Self Study Manual On Optical Radiation Measurements Concepts

Author : Fred Edwin Nicodemus
Publisher : Forgotten Books
ISBN 13 : 9781527835870
Total Pages : 104 pages
Book Rating : 4.8/5 (358 download)

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Download or read book Self-Study Manual on Optical Radiation Measurements written by Fred Edwin Nicodemus and published by Forgotten Books. This book was released on 2017-10-27 with total page 104 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excerpt from Self-Study Manual on Optical Radiation Measurements: Part I, Concepts, Chapters 1 to 3 In recent years, the economic and social impact of radiometric measurements (including photometric measurements) has increased significantly. Such measurements are required in the manufacture of cameras, color Tv's, copying machines, and solid-state lamps Ultraviolet radiation is being used extensively for the polymerization of industrial coat ings, and regulatory agencies are concerned with its effects on the eyes and skin of workers. On the other hand, phototherapy is usually the preferred method for the treatment of jaundice in the newborn. Considerable attention is being given to the widespread utili zation of solar energy. These are just a few examples of present day applications of opti cal radiation. Most of these applications would benefit from simple measurements of one to a few per cent uncertainty and, in some cases, such accuracies are almost essential. But this is rarely possible. Measurements by different instruments or techniques commonly dis agree by iox to 502, and resolving these discrepancies is time-consuming and costly. There are two major reasons for the large discrepancies that occur. One is that opti cal radiation is one of the most difficult physical quantities to measure accurately. Radiant power varies with the radiation parameters of position, direction, wavelength, time, and polarization. The responsivity of most radiometers also varies with these same radia tion parameters and with a number of environmental and instrumental parameters, as well. Thus, the accurate measurement of optical radiation is a difficult multi - dimensional prob lem. The second reason is that, in addition to this inherent difficulty, there are few measurement experts available. Most of the people wanting to make optical radiation measurements have not been trained tofdo so. Few schools have had programs in this area and tutorial and reference material that can be used for self-study is only partially avail able, is scattered throughout the literature, and is generally inadequate. Our purpose in preparing this Self - Study Manual is to make that information readily accessible in one place and in systematic, understandable form. 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.