Download or read book Magnetic Testing Classic Reprint written by U. S. National Bureau of Standards and published by Forgotten Books. This book was released on 2018-09-26 with total page 504 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excerpt from Magnetic Testing Permeability and hysteresis tests are made by the ballistic method on magnetic materials in the form of round or rectangular bars and sheets. For these tests two specimens of each sample, at least 25 cm, and preferably 35 cm in length, should be furnished. The permissible cross section is determined by the dimensions of the holes of the coils and yokes used. The apparatus on hand at present will receive round rods of the following diameters. 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 MAGNETIC TESTING OF STRAIGHT RODS IN INTENSE FIELDS CLASSIC REPRINT written by WALTER LYNN. CHENEY and published by . This book was released on 2022 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Standards for Testing Magnetic Permeameters Classic Reprint written by Raymond L. Sanford and published by Forgotten Books. This book was released on 2017-10-28 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excerpt from Standards for Testing Magnetic Permeameters In View of the present importance of magnetic testing, and'the desirability of establishing the accuracy of various magnetic per meameters nowin use, an investigation has been carried out on magnetic standards. It is not always possible to estimate the accuracy of a given magnetic testing method from purely theoretical considerations. The testing of magnetic permeameters is greatly facilitated, therefore, by the use of carefully chosen specimens calibrated by a standard testing method. Such specimens may properly be considered as mag netic standards. In the course of the investigation the princip al points considered were the choice of the standard testing method and the requirements which test specimens must fulfill in order to serve satisfactorily as magnetic standards. The Burrows compensated double - yolk permeameter, which has long been accepted as standard in the United States, fulfills the necessary requirements that its constants can be determined from its own dimensions and its accuracy can be estimated without reference to any other test method. N one of the other methods considered appear to have any advantage over the Burrows permeameter and consequently it was adopted for the calibration of our standards. 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 Testing of Magnetic Compasses Classic Reprint written by R. L. Sanford and published by Forgotten Books. This book was released on 2016-10-13 with total page 22 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excerpt from Testing of Magnetic Compasses The work of the Bureau of Standards on magnetic compasses was undertaken in response to requests for information and cooperation from the War Department and the U. S. Shipping Board. It consisted of studies of the behavior Of various types of compasses, the construction of special apparatus for testing purposes, and special investigations. The information thus obtained was utilized in the preparation of specifications for various types of compasses and also in the preparation of specifications for testing. 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 On the Best Method of Demagnetizing Iron in Magnetic Testing Classic Reprint written by Charles W. Burrows and published by Forgotten Books. This book was released on 2017-10-17 with total page 76 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excerpt from On the Best Method of Demagnetizing Iron in Magnetic Testing All of the above conclusions have been carefully examined during the present investigation and have been verified except in certain cases, particularly that on the efficiency of demagnetization by alter nating current, which will be discussed latter. While these general conclusions do not cover exactly the same ground as the present work yet, with an exception or two, there are no inconsistencies between the earlier work and my own. 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 Testing of Electro Magnetic Machinery and Other Apparatus Vol 2 Classic Reprint written by Bernard Victor Swenson and published by Forgotten Books. This book was released on 2017-09-16 with total page 370 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excerpt from Testing of Electro-Magnetic Machinery and Other Apparatus, Vol. 2 Some criticism has been made that the employment of the para graph Data tends to coddle the student. The experience of the authors is that engineering students are men, well beyond the coddling age in matters of this kind, and that the saving in time and unnecessary repetition of experiments which this paragraph effects is fully justified. 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 Errors in Magnetic Testing with Ring Specimens Classic Reprint written by Morton G. Lloyd and published by Forgotten Books. This book was released on 2017-10-27 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excerpt from Errors in Magnetic Testing With Ring Specimens In determining the hysteresis of a ring specimen, two methods are available. The one is to determine corresponding values of H0 and Bo, plat a curve between them, and measure the area of this curve. This method involves the same errors as the determination of permeability. The other method is to measure the electrical energy supplied to the ring and at the same time Bo. Alternating currents are usually used for this purpose, and this requires the determination of the form factor of the induced electromotive force in order to know the maximum value attained by Bo.6 Secondly, eddy currents are induced in the specimen, but if not large can be approximately determined and separated by measurements at two frequencies. Moreover, on account of the nonuniform distribution of the flux in the section of the ring, the power expended is not the same as it would be if the distribution were uniform. This is owing to the fact that the energy per cycle is not proportional to the flux density B, but to some power of it, approximately 32 for eddy cur rents and bl6 for hysteresis. Here, again, the average value of B) is not the same as the 1.6th power of the average B. 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 Electric and Magnetic Measurements and Measuring Instruments Classic Reprint written by Frank W. Roller and published by Forgotten Books. This book was released on 2017-12-15 with total page 408 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excerpt from Electric and Magnetic Measurements and Measuring Instruments The following volume has been written for the use of those who have to do with electrical and magnetic measurements in one form or another, and as these must be made in practically all branches of the profession, from the simple testing out of lines and resistances to the most elaborate determination of designs, it is hoped that its Sphere of usefulness will be quite large. The subjects have, throughout, been approached with a View toward their use by users, not manufacturers, of measuring apparatus, that is to say the book is in no sense intended as a treatise on the design and construction of instruments, the circle interested being decidedly limited. Descriptions are, however, given of apparatus as well as of methods of test, because knowl edge of the manner in which a principle is utilized in concrete instruments often suggests, to one having a determination to make but is at the same time without the particular form of appliance ordinarily employed for that purpose, means of adap ing thereto some other device which is at hand. Further, in illustrating examples of instruments for different kinds of work, there has been in mind the idea that these will enable engineers to decide, with the aid of their general engineering knowledge, which are the best suited to their particular requirements. 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 Fees for Electric Magnetic and Photometric Testing Classic Reprint written by United States Bureau Of Standards and published by Forgotten Books. This book was released on 2019-01-19 with total page 34 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excerpt from Fees for Electric, Magnetic, and Photometric Testing Measurements of power' in watts are of course also in terms of resistance standards and standard cells. Alternating current, voltage, and power are measured by instruments calibrated by direct-current instruments, and hence are in terms of the same standards. Alternating - current instruments are used in turn to calibrate the standards used in radio measurements. T here are no international standards in magnetism, ail measure ments being in terms of electric current and electromotive force. 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 MAGNETIC BALANCE FOR THE INSPECTION OF AUSTENITIC STEEL CLASSIC REPRINT written by RAYMOND L. SANFORD and published by . This book was released on 2022 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Edinburgh New Philosophical Journal 1833 Classic Reprint written by and published by Forgotten Books. This book was released on 1834 with total page 428 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excerpt from Edinburgh New Philosophical Journal, 1833 I. On the Physical Structure of the Site of Rome, and the adjoining Country. Communicated by the Author, II. Observations on the Deviation of the Compass; with Examples of its fatal influence in some melancholy and dreadful shipwrecks. By the Rev. William scoresby, F. R. S. &c. Communicated by the Author. 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 Correlation of the Magnetic and Mechanical Properties of Steel Classic Reprint written by Charles W. Burrows and published by Forgotten Books. This book was released on 2017-12-25 with total page 44 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excerpt from Correlation of the Magnetic and Mechanical Properties of Steel A second important phase 'of this subject is the variation in magnetic behavior as the test piece is subjected to the influence of stress. The correlation here is so close that the strains set up in a stressed bar are accompanied by simultaneous variations in the magnetic behavior which change in character as the magnitude of the strain with respect to the elastic limit changes. Finally, mechanical inhomogeneities of whatever origin are mirrored by corresponding magnetic inhomogeneities. A mag netic test may therefore be of assistance in detecting flaws in material where the vital characteristic is reliability. 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 Sensitivity and Magnetic Shielding Tests of a Thomson Galvanometer for Use in Radiometry Classic Reprint written by W. W. Coblentz and published by Forgotten Books. This book was released on 2018-02-08 with total page 30 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excerpt from Sensitivity and Magnetic Shielding Tests of a Thomson Galvanometer for Use in Radiometry It has been shown 4 that if the space in which the needle hangs is not made cylindrical, the shape of it is of some importance, as it is possible to place spires in positions in which they produce a magnetic effect which is opposed to that of the complete coil. 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 Magnetic Testing Theory and Nomenclature written by American Society for Testing and Materials. Committee A-6 on Magnetic Testing and published by . This book was released on 1966 with total page 42 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Magnetic and Other Properties of Iron Silicon Alloys Melted in Vacuo Classic Reprint written by Trygve Dewey Yensen and published by Forgotten Books. This book was released on 2018-02-28 with total page 80 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excerpt from Magnetic and Other Properties of Iron-Silicon Alloys, Melted in Vacuo Results Results of Mechanical Results of Magnetic and Electrical Tests Results of Magnetic and Electrical Tests Progress made in Recent Years. 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 Bureau of Standards Journal of Research Vol 6 March 1931 Classic Reprint written by United States Department Of Commerce and published by Forgotten Books. This book was released on 2018-03-28 with total page 22 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excerpt from Bureau of Standards Journal of Research, Vol. 6: March, 1931 The advent and increasing use of cobalt magnet steels requiring the application of relatively intense fields for magnetization has led to the development of a number of commercial permeameters for mag netic testing with high magnetizing forces. For the standardization of these instruments a method is required whose accuracy can be determined without reference to tests by any other method. An adaptation of the well-known isthmus method is described, which, under proper conditions, gives an accuracy well within the allowable experimental error and which can be made to accommodate specimens of various shapes and Sizes. A criterion by which to determine whether or not the proper conditions for accuracy are obtained is given. Attention is called to the importance of magnetic uniformity in bars to be used as magnetic standards, which must be taken into account in measurements with high magnetizing forces no less than in measurements in the lower ranges. 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 Electric and Magnetic Measurements Classic Reprint written by Charles Marquis Smith and published by Forgotten Books. This book was released on 2017-12-05 with total page 398 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excerpt from Electric and Magnetic Measurements Errors of various kinds arise in making measurements, the most important of which are the following: Errors of observation, due to lack of ability on the part of the observer to make accurate readings. Simple mistakes, which grow less troublesome as the observer gains in training and experience. Instrumental errors, due to incorrect calibration of scales or to faulty adjustment of comparison standards. 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.