In-situ Atmospheric Trace Gas Monitoring by CO2 Laser Photoacoustic Spectroscopy PDF Download
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Author: Marc Moeckli
Publisher:
ISBN:
Category :
Languages : en
Pages : 138
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Book Description
Author: Marc Moeckli
Publisher:
ISBN:
Category :
Languages : en
Pages : 138
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Book Description
Author: Ana Maria Bratu
Publisher: LAP Lambert Academic Publishing
ISBN: 9783659635465
Category :
Languages : en
Pages : 84
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Book Description
CO2 Laser Photoacoustic Spectroscopy for Ultrasensitive Gas Detection is an easy-to-read guide to understanding the fundamentals of lasers, experimental method of CO2 laser spectroscopy and applications. This book provide informative data of a functional photoacoustic instrument with various applications in different disciplines. The wide scope of the chapters ranges from descriptions of the method, through the use of breath analysis in the study of physiological phenomena, to the identification of hazardous gases from surgical smoke. This book will provide a solid grounding for physicists, chemists, and engineers involved in trace gas analysis and detection.
Author: Andreas Thöny
Publisher:
ISBN:
Category :
Languages : en
Pages : 105
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Book Description
Author: Markus W. Sigrist
Publisher: John Wiley & Sons
ISBN: 9780471558750
Category : Technology & Engineering
Languages : en
Pages : 564
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Book Description
Leading experts discuss the characteristics, advantages, limitations and future aspects of modern spectroscopic techniques for environmental analysis. Demonstrates how these methods can be applied to trace gas detection and assessment. Concentrates on the latest techniques--both laser and non-laser based--which offer advantages for air pollution and gas monitoring as opposed to more conventional methods. Numerous examples of applications illustrate the potential of the techniques backed up by cutting-edge information and representative data.
Author: Peter Hess
Publisher: Springer
ISBN: 3540481818
Category : Science
Languages : en
Pages : 588
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Book Description
photoacoustic and Photothermal Phenomena contains reviews and a large numberof selected contributed papers reporting progress in the application of new photoacoustic and photo- thermal techniques in physics, chemistry, biology, medicine and materials science. Theoretical and experimental work is presented on spectroscopy, kinetics and relaxation, trace analysis, mass and heat transport, surfaces and thin films, nondestructive evaluation,ultrasonics and semiconductors.
Author: Jens Bösenberg
Publisher: Springer Science & Business Media
ISBN: 3662034050
Category : Science
Languages : en
Pages : 420
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Book Description
Jens Bosenberg Max-Planck-Institut fur Meteorologie, Bundesstr. 55, D-20146 Hamburg, Germany TESLAS, which stands for Tropospheric Environmental Studies by Laser Sounding, was formed in November 1987 as a subproject of EUROTRAC to enhance the measurement capabilities for vertical profiling of ozone in the troposphere by means of laser remote sensing. For studies of several atmospheric processes related to the formation and redistribution of photo-oxidants there was a clear need for measuring extended time series with appropriate vertical and temporal resolution. These could not be obtained by conventional in situ techniques, at least not with affordable effort, so remote sensing appeared to be the best way to obtain the required information. At the beginning of the subproject, some Differential Absorption Lidar (DIAL) systems for measuring the vertical distribution of ozone already existed, but their use was restricted to very few laboratories and very few measurement campaigns, since the instruments were highly complex, rather unreliable, and required extensive efforts for maintenance and operation by skilled scientists. In addition, the accuracy of these measurements under a variety of meteorological conditions was not really well established. The main tasks within TESLAS therefore were to develop fully the DIAL-methodology for remote sensing of tropospheric ozone, and to develop instruments which are accurate, reliable, easy to operate, and suitable for field deployment or airborne operation.
Author: Markus Nägele
Publisher:
ISBN: 9783896853738
Category :
Languages : en
Pages : 99
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Book Description
Author: Peter Hess
Publisher: Springer Science & Business Media
ISBN: 3642838510
Category : Science
Languages : en
Pages : 260
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Book Description
Gas-phase photoacoustics are treated comprehensively for the first time in this book. Review articles by leading scientists in the respective research areas introduce their fields, review present knowledge and conclude with the latest developments and future prospects. Topics covered include the theory of photoacoustics in the frequency and time domains, acoustic resonator models, a great variety of experimental setups and techniques, studies of spectrocopy and fundamental kinetic processes such as energy transfer and chemical reactions, and applications such as air and exhaust monitoring and trace gas detection in biology and agriculture. The book will interest newcomers to photoacoustics, since it gives an overview of the important directions of current research and detailed descriptions of experimental methods. It will also be a valuable source of information for those already involved in photoacoustic research due to its clear presentation of theory and experimental results. All relevant literature references in this rapidly expanding field of laser applications are included.
Author: Surya N. Thakur
Publisher: Elsevier
ISBN: 0323972012
Category : Science
Languages : en
Pages : 692
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Book Description
Photoacoustic and Photothermal Spectroscopy: Principles and Applications introduces the basic principles, instrumentation and major developments in the many applications of Photoacoustic and Photothermal Spectroscopy over the last three decades. The book explains the processes of sound generation by periodic optical excitation and ultrasonic generation by pulsed laser excitation and describes the workings of photoacoustic cells equipped with microphones and piezoelectric transducers. Photoacoustic imaging (PAI) is one of the fastest-growing imaging modalities of recent times. It combines the advantages of ultrasound and optical imaging techniques. These non-invasive and non-destructive techniques offer many benefits to users by enabling spectroscopy of opaque and inhomogeneous materials, (solid, liquid, powder, gel, gases) without any sample preparation, and more. - Written in a non-mathematical, simple-to-read manner - Presents recent developments in the field, along with the scope of future progress, including up-to-date references - Includes detailed illustrations, such as equipment layout, spectra, experimental setups, tables, photographs, and more
Author: R. Grisar
Publisher: Springer Science & Business Media
ISBN: 9400939914
Category : Science
Languages : en
Pages : 180
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Book Description
By now it has been nearly twenty years since the pioneering studies at the MIT-Lincoln Laboratories, Lexington, USA, demonstrated the unique capabilities of lead salt tunable diode lasers (TDL) for infrared absorption spectroscopy. The progress in the use of TDL instrumentation for a wide variety of scientific applications was described by a great number of papers since, however, comparatively few meetings were specifically devoted to this subject. In 1980 the conference on "High Resolution Infrared Spectroscopy Applications and Developments" at the National Bureau of Standards in Gaithersburg, USA, reviewed the state of the art of tunable diode lasers together with Fourier Transform Spectroscopy and other laser spectroscopic techniques. Three years later in 1983 the SPIE Conference in San Diego, USA, dedicated one meeting to "Tunable Diode Laser Development and Spectroscopy" Applications. It appeared appropriate after a further interval of three years to organize another meeting about this quickly advancing field. In November of 1986 an International Symposium on "Monitoring of Gaseous Pollutants by Tunable Diode Lasers" was organized by and held at the Fraunhofer-Insti tut fuer Physikalische Messtechnik in Freiburg, FRG. The main emphasis of this conference was put on the applications of TDL techniques to the solution of problems of environmental relevance : The measurement of atmospheric trace gases and the monitoring of exhaust gases from automobile and power plant stack emitters. The state of diode laser development and application of TDL instruments to scientific molecular spectroscopy were not directly subjects of the meeting.
