Interest in the applications of ultrawideband (UWB) radar systems is increasing rapidly all over the world. This is evident from the number of monographs recently published on the subject and from the many papers presented at international conferences on the general problems involved in UWB radar and on its promising new applications. Conventional (classical) methods seem to have exhausted their potential and studies in the field are undergoing a profound change. This book presents some of the novel approaches to radar system analysis now being investigated. A good source of information on UWB signals is their structural analysis in the time domain. This allows a greater understanding of the specific features of UWB radar systems, such as the properties of receiving and transmitting antennas, and various characteristics of near- and far-range target scattering fields. It is shown how the systematic application of numerical procedures can provide new results in the evaluation of UWB radar target responses. The authors do not try to cover all of the possible solutions to the problem of multidimensional representation of target responses; rather they aim to give a general understanding of the techniques of confluent analysis, computer holography and adaptive synthesis of antenna apertures. These methods have great potential for solving conventional radar problems in target detection and recognition, and they are sure to stimulate the use of UWB signals in many fields such as subsurface probing and ecological monitoring.

RECENT CASTASTROPHIC STRUCTURAL FAILURES, OCCURING ACROSS MANY INDUSTRIES, HIGHLIGHT THE NEED FOR SOCIETY TO RELATE RISK MORE EXPLICITLY WITH INSPECTION PROGRAMS. THIS VOLUME DESCRIBES AND RECOMMENDS APPROPRIATE PROCESSES AND METHODS USING RISK-BASED INFORMATION TO ESTABLISH INSPECTION GUIDELINES FOR FACILITIES OR STRUCTURAL SYSTEMS.

Accuracy and consistency are essential to success in manufacturing, and the technology of precision measurement is fully explained and illustrated in this important book. Throughout, the author accompanies illustrations of the devices with descriptions of how they are used in industry. Both apprentice and practicing engineers will discover a vast amount of new material that can be applied to virtually any imaginable measurement or calibration task.

During the 1980s, the worldwide interest in electromagnetic compatibility (EMC) grew rapidly with the introduction of legislation to control the growing interference problems generated by the increased use of electronic equipment in industry and in the home. The European directive harmonizing EMC measurements gave particular impetus to manufacturers and importers of electrical and electronic equipment in Europe to understand EMC design techniques and verification procedures. This book explains how equipment can be verified by testing. It discusses the nature of EMC standards world wide and describes in detail testing methods and their conduct and accuracy. In addition to standard EMC testing, topics including electrostatic discharge, nuclear electromagnetic pulse and lightning are also discussed. In the broad span of its subject matter, the interests of equipment manufacturers, EMC test engineers, project managers and company administrators are addressed. The testing of both military and commercial electronic equipment is covered. Particular emphasis is placed on the nature of EMC test equipment and how to use it to make reliable measurements.

The need to measure electrical power is common to many branches of science and engineering. This book presents a wide-ranging survey of the many types of radio-frequency and microwave power meter and the techniques which are used for calibrating and intercomparing them. The frequency range is 1 MHz to 200 GHz. The first of the sixteen chapters considers the fundamentals. Four chapters are then devoted to the subject of calorimetry, which forms the basis of the majority of primary standards for power measurement. A further five chapters describe the various types of non-calorimetric power meter, which include not only the commonly used thermistor, thermoelectric and diode types, but also force-operated instruments and a considerable number of miscellaneous devices. Calibration and intercomparison methods are covered in three closely linked chapters which treat respectively the basic techniques, the use of reflectometers for power meter calibration, and the problems associated with connectors and adapters. In the last three chapters a mixture of topics is covered. First a concise survey of pulsed power measurements is presented. Attention is then given to the topics of voltage and current measurement, which are closely related to power measurement. Finally, the subject of the international intercomparison of standards is discussed and the results of some of the more important intercomparison exercises are summarised.

This complete, well-integrated text offers students without extensive background in the field a solid understanding of the principles and applications of analog and digital instrumentation. Examines such topics as basic analog and digital electronic components, systems theory, and the design of analog signal conditioning circuitry for amplification, filtering, and level shifting of signals originating from a variety of transducers. Includes a detailed description of how to interface analog-to-digital converters to a personal computer, in order to digitize and display these signals, store them on magnetic media, and perform elementary digital filter operations. Also provides a review of operational amplifiers, instrumentation amplifiers, and systems theory. Numerous examples and problems are presented throughout the text, and laboratory experiments concluding each chapter provide ``hands on'' experience in all areas covered.

Starting with the useful concept of an elementary integral defined (axiomatically) on a family of elementary functions, this treatment examines the general theory of the integral, Lebesque integral in n space, the Riemann-Stieltjes integral, and more. "The exposition is fresh and sophisticated, and will engage the interest of accomplished mathematicians." - Sci-Tech Book News. 1966 edition.

CONTENTS - FOREWORD - 1. ANGULAR MEASURE - 2. AREA - 3. ATOMIC ENERGY UNITS - 4. DENSITY AND CONCENTRATION - 5. ELECTRICAL UNITS - 6. ENERGY - 7. FLOW - 8. FORCE - 9. LENGTH - 10. MAGNETIC UNITS - 11. MASS - 12. POWER - 13. PRESSURE - 14. TIME - 15. VELOCITY - 16. VOLUME - 17. REFERENCES - 18. APPENDIX A. - SYSTEMS OF UNITS - 19. APPENDIX B. - COMPARISON OF INTERNATIONAL AND U.S. - CUSTOMARY UNITS -

In diesem Buch wird die Auswertung von Messdaten mit ihren Unsicherheiten fur die Anwendung im Physikalischen Praktikum dargestellt. Fur die wesentlichen Typen von Messaufgaben findet der Leser eine Zusammenstellung aller noetigen Formeln zur Bestimmung des Bestwertes und der kombinierten und erweiterten Messunsicherheit sowie praktische Hinweise fur die Ermittlung von Unsicherheiten nach Typ B (nichtstatistische Methode). Zahlreiche durchgerechnete Beispiele geben konkrete Anleitungen und demonstrieren, wie die Ergebnisse ins Praktikumsprotokoll eingehen und wie sie diskutiert werden. Das vorliegende Kompendium ist sowohl fur Studierende in einem Bachelor- oder Lehramtsstudiengang Physik als auch fur Studierende in natur- und ingenieurwissenschaftlichen Studiengangen mit Nebenfach Physik geeignet.

Das vorliegende Lehrbuch bietet Studierenden der Natur- und Ingenieurswissenschaften einen ubersichtlichen und anschaulichen Einstieg in den Umgang mit Messdaten und deren Interpretation unter Verwendung der Messunsicherheit - fruher oft Fehlerrechnung genannt. Dabei stehen das Verstandnis und die Vermittlung von direkt anwendbarem Wissen im Vordergrund. Auf lange mathematische Herleitungen wird weitgehend verzichtet. Auf Basis einiger einfacher Grundprinzipien wie der Verteilung der Messwerte oder dem mathematischen Modell einer Messung fuhrt dieses Buch in zentrale Themen ein: - das Messen an sich, - die Angabe von Messergebnissen, - das Konzept der Unsicherheit, - die Auswertung von Messdaten mittels verschiedener Methoden, - sowie die Bewertung der erhaltenen Ergebnisse. Alle diese Themen werden anhand vielfaltiger Beispiele ausfuhrlich dargestellt und die Anwendung der abstrakten Konzepte anhand konkreter Zahlenbeispiele veranschaulicht. Fragen zur Selbstkontrolle sowie zur Vertiefung der Inhalte runden jedes Kapitel ab.

Das Buch beinhaltet die Ergebnisse des dreijahrigen Verbundprojekts Separator i4.0 des BMBF-Spitzenclusters it's OWL. Gegenstand des Projekts war die nachhaltige Einbindung von Expertenwissen in die zukunftsweisende Weiterentwicklung und Optimierung von Separationsprozessen. Durch die Entwicklung neuartiger intelligenter Komponenten aus dem Bereich der Sensorik wird es zukunftig moeglich sein, Separatoren und die zugehoerigen Prozesszusammenhange zu verstehen und diese oekologisch/oekonomisch optimal auszulegen und zu betreiben. Hierzu wurde ein Instrumentarium bestehend aus Methoden und Loesungen erarbeitet, das daruber hinaus auf analoge Problemstellungen komplexer maschinenbaulicher Anlagen anwendbar sein wird.

Dieser Band der Reihe Fachwissen Technische Akustik behandelt die in der Bauakustik meistverbreiteten Messmethoden, vom theoretischen Hintergrund uber anwendungspraktische Fragestellungen bis hin zu den nationalen und internationalen Normen. Die Normenreihe der DIN EN ISO 12354 dient dabei als roter Faden, da sie die messbaren Groessen der Bauakustik in einen Gesamtzusammenhang bringt. Ausgehend von den Aufgabenstellungen der bauakustischen Messtechnik werden die in Frage kommenden Kenngroessen erlautert. Ein wesentlicher Aspekt ist der Zusammenhang zu den bestehenden nationalen und internationalen Normen. Schwerpunktmassig werden die Grundprinzipien der Luft- und Trittschalldammung behandelt. Beschrieben werden Messverfahren, die im Labor und in Gebauden zum Einsatz kommen. Dabei wird ausfuhrlich auf die Schalldammung als Bauteil- bzw. Systemeigenschaft eingegangen. Die aus den physikalischen Grundlagen ableitbaren Voraussetzungen der Messverfahren wie z.B. die Anforderungen an die Schallfelder und die daraus ableitbaren Festlegungen der Messverfahren (z.B. Position und Anzahl von Lautsprechern und Mikrofonen) werden eingehend diskutiert. Auf praktische Fragestellungen wie die Notwendigkeit der Fremdgerauschkorrektur oder den Einfluss der Koerperschallnachhallzeiten auf die Messergebnisse wird bei den jeweiligen Messverfahren ebenfalls Bezug genommen. Ein ausfuhrliches Literatur- und Normenverzeichnis erganzt die behandelten Themen, so dass eine weiterfuhrende Vertiefung ermoeglicht wird.

Fur akustische Planungen ist es unerlasslich zu wissen, wie viel Schall eine Quelle abstrahlt. Auch die Wahl einer gerauscharmen Maschine ist nur moeglich, wenn die jeweiligen Herstellerangaben miteinander vergleichbar sind. Die Schallleistung ist in beiden Fallen die passende Groesse, da sie die Schallabstrahlung einer Quelle unabhangig vom umgebenden Raum beschreibt. Gerade diese Ortsunabhangigkeit ist aber erforderlich, um mehrere Quellen zuverlassig vergleichen zu koennen oder um z.B. die an einem Arbeitsplatz in einer Werkhalle oder an einem Immissionsort in der Nachbarschaft zu erwartenden Gerauschimmissionen prognostizieren zu koennen. In dem Band "Schallleistung" werden die theoretischen Grundlagen erlautert und verschiedene, grundlegende Messmethoden vorgestellt. Damit wird die Leserin oder der Leser in die Lage versetzt, das fur eine spezifische Messaufgabe passende Messverfahren auszuwahlen und, falls in den einschlagigen Regelwerken keine Vorgaben fur besondere Einzelfalle zu finden sind, angepasste Loesungen zu erarbeiten, die mit den jeweiligen Messprinzipien in Einklang stehen.

In diesem Band der Reihe Fachwissen Technische Akustik werden Grundlagen der Abtastung und Quantisierung, digitale Filter sowie mehrere digitale Signalverarbeitungsmethoden beschrieben: Echtzeit-Frequenzanalysator, 2-Kanal-FFT-Analysator mit Sweep- oder Rauschanregung und Maximalfolgenmesstechnik. Anwendungen und Fehlerquellen der digitalen Messverfahren werden an Beispielen diskutiert.

The Second Edition of the bestselling Measurement, Instrumentation, and Sensors Handbook brings together all aspects of the design and implementation of measurement, instrumentation, and sensors. Reflecting the current state of the art, it describes the use of instruments and techniques for performing practical measurements in engineering, physics, chemistry, and the life sciences and discusses processing systems, automatic data acquisition, reduction and analysis, operation characteristics, accuracy, errors, calibrations, and the incorporation of standards for control purposes.

Organized according to measurement problem, the Spatial, Mechanical, Thermal, and Radiation Measurement volume of the Second Edition

• Contains contributions from field experts, new chapters, and updates to all 96 existing chapters
• Covers instrumentation and measurement concepts, spatial and mechanical variables, displacement, acoustics, flow and spot velocity, radiation, wireless sensors and instrumentation, and control and human factors

A concise and useful reference for engineers, scientists, academic faculty, students, designers, managers, and industry professionals involved in instrumentation and measurement research and development, Measurement, Instrumentation, and Sensors Handbook, Second Edition: Spatial, Mechanical, Thermal, and Radiation Measurement provides readers with a greater understanding of advanced applications.

The most common activated sludge operating problems causing poor plant performance are related to solids separation. Especially common are bulking and foaming. Without a proper scientific foundation to support the efforts of wastewater treatment plant management, many attempts to thwart bulking and foaming have failed.

Manual on Solving Activated Sludge Bulking, Foaming, and Other Solids Separation Problems provides the critical scientific and practical underpinnings needed to understand and combat these problems. The third edition of this flagship text is a comprehensive, concise guide to the microbiological and technical aspects of controlling all types of solid separation problems.

The scientific theory is applied to real-world scenarios, greatly increasing the number of real-world examples of successful control methods. New information is also included on filamentous organism growth and its application in the control of sludge bulking and foaming. Now plant operators, regulators and wastewater engineers have a complete guide for battling these formidable design and operating problems.

La (TM)introduzione delle lauree triennali ha in molti casi costretto i docenti a ridurre drasticamente il numero di ore di insegnamento e quindi la (TM)estensione dei programmi dei corsi di Fisica.

In questo volumetto l'autore si A] proposto di esporre sinteticamente ma con il massimo rigore possibile il corso di Fisica Generale I evitando le dimostrazioni delle leggi fisiche, ma dando la prioritA alle applicazioni di tali leggi e allo svolgimento di esercizi che in genere viene trascurato in molti corsi.

Ha cercato pertanto di presentare i fenomeni fisici sottolineando, dove possibile, la loro presenza nella vita quotidiana e le loro piA semplici e immediate applicazioni, consentendo in tal modo agli studenti di vedere la Fisica non piA come una interminabile serie di formule ma come un nuovo modo di interpretare e di capire i fenomeni naturali inanimati (del resto non dobbiamo dimenticare che il termine greco da cui deriva il suo nome A] fisis, fisis, ovvero natura).

Il contenuto A] completo, comprendendo anche capitoli quali la meccanica relativa, i fluidi, la termodinamica dei ciclia ] Al termine di ogni capitolo viene riportato un formulario che riassume sinteticamente le leggi piA importanti esposte nel capitolo, premessa questa indispensabile per permettere allo studente la risoluzione di problemi che segue. Il CD allegato al volume, presenta una raccolta di problemi molto piA ricca.

The Second Edition of the bestselling Measurement, Instrumentation, and Sensors Handbook brings together all aspects of the design and implementation of measurement, instrumentation, and sensors. Reflecting the current state of the art, it describes the use of instruments and techniques for performing practical measurements in engineering, physics, chemistry, and the life sciences and discusses processing systems, automatic data acquisition, reduction and analysis, operation characteristics, accuracy, errors, calibrations, and the incorporation of standards for control purposes. Organized according to measurement problem, the Electromagnetic, Optical, Radiation, Chemical, and Biomedical Measurement volume of the Second Edition: Contains contributions from field experts, new chapters, and updates to all 98 existing chapters Covers sensors and sensor technology, time and frequency, signal processing, displays and recorders, and optical, medical, biomedical, health, environmental, electrical, electromagnetic, and chemical variables A concise and useful reference for engineers, scientists, academic faculty, students, designers, managers, and industry professionals involved in instrumentation and measurement research and development, Measurement, Instrumentation, and Sensors Handbook, Second Edition: Electromagnetic, Optical, Radiation, Chemical, and Biomedical Measurement provides readers with a greater understanding of advanced applications.