released on 2017-11-02 with total page 1036 pages. Available in PDF, EPUB and Kindle. Book excerpt: Vacuum technology has enormous impact on human life in many aspects and fields, such as metallurgy, material development and production, food and electronic industry, microelectronics, device fabrication, physics, materials science, space science, engineering, chemistry, technology of low temperature, pharmaceutical industry, and biology. All decorative coatings used in jewelries and various daily products—including shiny decorative papers, the surface finish of watches, and light fixtures—are made using vacuum technological processes. Vacuum analytical techniques and vacuum technologies are pillars of the technological processes, material synthesis, deposition, and material analyses—all of which are used in the development of novel materials, increasing the value of industrial products, controlling the technological processes, and ensuring the high product quality. Based on physical models and calculated examples, the book provides a deeper look inside the vacuum physics and technology.
Download or read book Foundations of Molecular Flow Networks for Vacuum System Analysis written by Nagamitsu Yoshimura and published by Academic Press. This book was released on 2019-11-13 with total page 208 pages. Available in PDF, EPUB and Kindle. Book excerpt: Foundations of Molecular-Flow Networks for Vacuum System Analysis is the only book that covers desorption, adsorption and outgassing in relation to molecular-flow networks. It will be beneficial for academics, students and industry personnel working in the field of ultra-high vacuums for designing the equipment/set-up and as a guide to understand the processes relating to vacuums. The book is fully supported with equations and case studies from industry. Vacuum technology is extensively used in large synchrotrons and other large accelerators, as well as in many other smaller industrial and scientific facilities. Hence, this book is a welcome addition to the literature. Explains how to design, model and simulate vacuum systems to obtain satisfactory pressure distributions Offers a practical description of molecular flow, providing techniques to design molecular flow networks of vacuum systems and processes Explores equivalence with electrical components to help readers with simulation using free software such as LTSPICE
Download or read book Vacuum Technology written by David J Hucknall and published by Royal Society of Chemistry. This book was released on 2019-05-16 with total page 252 pages. Available in PDF, EPUB and Kindle. Book excerpt: An accessible and applicable guide to quantitative problem solving in vacuum technology, this book is aimed at newcomers, students and the experienced practitioner. It contains essential information and worked examples for those using vacuum technology in chemical applications and who are involved in the design and operation of vacuum equipment. Using step by step solutions of example calculations and formulae, Vacuum Technology: Calculations in Chemistry sets out to encourage readers to quantify their own systems so that they can ensure efficient operation and fault finding. Whilst emphasising the use of appropriate units in calculations and using well known expressions in vacuum technology throughout, the book includes: * formulae necessary for quantitative vacuum technology * commonly required data for common gases in tabulated form * schematic diagrams of systems and layouts This book is certain to be a confidence inspiring publication for use in both research and industry.
Download or read book Handbook of Vacuum Technology written by Karl Jousten and published by John Wiley & Sons. This book was released on 2008-11-24 with total page 1050 pages. Available in PDF, EPUB and Kindle. Book excerpt: A comprehensive standard work and important resource for both students and professionals in research and industry who need detailed knowledge of the theory and applications. Many numerical examples and numerous illustrations visualize the theoretical issues, backed by many useful tables and charts, plus over 500 illustrations. The Handbook discusses the latest developments in vacuum measurement techniques and leak detection in vacuum systems, as well as the connection of vacuum systems to computerized control systems.
Download or read book Vacuum Technology and Applications written by David J. Hucknall and published by Elsevier. This book was released on 2013-10-22 with total page 328 pages. Available in PDF, EPUB and Kindle. Book excerpt: Vacuum Technology and Applications reviews the most commonly encountered methods for the production, containment, and measurement of subatmospheric pressure. This book also outlines a number of very important applications of this technology. This text is organized into eight chapters and begins with a brief survey of the fundamental principles of vacuum technology. The succeeding chapters deal with the pumps used for the production of rough-medium and high-ultra-high vacua. These chapters specifically cover their principles, performance, and applications. These topics are followed by a discussion of the devices for residual gas analysis and partial pressure measurement. Other chapters consider the aspects of leak detection using He-specific mass spectrometer and the materials, components, and fabrication of vacuum devices. The final chapters explore the application of vacuum technology in critical areas of industrial activity, such as thin-film technology, semiconductor, metallurgy, and chemical industry. This book will prove useful to practicing mechanical, chemical, and design engineers.
Download or read book NASA Reference Publication written by and published by . This book was released on 1977 with total page 800 pages. Available in PDF, EPUB and Kindle. Book excerpt:
