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Author: Ronald J. Huppi Publisher: ISBN: Category : Languages : en Pages : 28
Book Description
The need to develop very sensitive electro-optical instrumentation for atmospheric studies and defense monitoring systems is of great importance to the understanding of our environment and to the defense of our country. The development of a very versatile, reliable, and sensitive radiometer has provided a tool for performing a variety of significant infrared measurements from ground-based and aircraft platforms in the .8 to 7 micrometers spectral region. The development techniques of the radiometer, the capabilities of the developed instrument, and some typical emission measurements are presented in the paper. The instrument design incorporates various techniques to eliminate the need for cooling of the optics and structural parts, which avoids the inconveniences and difficulties associated with the operation of cryogenically cooled instruments, without significantly sacrificing sensitivity. The radiometer may be used in a selectable spectral wavelength and bandwidth mode, a limited spectral scanning mode, or a tuneable spectral wavelength mode. The various modes of operation are accomplished through the use of interference filters whose spectral characteristics are somewhat adjustable by properly controlling or setting their angular orientation. The simplicity of operation of the instrument has provided a means of measuring atmospheric airglow emissions and aurorally enhanced emissions in the .8 to 1.75 micrometers region on a routine basis. Also, through the use of a reticle chopper and background suppression technique, the same radiometer has been adapted for measurements of low energy, spatially concentrated emissions in the .8 to 7 micrometers region.
Author: Ronald J. Huppi Publisher: ISBN: Category : Languages : en Pages : 28
Book Description
The need to develop very sensitive electro-optical instrumentation for atmospheric studies and defense monitoring systems is of great importance to the understanding of our environment and to the defense of our country. The development of a very versatile, reliable, and sensitive radiometer has provided a tool for performing a variety of significant infrared measurements from ground-based and aircraft platforms in the .8 to 7 micrometers spectral region. The development techniques of the radiometer, the capabilities of the developed instrument, and some typical emission measurements are presented in the paper. The instrument design incorporates various techniques to eliminate the need for cooling of the optics and structural parts, which avoids the inconveniences and difficulties associated with the operation of cryogenically cooled instruments, without significantly sacrificing sensitivity. The radiometer may be used in a selectable spectral wavelength and bandwidth mode, a limited spectral scanning mode, or a tuneable spectral wavelength mode. The various modes of operation are accomplished through the use of interference filters whose spectral characteristics are somewhat adjustable by properly controlling or setting their angular orientation. The simplicity of operation of the instrument has provided a means of measuring atmospheric airglow emissions and aurorally enhanced emissions in the .8 to 1.75 micrometers region on a routine basis. Also, through the use of a reticle chopper and background suppression technique, the same radiometer has been adapted for measurements of low energy, spatially concentrated emissions in the .8 to 7 micrometers region.
Author: William L. Wolfe Publisher: SPIE Press ISBN: 9780819427588 Category : Science Languages : en Pages : 204
Book Description
Radiometry is an essential part of the optical design of virtually every optical instrument, and key to many applications. It is also used to measure the radiation of various objects. This tutorial examines both the techniques of calculating radiative transfer and the measurement of fluxes and radiometric properties of various sorts.
Author: Doran J. Baker Publisher: ISBN: Category : Infrared spectra Languages : en Pages : 86
Book Description
This contract between the Air Force Geophysics Laboratory and Utah State University provided for the investigation into the nature of the disturbed and undisturbed atmosphere with particular emphasis placed upon the spectral, spatial, and temporal behavior of atmospheric emission and the controlling stimuli that initiate such emission. A major thrust was concentrated on the development of new instrumentation and measuring techniques and their use in the measurement program, particularly in atmospheric disturbances. (Author).
Author: Publisher: Academic Press ISBN: 0080920624 Category : Science Languages : en Pages : 368
Book Description
This book describes the theory of radiation thermometry, both at a primary level and for a variety of applications, such as in the materials processing industries and remote sensing. This book is written for those who will apply radiation thermometry in industrial practice; use radiation thermometers for scientific research; the radiation thermometry specialist in a national measurement institute; developers of radiation thermometers who are working to innovate products for instrument manufacturers, and developers of non-contact thermometry methods to address challenging thermometry problems. The authors of each chapter were chosen from a group of international scientists who are experts in the field and specialists on the subject matter covered in the chapter. A large number of references are included at the end of each chapter as a resource for those seeking a deeper or more detailed understanding. This book is more than a practice guide, readers will gain in-depth knowledge in: (1) the proper selection of the type of thermometer; (2) the best practice in using the radiation thermometers; (3) awareness of the error sources and subsequent appropriate procedure to reduce the overall uncertainty; and (4) understanding of the calibration chain and its current limitations. Covers all fundamental aspects of the radiometric measurements Discusses practical applications with details on the instrumentation, calibration, and error sources Authors are from leading national labs working in R&D of temperature measurements
Author: James M. Palmer Publisher: SPIE-International Society for Optical Engineering ISBN: 9780819472458 Category : Optical detectors Languages : en Pages : 0
Book Description
The material from this book was derived from a popular first-year graduate class taught by James M. Palmer for over twenty years at the University of Arizona College of Optical Sciences. This text covers topics in radiation propagation, radiometric sources, optical materials, detectors of optical radiation, radiometric measurements, and calibration. Radiometry forms the practical basis of many current applications in aerospace engineering, infrared systems engineering, remote sensing systems, displays, visible and ultraviolet sensors, infrared detectors of optical radiation, and many other areas. While several texts individually cover topics in specific areas, this text brings the underlying principles together in a manner suitable for both classroom teaching and a reference volume that the practicing engineer can use.The level of discussion of the material is suitable for a class taught to advanced undergraduate students or graduate students. Although this book is not a theoretical treatment, the mathematics required to understand all equations include differential and integral calculus.This text should be foremost in the toolkit of the practicing engineer or scientist working on radiometric problems in areas of optical engineering, electro-optical engineering, systems engineering, imagery analysis, and many others, allowing the technical professional to successfully apply radiometric principles in his or her work.
Author: Ronald J. Huppi
Author: Ronald J. Huppi
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Author: William L. Wolfe
Author: Doran J. Baker
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Author: Technology Reports Centre (Great Britain)
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Author: James M. Palmer
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