A Pyroelectric Power Meter for the Measurement of Low Level Laser Radiation, Vol. 6 (Classic Reprint) PDF Download
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Author: C. A. Hamilton Publisher: Forgotten Books ISBN: 9780260877529 Category : Technology & Engineering Languages : en Pages : 48
Book Description
Excerpt from A Pyroelectric Power Meter for the Measurement of Low Level Laser Radiation, Vol. 6 The decision to develop the laser power meter described here resulted from need with the laser industry for a rapid, convenient means of low level measuring laser power. It was originally encouraged by T. W. Russell who was responsible for the Laser Measurement Assurance Program. The work was performed under the supervision of R. J. Phelan, Jr., Optical Electronics Program Leader. Others who gave substantial assistance to the project were L. O. Mullen, K. W. Pyatt, G. P. Klein, Y. Beers, and Debra Deichman. 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.
Author: C. A. Hamilton Publisher: Forgotten Books ISBN: 9780260877529 Category : Technology & Engineering Languages : en Pages : 48
Book Description
Excerpt from A Pyroelectric Power Meter for the Measurement of Low Level Laser Radiation, Vol. 6 The decision to develop the laser power meter described here resulted from need with the laser industry for a rapid, convenient means of low level measuring laser power. It was originally encouraged by T. W. Russell who was responsible for the Laser Measurement Assurance Program. The work was performed under the supervision of R. J. Phelan, Jr., Optical Electronics Program Leader. Others who gave substantial assistance to the project were L. O. Mullen, K. W. Pyatt, G. P. Klein, Y. Beers, and Debra Deichman. 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.
Author: A. A. Sanders Publisher: Forgotten Books ISBN: 9780365584001 Category : Technology & Engineering Languages : en Pages : 54
Book Description
Excerpt from A System for Measuring Energy and Peak Power of Low-Level 1. 064 Μm Laser Pulses Referring to eq (1) and assuming linearity and time invariance, one can rewrite the convolution theorem in terms of the Fourier transform, Isome devices, e.g., some electrically calibrated pyroelectric detectors are non-linear in the) mechanism for achieving their final reading but linear in terms of the final results. The caution does not apply in this case provided one uses only the final results. 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.
Author: M. Young Publisher: Forgotten Books ISBN: 9780428598433 Category : Languages : en Pages : 44
Book Description
Excerpt from Measurement of Pulsed-Laser Power We describe calibrating several Optical-pulse power meters to an accuracy of about 82 or better. The meters are designed for Q-switched neodymium lasers with peak powers in excess of a few megawatts and pulses longer than five or ten nanoseconds. Combined with a fast oscilloscope or a transient digitizer, the meters display the time-domain waveform of the laser emission and thereby allow determination of Parameters such as transition duration (risetime, falltime), duration and peak power. We discuss calibrating the meters by both pulsed and cw methods, and show why each method is useful as a check on the other. We treat in some detail the effect of speckle on the use of diffusers as attenuators in power-meters such as ours. 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.
Author: E. D. West Publisher: Forgotten Books ISBN: 9781396015458 Category : Technology & Engineering Languages : en Pages : 34
Book Description
Excerpt from A System for Calibrating Laser Power Meters for the Range 5-1000 W Tive absorptance. The solid line represents an electrical input. The dotted line represents a possible laser. 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.
Author: C.A. Hamilton Publisher: Forgotten Books ISBN: 9781528229715 Category : Languages : en Pages : 58
Book Description
Excerpt from An Electrically Calibrated Pyroelectric Radiometer System The power calculation circuitry uses high accuracy amplifiers and an analog multiplier to measure the power dissipated in the detector heater (rd) 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.
Author: David A. Marquis Publisher: Forgotten Books ISBN: 9780428788223 Category : Technology & Engineering Languages : en Pages : 32
Book Description
Excerpt from A Chemical Light Meter for Forest Research Exposure meters or illumination meters, which measure light intensity at a given moment, yield data of very limited utility um less a large number of readings, taken over a period of time, are averaged. For some purposes such a-procedure is suitable; but more often it is time-consuming, inaccurate, and even impossible when more than a few locations are to be sampled. Integrating type light meters, which measure and integrate light for a full daylight period, are excellent instruments; but for most uses their cost is prohibitive. In 1958, W. G. Dore briefly described a chemical light meter1 that in several respects seemed superior to other light-measuring devices for use in silvical or ecological studies. It offers these advantages. 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.
Author: Chas R. Darling Publisher: Forgotten Books ISBN: 9780666744340 Category : Technology & Engineering Languages : en Pages : 272
Book Description
Excerpt from Pyrometry: A Practical Treatise on the Measurement of High Temperatures The next step in advance was the introduction of the expansion pyrometer by John Daniel] in 1822. The elongation Of a platinum rod, encased in plum bago, was made to operate a magnifying device, which moved a pointer over a scale divided so as to read temperatures directly. Although inaccurate as com pared with modern instruments; this pyrometer was the first to give a continuous reading, and required no personal attention. The expansion pyrometer - with different expanding substances - is still used to. A limited extent. The year 1822 was also marked by Seebeck's discovery of thermo-electricity. The generation Of a current of electricity by a heated junction Of two metals, increasing with the temperature, appeared to afford a simple and satisfactory basis for a pyrometer, and Becquerel constructed an instrument on these lines in 1826. Pouillet and others also endeavoured to measure temperatures by the thermo-electric method, but partly owing to the use of unsuitable junctions, and partly to the lack of reliable galvanometers, these workers failed to Obtain concordant results. The method was for all practical purposes abandoned until 1886, when its revival in reliable form led to the enormous extension Of the use of pyrometers witnessed during 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.
Author: C. A. Hamilton
Author: C. A. Hamilton
Author: A. C. Hamilton
Author: 
Author: C. A.. Hamilton
Author: A. A. Sanders
Author: M. Young
Author: E. D. West
Author: C.A. Hamilton
Author: David A. Marquis
Author: Chas R. Darling