Electrical Measuring Instruments Commercial And Indicating Instruments

Author : George Dudley Aspinall Parr
Publisher : Forgotten Books
ISBN 13 : 9781330126615
Total Pages : 340 pages
Book Rating : 4.1/5 (266 download)

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Download or read book Electrical Engineering Measuring Instruments for Commercial and Laboratory written by George Dudley Aspinall Parr and published by Forgotten Books. This book was released on 2015-06-16 with total page 340 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excerpt from Electrical Engineering Measuring Instruments for Commercial and Laboratory While much has been written in connection with almost every section or branch of electrical engineering, including dynamos, motors, transformers, cells, and appliances of almost every description, the branch dealing with the subject of measuring instruments used in electrical engineering has received little or no attention from the literary section of the electrical community. The fact that, without these measuring instruments, the appliances just enumerated could never have been evolved, or, being evolved, could never have been successfully utilized, constitutes, therefore, a sufficient reason for bringing the present work before the public. Since the electrical engineering industry began to show signs of rapid development, numerous types and forms of measuring instruments have been devised by different inventors. Many of these are now obsolete, having given place to instruments with greater refinements and on better principles. Though several of these obsolete types are extremely interesting, and, indeed, instructive, they have not been described in the present work. If information regarding them is required, it will be found in the abridged patent specifications since about 1880. Only those instruments in actual and extensive use at the present day are here considered, and these form so large a body that it seems better not to try to deal with the historical portion of the subject I have divided the subject into chapters, each treating of different types or makes of instruments working on the same principle, and I have endeavoured to describe and illustrate each instrument as clearly and simply 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.