Zustand
guter Zustand, Gebrauchs- und Alterungsspuren: ehemaliges Bibliotheksexemplar - Deckel leicht gewölbt - Titel mit Stempeln und Notizen - Deckel innen mit angeklebtem Papierrest - Vorsatz und Schmutztitel mit weiterem Stempel - Seiten aber sauber und ordentlich - obere Ecke der Rückseite etwas gestaucht / angeknickt, Non-dispersive infra-red gas analysers are widely used in both laboratories and industrial plants. However, as far as the literature is concerned, they have tended to be somewhat the Cinderella of infra-red instruments. The increasing availability of devices such as optical interference filters, photoconductive infra-red detectors and field-effect transistors has had a profound effect upon the style of non-dispersive gas analysers now becoming commercially available. Our interest in infra-red gas analysers stems from the requirement to analyse anaesthetic gases and vapours in hospitals during surgery. This leads to the design of an analyser which is free from microphony, can be operated in an explosive atmosphere, can be powered from a low voltage supply, and has the facility for separating the read-out from the optical system. The investigation of the various alternatives available to fulfil this specification has made us many friends in the infra-red industry, and has finally led to our interest in laser sources and YlG modulators. The good wishes and advice of that pioneer in the field of infra-red gas analysis, K-F. Luft, are gratefully acknowledged. The book was written during the time when both of us were working together at the Royal College of Surgeons. It could never have been completed without a great deal of assistance from many companies in the United Kingdom, France, East and West Germany, and the United States of America. To all who have so willingly discussed the design of their instruments and calibration methods we should like to offer our grateful thanks- Our own investigations have been financed by the Royal Society of London, the Medical Research Council and the Science Research Council. Professor J- P- Payne has afforded us the laboratory facilities of the Research Department of Anaesthetics at the Royal College of Surgeons of England, and our colleagues on the staff have assisted with the experiments and provided much constructive comment. "In many branches of science, non-dispersive infra-red gas analysis is practised, and in spite of the existence of many competing measuring methods the field of its application is still widening. In the sphere of the large-scale chemical industry in Western Germany alone more than 2000 infra-red analysers are used at present to solve many analytical problems. Again and again, new, interesting and important possibilities of application are opened, e.g., in the fields of biology and medicine, the prevention of air pollution, and also in the mining industry. Although a copious literature on the methods and tools of non-dispersive infra-red analysis has been published in scientific journals in the course of the thirty years which have passed after their first technical application, no comprehensive survey in the form of a book has been devoted so far to this subject. This seems surprising, but it may be due essentially to the particular difficulties of classifying the various results and analysing them systematically in order to attain to generally valid conclusions relevant to all forms of application. It is the merit of the authors of this book that they have undertaken this laborious task so as to close a long-felt gap of information on this subject. lt is true that a reader like myself, who has been active in this field from the very beginning and, therefore, probably inclined to see many things too much from his own viewpoint, would have preferred here and there a different classification and appreciation of the subject matter- To the large number of people, however, who practise non-dispersive infra-red gas analysis, this book will certainly render valuable service if they wish to get more detailed information on principles and possibilities without being still compelled to go back to the original literature. Thus, good success and a large propagation should be wished to the book.", Leinen, ca. 18 x 25, 222 Seiten mit 147 Bildern, Schaltzeichnungen und Grafiken
