Modulated Infrared Source
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Modulated Infrared Source
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Author : Peter Yung-Sen Chen
language : en
Publisher:
Release Date : 1993
Modulated Infrared Source written by Peter Yung-Sen Chen and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1993 with categories.
Modulated Infrared Radiant Source
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Author :
language : en
Publisher:
Release Date : 1981
Modulated Infrared Radiant Source written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1981 with Infrared sources categories.
Portable Infrared Pulse Modulation Communication System
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Author : Genard T. Catalano
language : en
Publisher:
Release Date : 1966
Portable Infrared Pulse Modulation Communication System written by Genard T. Catalano and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1966 with categories.
An experimental model of a portable infrared communication set has been designed and tested with a GaAs diode as the infrared source. The type of modulation used is Pulse Frequency Modulation (PFM), commonly referred to as Pulse Position Modulation (PPM). Pulse Modulation in portable infrared equipment is attempted in order to eliminate the bias requirements needed for the infrared diode in CW Modulation. This report analyzes and describes some of the basic theory and practice of a Pulse Modulation scheme applied to an infrared communication link. (Author).
Wireless Infrared Communications
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Author : John R. Barry
language : en
Publisher: Springer Science & Business Media
Release Date : 2012-12-06
Wireless Infrared Communications written by John R. Barry and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012-12-06 with Technology & Engineering categories.
The demand for wireless access to network services is growing in virtually all communications and computing applications. Once accustomed to unteathered opera tion, users resent being tied to a desk or a fixed location, but will endure it when there is some substantial benefit, such as higher resolution or bandwidth. Recent technolog ical advances, however, such as the scaling of VLSI, the development of low-power circuit design techniques and architectures, increasing battery energy capacity, and advanced displays, are rapidly improving the capabilities of wireless devices. Many of the technological advances contributing to this revolution pertain to the wireless medium itself. There are two viable media: radio and optical. In radio, spread-spectrum techniques allow different users and services to coexist in the same bandwidth, and new microwave frequencies with plentiful bandwidth become viable as the speed of the supporting low-cost electronics increases. Radio has the advantage of being available ubiquitously indoors and outdoors, with the possibility of a seam less system infrastructure that allows users to move between the two. There are unan swered (but likely to be benign) biological effects of microwave radiation at higher power densities. Optical communications is enhanced by advances in photonic devices, such as semiconductor lasers and detectors. Optical is primarily an indoor technology - where it need not compete with sunlight - and offers advantages such as the immediate availability of a broad bandwidth without the need for regulatory approval.
A Smart Material For Infrared Modulation Applied To Ir Sensor
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Author : Suzanne Paradis
language : en
Publisher:
Release Date : 2008
A Smart Material For Infrared Modulation Applied To Ir Sensor written by Suzanne Paradis and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2008 with categories.
Optically Induced Free Carrier Light Modulator
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Author : C. Gruber
language : en
Publisher:
Release Date : 1968
Optically Induced Free Carrier Light Modulator written by C. Gruber and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1968 with Electrooptics categories.
Photon Induced Free Carrier Modulation Of Infrared Light In Germanium
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Author : Ralph M. Grant
language : en
Publisher:
Release Date : 1964
Photon Induced Free Carrier Modulation Of Infrared Light In Germanium written by Ralph M. Grant and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1964 with categories.
The theoretical framework necessary to explain the modulation of an infrared beam by photoninduced free-charge carriers is briefly reviewed. An experiment is described which demonstrates that variations in the density of free-charge carriers in germanium can modulate the intensity of an infrared beam transmitted by the germanium. (Author).
Study Of High Frequency Modulation Of Gaas Algaas Near Infrared Light Emitting Diodes
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Author : 陳尚甫
language : en
Publisher:
Release Date : 2013
Study Of High Frequency Modulation Of Gaas Algaas Near Infrared Light Emitting Diodes written by 陳尚甫 and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2013 with categories.
Introduction To Experimental Infrared Spectroscopy
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Author : Mitsuo Tasumi
language : en
Publisher: John Wiley & Sons
Release Date : 2014-11-17
Introduction To Experimental Infrared Spectroscopy written by Mitsuo Tasumi and has been published by John Wiley & Sons this book supported file pdf, txt, epub, kindle and other format this book has been release on 2014-11-17 with Science categories.
Infrared spectroscopy is generally understood to mean the science of spectra relating to infrared radiation, namely electromagnetic waves, in the wavelength region occurring intermediately between visible light and microwaves. Measurements of infrared spectra have been providing useful information, for a variety of scientific research and industrial studies, for over half a century; this is set to continue in the foreseeable future. Introduction to Experimental Infrared Spectroscopy is intended to be a handy guide for those who have no, or limited, experience in infrared spectroscopic measurements but are utilising infrared-related methods for their research or in practical applications. Written by leading researchers and experienced practitioners, this work consists of 22 chapters and presents the basic theory, methodology and practical measurement methods, including ATR, photoacoustic, IR imaging, NIR, 2D-COS, and VCD. The six Appendices will aid readers in understanding the concepts presented in the main text. Written in an easy-to-understand way this book is suitable for students, researchers and technicians working with infrared spectroscopy and related methods.
Modulation Of Light At Audio Frequencies By Mechanical Optical Systems
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Author : Alfred Worcester Einarsson
language : en
Publisher:
Release Date : 1946
Modulation Of Light At Audio Frequencies By Mechanical Optical Systems written by Alfred Worcester Einarsson and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1946 with Military telephone categories.