Author: Frederick W. Grover

Publisher: Forgotten Books

Published: 2016-10-13

Total Pages: 34

ISBN-13: 9781333936419

Excerpt from Formulae and Tables for Calculation of Inductance of Coils of Polygonal Form Such coils. Possess as small a capacity as the corresponding coils of circular turns with the added advantage Of elimination of energy losses in dielectric material, and have found an extensive use in recent years. At the Bureau Of Standards a set Of single-layer coils wound On bakelite forms Of such a Shape that' each turn has the Shape Of a 12-sided polygon has been used as standards Of inductance 111 radio measuring circuits. It is, accordingly, a matter of importance to be able to calculate accurately. The inductance 'of coils Of this type from their dimensions. Other cases frequently arise where a calculation Of the inductance is required for a coil Of polygonal shape, such as, for example, the calculation Of the leakage reactance of the coils Of certain forms of core-type transformer. The present paper has for its Object not only the derivation Of formulas for the calculation Of the inductance Of polygonal coils, but also to furnish tables for simplifying the calculations. These should prove useful for the case Of both single-layer and multi layer coils, as will be shown below. 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.