Detection of Carbon Using Microwave Excited Photoacoustic Spectroscopy PDF Download
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Author: Andrew Allen Suby
Publisher:
ISBN:
Category :
Languages : en
Pages : 122
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Book Description
Knowledge of the carbon content of fly ash is important for determining combustion efficiency in coal fired boilers. However, current methods of measuring fly ash carbon content are tedious, time consuming, and often inaccurate. The focus of this study was to evaluate the performance of a microwave excited photoacoustic device that incorporated stripline technology in its design. The basis for this design was the photoacoustic effect, which is capable of detecting very weak absorptions, making it ideal for detecting small amounts of carbon. Utilizing microwaves as an excitation source allowed measurements to be made with non-homogenous particle diameter due to the avoidance of Mie scattering. The device was able to detect carbon concentrations effectively from 1 to 43% carbon in various fly ashes.
Author: Andrew Allen Suby
Publisher:
ISBN:
Category :
Languages : en
Pages : 122
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Book Description
Knowledge of the carbon content of fly ash is important for determining combustion efficiency in coal fired boilers. However, current methods of measuring fly ash carbon content are tedious, time consuming, and often inaccurate. The focus of this study was to evaluate the performance of a microwave excited photoacoustic device that incorporated stripline technology in its design. The basis for this design was the photoacoustic effect, which is capable of detecting very weak absorptions, making it ideal for detecting small amounts of carbon. Utilizing microwaves as an excitation source allowed measurements to be made with non-homogenous particle diameter due to the avoidance of Mie scattering. The device was able to detect carbon concentrations effectively from 1 to 43% carbon in various fly ashes.
Author:
Publisher:
ISBN:
Category : Nondestructive testing
Languages : en
Pages : 1012
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Book Description
Author: Donald O. Thompson
Publisher: AIP Conference Proceedings / R
ISBN:
Category : Science
Languages : en
Pages : 1012
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Book Description
All papers were peer reviewed. These proceedings provide the latest research and development papers in Nondestructive Evaluation (NDE) and its applications to flaw detection, material properties, and structural reliability. The papers are prepared by a line-up of internationally known researchers and are reviewed by qualified scientists. Papers cover recent developments in essentially all measuring techniques (ultrasonic, electromagnetic, x-rays, thermal, acoustic emission, etc.) and their applications to flaw detection and structural reliability.
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: E. Lüscher
Publisher: Springer Science & Business Media
ISBN: 366306820X
Category : Science
Languages : en
Pages : 450
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Book Description
Author: Iowa State University
Publisher:
ISBN:
Category : Commencement ceremonies
Languages : en
Pages : 510
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Book Description
Author: D. B. Bicanic
Publisher:
ISBN:
Category :
Languages : en
Pages : 17
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Book Description
Author: Yoh-Han Pao
Publisher: Elsevier
ISBN: 0323158811
Category : Science
Languages : en
Pages : 257
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Book Description
Optoacoustic Spectroscopy and Detection discusses the fundamental principles and practice of optoacoustic spectroscopy. This book serves as a basis for evaluation of the feasibility of using such techniques in specific instances. Organized into eight chapters, this book starts with an overview of the detection and identification of gas contaminants, which is necessary to understand the physical description of the generation and measurement of the optoacoustic signal. This text then provides an understanding of the optoacoustic effect on a molecular scale and describes the energy transfer processes and estimates of the lifetimes of vibrationally excited states. Other chapters consider the options available to the researcher in the selection of optoacoustic system design. This book discusses as well the capabilities and limitations of various optoacoustic system designs. The final chapter deals with the technique used for exploring the absorption spectra of substances, including powders, gels, adsorbed films, and organic tissues. This book is a valuable resource for researchers and graduate students engaged in the study of optoacoustic spectroscopy.
Author: Kirk H. Michaelian
Publisher: John Wiley & Sons
ISBN: 3527633219
Category : Science
Languages : en
Pages : 328
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Book Description
This invaluable and up-to-date source on instruments and applications covers everything needed to employ a technique for investigating various gases and materials, including biomaterials. It includes the latest developments in light sources, signal recovery and numerical methods. There is no other single publication that reviews the entire subject of photoacoustic infrared spectroscopy in such detail. Physicists, chemists, and spectroscopists in both academic and industrial laboratories, polymer and organic chemists, analysts in industry, forensic and government laboratories, and materials scientists will find this book to be a vital resource.
Author:
Publisher:
ISBN:
Category : Power resources
Languages : en
Pages : 648
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Book Description
