Download or read book A Determination of the International Ampere in Absolute Measure written by Edward Bennett Rosa and published by . This book was released on 1913 with total page 132 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book A Determination of the International Ampere in Absolute Measure Classic Reprint written by E. B. Rosa and published by Forgotten Books. This book was released on 2016-10-13 with total page 136 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excerpt from A Determination of the International Ampere in Absolute Measure In measurements based upon the third method the evaluation of the force or torque can be reduced to the direct comparison of two masses and the determination of the acceleration of gravity. The first can be readily done with extreme precision; the second involves many difficulties, but these are largely offset by the facts that we have every reason to believe that in any region, geologically stable, the value of the acceleration of gravity remains unaltered over long epochs and that relative values of the acceleration of gravity at any two places can be readily determined with high precision. The latter fact enables the results obtained by this method at different times and places to be rendered strictly com parable with one another; the former renders the results obtained capable of correction at any future time when the absolute value of the acceleration of gravity shall have been determined to a higher accuracy than that with which it is now known. For these reasons it appeared desirable that the work should be based on the third or gravitational method. Furthermore, it appeared on the whole desirable that the construction should be such that a force rather than a torque be measured. Accordingly a current weigher, or current balance, was constructed. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.
Download or read book A Determination of the International Ampere in Absolute Measure written by E. B. Rosa and published by . This book was released on 1912 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book A Determination of the International Ampere in Absolute Measure written by Edward Bennett Rosa and published by . This book was released on 1911 with total page 125 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book An Absolute Determination of the Ampere Classic Reprint written by Harvey L. Curtis and published by Forgotten Books. This book was released on 2018-10-02 with total page 84 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excerpt from An Absolute Determination of the Ampere A determination of the absolute value of the international ampere as maintained at the Bureau of Standards has been completed. The method was that used by Rosa, Dorsey, and Miller in 1911, and a large part of their apparatus was employed. This investigation was under taken to ascertain whether there had been an important change in the unit of current since 1911, and to determine the amount by which the present international unit of current differs from the absolute unit. The determination has been carried through with the idea of Obtain ing a reliable result at as early a date as possible. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.
Download or read book Determination Of The International Ampere In Absolute Measure written by E.B. Rosa and published by . This book was released on with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Absolute Measurements written by Andrew Gray and published by Forgotten Books. This book was released on 2017-11-04 with total page 226 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excerpt from Absolute Measurements: In Electricity and Magnetism This little book was originally intended to be mainly a reprint of some papers on the Measurement of Electric Currents and Potentials in Absolute Measure contributed to Namm during the winter of 1882-3 5 but as these were being reprinted, many. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.
Download or read book A New Method for the Absolute Measurement of Electric Quantity Classic Reprint written by Burton Mccollum and published by Forgotten Books. This book was released on 2018-02-08 with total page 32 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excerpt from A New Method for the Absolute Measurement of Electric Quantity In the absolute measurement of current two classes of methods are available which are capable of considerable accuracy, viz, electrodynamometer methods, in which the torque exerted between a fixed and a movable coil is measured and the current in the coils calculated from this measured torque and the known dimensions of the coil; and current balances, in which the force exerted between two coils carrying the current to be measured is balanced against a known weight and the current calculated from the weight and previously determined constants of the coils. By the latter form of apparatus measurements of current have been made in which a higher degree of accuracy has been attained than with the first-named type. There are, however, numerous possible sources of error in the use of the current balance, and, although most of these can be made small individually, they may on account of their number, introduce uncertainty in the result. The ordinary electrodynamometer methods as well as the current balance require in effect two separate experiments, the first for the determination of the value of the current in terms of a torque or force, and the second for the recording of this current in terms of the electro-chemical equivalent of silver or of a resistance and standard cell. This second experiment may introduce additional possibilities of error, owing to variations in the strength of the current or the voltage of the standard cell, errors in the resistances of the potentiometer circuits and thermo-electromotive forces in the galvanometer and potentiometer circuits, etc., and while these errors can be made small, still their possible presence increases the difficulties of the measurements. Although the current balance is capable of yielding a high degree of accuracy, it is not desirable to depend on the value given by a single type of apparatus, even though the experiments may be repeated with good agreement by different experimenters and with different instruments. It is highly desirable that if possible the values be checked by some other method, using a totally different type of apparatus. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.
Download or read book The Absolute Measurement of Capacity Classic Reprint written by Edward B. Rosa and published by Forgotten Books. This book was released on 2016-09-27 with total page 44 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excerpt from The Absolute Measurement of Capacity Under ordinary circumstances the capacity of the condenser is very nearly given, by the first part 'of the formula the remainder. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.
Download or read book The International Steam Engineer written by and published by . This book was released on 1915 with total page 874 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The International Operating Engineer written by and published by . This book was released on 1915 with total page 902 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Systems of Electrical Units written by Francis Briggs Silsbee and published by . This book was released on 1962 with total page 60 pages. Available in PDF, EPUB and Kindle. Book excerpt: The various systems of measurement, with their respective sets of units, used in the literature on electricity and magnetism are described in detail. Their historical development is summarized. The manner in which each is derived from either of the two alternative points of view of the experimentalist and the theoretician is compared and contrasted. The desirability of recognizing both points of view in international standardization, particularly when discussing rationalization, is pointed out. The present status of the absolute measurements on which all electrical units are based is reported, and tables are included for the conversion of equations and numerical values from one system to another.
Download or read book Classical Methods written by and published by Academic Press. This book was released on 1959-01-01 with total page 609 pages. Available in PDF, EPUB and Kindle. Book excerpt: Classical Methods
Download or read book Introduction to Instrumentation and Measurements written by Robert B. Northrop and published by CRC Press. This book was released on 2018-09-03 with total page 952 pages. Available in PDF, EPUB and Kindle. Book excerpt: Weighing in on the growth of innovative technologies, the adoption of new standards, and the lack of educational development as it relates to current and emerging applications, the third edition of Introduction to Instrumentation and Measurements uses the authors’ 40 years of teaching experience to expound on the theory, science, and art of modern instrumentation and measurements (I&M). What’s New in This Edition: This edition includes material on modern integrated circuit (IC) and photonic sensors, micro-electro-mechanical (MEM) and nano-electro-mechanical (NEM) sensors, chemical and radiation sensors, signal conditioning, noise, data interfaces, and basic digital signal processing (DSP), and upgrades every chapter with the latest advancements. It contains new material on the designs of micro-electro-mechanical (MEMS) sensors, adds two new chapters on wireless instrumentation and microsensors, and incorporates extensive biomedical examples and problems. Containing 13 chapters, this third edition: Describes sensor dynamics, signal conditioning, and data display and storage Focuses on means of conditioning the analog outputs of various sensors Considers noise and coherent interference in measurements in depth Covers the traditional topics of DC null methods of measurement and AC null measurements Examines Wheatstone and Kelvin bridges and potentiometers Explores the major AC bridges used to measure inductance, Q, capacitance, and D Presents a survey of sensor mechanisms Includes a description and analysis of sensors based on the giant magnetoresistive effect (GMR) and the anisotropic magnetoresistive (AMR) effect Provides a detailed analysis of mechanical gyroscopes, clinometers, and accelerometers Contains the classic means of measuring electrical quantities Examines digital interfaces in measurement systems Defines digital signal conditioning in instrumentation Addresses solid-state chemical microsensors and wireless instrumentation Introduces mechanical microsensors (MEMS and NEMS) Details examples of the design of measurement systems Introduction to Instrumentation and Measurements is written with practicing engineers and scientists in mind, and is intended to be used in a classroom course or as a reference. It is assumed that the reader has taken core EE curriculum courses or their equivalents.
Download or read book Bulletin of the Atomic Scientists written by and published by . This book was released on 1970-06 with total page 116 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Bulletin of the Atomic Scientists is the premier public resource on scientific and technological developments that impact global security. Founded by Manhattan Project Scientists, the Bulletin's iconic "Doomsday Clock" stimulates solutions for a safer world.
Download or read book Fundamentals and Frontiers of the Josephson Effect written by Francesco Tafuri and published by Springer Nature. This book was released on 2019-09-17 with total page 859 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides a comprehensive and up-to-date description of the Josephson effect, a topic of never-ending interest in both fundamental and applied physics. In this volume, world-renowned experts present the unique aspects of the physics of the Josephson effect, resulting from the use of new materials, of hybrid architectures and from the possibility of realizing nanoscale junctions. These new experimental capabilities lead to systems where novel coherent phenomena and transport processes emerge. All this is of great relevance and impact, especially when combined with the didactic approach of the book. The reader will benefit from a general and modern view of coherent phenomena in weakly-coupled superconductors on a macroscopic scale. Topics that have been only recently discussed in specialized papers and in short reviews are described here for the first time and organized in a general framework. An important section of the book is also devoted to applications, with focus on long-term, future applications. In addition to a significant number of illustrations, the book includes numerous tables for comparative studies on technical aspects.
Download or read book Human Dimension and Interior Space written by Julius Panero and published by Watson-Guptill. This book was released on 2014-01-21 with total page 322 pages. Available in PDF, EPUB and Kindle. Book excerpt: The study of human body measurements on a comparative basis is known as anthropometrics. Its applicability to the design process is seen in the physical fit, or interface, between the human body and the various components of interior space. Human Dimension and Interior Space is the first major anthropometrically based reference book of design standards for use by all those involved with the physical planning and detailing of interiors, including interior designers, architects, furniture designers, builders, industrial designers, and students of design. The use of anthropometric data, although no substitute for good design or sound professional judgment should be viewed as one of the many tools required in the design process. This comprehensive overview of anthropometrics consists of three parts. The first part deals with the theory and application of anthropometrics and includes a special section dealing with physically disabled and elderly people. It provides the designer with the fundamentals of anthropometrics and a basic understanding of how interior design standards are established. The second part contains easy-to-read, illustrated anthropometric tables, which provide the most current data available on human body size, organized by age and percentile groupings. Also included is data relative to the range of joint motion and body sizes of children. The third part contains hundreds of dimensioned drawings, illustrating in plan and section the proper anthropometrically based relationship between user and space. The types of spaces range from residential and commercial to recreational and institutional, and all dimensions include metric conversions. In the Epilogue, the authors challenge the interior design profession, the building industry, and the furniture manufacturer to seriously explore the problem of adjustability in design. They expose the fallacy of designing to accommodate the so-called average man, who, in fact, does not exist. Using government data, including studies prepared by Dr. Howard Stoudt, Dr. Albert Damon, and Dr. Ross McFarland, formerly of the Harvard School of Public Health, and Jean Roberts of the U.S. Public Health Service, Panero and Zelnik have devised a system of interior design reference standards, easily understood through a series of charts and situation drawings. With Human Dimension and Interior Space, these standards are now accessible to all designers of interior environments.
