ELECTRICAL ENGINEERING TESTING

Abstract

DURING the last few years the rapidly spreading use of electrical methods of dealing with engineering problems has been naturally accompanied by the publication of a great mass of isolated work on the testing of electrical materials and machinery. Successful design requires not merely a knowledge of principles, but an intimate acquaintance with the properties of materials to be used; that these may be used economically and without needlessly high “factors of safety.”And an electrical engineer is required to understand how to test for magnetic and electrical excellence the material he may have to use, as well as how to test his machinery for efficiency and staying power and his instruments for accuracy. It is probable that electrical engineering testing presents not only a possibility of, but a necessity for, greater refinement of measurement than occurs in other branches of engineering testing; the success of much of our electrical machinery and apparatus being more immediately dependent on exact design.

Electrical Engineering Testing.

By G. D. Aspinall Parr. Pp. viii + 474; 218 diagrams, 31 tables. (London: Chapman and Hall, Ltd., 1902.) Price 9s. net.