Catalogue


Quantitative millimetre wavelength spectrometry [electronic resource] /
John F. Alder, John G. Baker.
imprint
Cambridge, UK : Royal Society of Chemistry, c2002.
description
xiv, 122 p. : ill. ; 25 cm.
ISBN
0854045759
format(s)
Book
More Details
added author
imprint
Cambridge, UK : Royal Society of Chemistry, c2002.
isbn
0854045759
restrictions
Licensed for access by U. of T. users.
catalogue key
12600745
 
Includes bibliographical references and index.
A Look Inside
About the Author
Author Affiliation
Professor John Alder's distinguished career began at Imperial College. He moved to UMIST in 1980, where he is now Professor of Analytical Science Dr John Baker left Cambridge to become a Fulbright Scholar in the USA, and subsequently worked at Bristol University before joining the Schuster Physics Laboratory at the University of Manchester. He is currently Visiting Reader in the Department of Instrumentation and Analytical Science at UMIST
Reviews
This item was reviewed in:
SciTech Book News, June 2002
To find out how to look for other reviews, please see our guides to finding book reviews in the Sciences or Social Sciences and Humanities.
Summaries
Bowker Data Service Summary
Designed for practitioners in both industry and academia, this book demonstrates the current status and future potential of millimetre wavelength (MMW) spectrometry as a means of quantitative analysis of gaseous mixtures.
Description for Reader
This unique book demonstrates the current status, and future potential, of millimetre wavelength (MMW) spectrometry as a means of quantitative analysis of gaseous mixtures. After outlining the spectroscopic theory required, the authors then go on to discuss the components of an MMW cavity spectrometer, concentrating on compact, automatic, low-cost instruments. Other topics covered include solid state MMW sources with both cryogenically cooled and room temperature detectors. Post-detector signal processing, smoothing, filtering and spectral profile fitting are also discussed. The book concludes with a look at the future of the technique, in areas such as millimetre wave-over-fibre technology.Quantitative Millimetre Wavelength Spectrometry will be welcomed by practitioners in both industry and academia.
Unpaid Annotation
Demonstrates the current status, and future potential, of millimeter wavelength (MMW) spectrometry as a means of quantitative analysis of gaseous mixtures. After outlining the spectroscopic theory required, the authors then go on to discuss the components of an MMW cavity spectrometer, concentrating on compact, automatic, low-cost instruments.
Unpaid Annotation
This unique book demonstrates the current status, and future potential, of millimeter wavelength (MMW) spectrometry as a means of quantitative analysis of gaseous mixtures. After outlining the spectroscopic theory required, the authors go on to discuss the components of an MMW cavity spectrometer, concentrating on compact, automatic, low-cost instruments. Post-detector signal processing, smoothing, filtering, and spectral profile fitting are also discussed. The book concludes with a look at the future of the technique, in areas such as millimeter wave-over-fibre technology.
Main Description
This unique book demonstrates the current status, and future potential, of millimetre wavelength (MMW) spectrometry as a means of quantitative analysis of gaseous mixtures. After outlining the spectroscopic theory required, the authors then go on to discuss the components of an MMW cavity spectrometer, concentrating on compact, automatic, low-cost instruments. Other topics covered include solid state MMW sources with both cryogenically cooled and room temperature detectors, Post-detector signal processing, smoothing, filtering and spectral profile fitting are also discussed. The book concludes with a look at the future of the technique, in areas such as millimetre wave-over-fibre technology. Quantitative Millimetre Wavelength Spectroscopy will be welcomed by practitioners in both industry and academia.
Main Description
This unique book demonstrates the current status, and future potential, of millimetre wavelength (MMW) spectrometry as a means of quantitative analysis of gaseous mixtures. After outlining the spectroscopic theory required, the authors then go on to discuss the components of an MMW cavity spectrometer, concentrating on compact, automatic, low-cost instruments. Other topics covered include solid state MMW sources with both cryogenically cooled and room temperature detectors. Post-detector signal processing, smoothing, filtering and spectral profile fitting are also discussed. The book concludes with a look at the future of the technique, in areas such as millimetre wave-over-fibre technology. Quantitative Millimetre Wavelength Spectrometry will be welcomed by practitioners in both industry and academia.
Table of Contents
Glossary of Terms and Symbolsp. xi
Interaction of Millimetre Wavelength Electromagnetic Radiation with Gasesp. 1
Basic Spectroscopic Theoryp. 3
Effect of Spectral Line Broadening on Absorption Intensityp. 10
Doppler Broadeningp. 10
Natural Linewidth and Pressure Broadeningp. 12
Power Saturation and Broadeningp. 14
Effect of the Cavity Q on Power Broadeningp. 15
Line Intensities for Diatomic and Linear Polyatomic Moleculesp. 16
Line Intensities for Symmetric-Top and Asymmetric-Top Moleculesp. 17
Line Spectrap. 17
Band Spectrap. 18
Significance of the Peak Absorption Coefficient Functions for Quantitative Millimetre Wavelength Spectrometryp. 19
Referencesp. 20
The Components of a MMW Cavity Spectrometer for Quantitative Measurementsp. 21
Cavity Absorption Cellsp. 21
Analytical Absorption Signals in a Fabry-Perot Cavityp. 27
Coupling Radiation into and out of Absorption Cellsp. 27
The Reflection Cavityp. 29
The Transmission Cavityp. 33
A Practical Couplerp. 35
Scanning the Cavityp. 35
Referencesp. 37
Practical Spectral Sources and Detectors for Analytical Spectrometryp. 38
Negative Resistance Oscillators, Multipliers and BWOsp. 38
Gunn Devicesp. 39
Impatt Diodesp. 41
Schottky Barrier Devicesp. 43
Backward Wave Oscillators, BWOsp. 44
Marginal Oscillatorsp. 44
The Use of Isolators in MMW Circuitsp. 46
Source Frequency Controlp. 47
Synchronised YIG Oscillators as Intermediate Frequency Sourcesp. 48
Signal Modulation and Detection Processesp. 52
Detectors for Quantitative MMW Spectrometryp. 55
Bolometer Mixersp. 57
Schottky Diode Mixersp. 58
Noise and Signal Processing in MMW Spectrometersp. 60
Johnson Noisep. 60
Shot Noisep. 61
Inverse Frequency or 1/f Noisep. 61
Signal Rectification Noisep. 61
Referencesp. 63
The Quantitative Analysis of Gas Mixturesp. 65
Measuring the Spectral Line Profile and Area Using Frequency Modulationp. 65
Digital Modulation Techniquesp. 68
Computerised Enhancement of Spectral Signalsp. 70
Measurements at Pressures up to Atmosphericp. 76
Cavity Spacing Glitch Spectrometryp. 76
Referencesp. 79
Cavity Spectrometer Designs and Applicationsp. 80
Previous Commercial Microwave Spectrometersp. 80
Fabry-Perot and Waveguide Cavity Spectrometersp. 80
Double Resonance Spectrometersp. 82
Recent Developments in MMW and Higher Frequency Spectrometersp. 83
Atmospheric Pressure MMW Spectrometersp. 85
Referencesp. 87
A Practical Frequency Modulated Spectrometer and Its Application to Quantitative Analysisp. 89
To Set the Scenep. 89
Signal Sources and Operating Frequency Bandp. 90
The Sample Cell and Sample Handling Techniquesp. 91
Sample Modulation and Signal Detectionp. 100
Computer Control, Signal Detection and Amplificationp. 101
Post-Detection Signal Enhancementp. 103
Quantitative Interpretation of Datap. 104
Determination of Spectral Absorption Coefficients and Calibration Curvesp. 106
Pressure Scanningp. 110
The Practical Spectrometerp. 113
Referencesp. 113
The Future for Quantitative Millimetre Wavelength Spectrometryp. 115
Referencesp. 118
Subject Indexp. 119
Table of Contents provided by Syndetics. All Rights Reserved.

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