Advanced AE Technology for High-Power Microwave Radar Tubes.

Acoustic emission (AE) is one of the most important non-destructive testing (NDT) methods for materials, constructions and machines. Acoustic emission is defined as the transient elastic energy that is spontaneously released when materials undergo deformation, fracture, or both. This interdisciplinary book consists of 17 chapters, which widely discuss the most important applications of AE method as machinery and civil structures condition assessment, fatigue and fracture materials research, detection of material defects and deformations, diagnostics of cutting tools and machine cutting process, monitoring of stress and ageing in materials, research, chemical reactions and phase transitions research, and earthquake prediction.

This book is intended for all those professionals with interest in developing a basic background in acoustic emission and its use as a non-destructive testing technique. The monitoring of high-power microwave radar tubes is an example of the use of such techniques. This book will also be of interest to those involved in the design, maintenance and procurement of high-power microwave radar tubes. And finally, it is also intended for those students of physics and engineering interested in specializing in acoustics and acoustic techniques.

Acoustic emission (AE) is one of the most important non-destructive testing (NDT) methods for materials, constructions and machines. Acoustic emission is defined as the transient elastic energy that is spontaneously released when materials undergo deformation, fracture, or both. This interdisciplinary book consists of 17 chapters, which widely discuss the most important applications of AE method as machinery and civil structures condition assessment, fatigue and fracture materials research, detection of material defects and deformations, diagnostics of cutting tools and machine cutting process, monitoring of stress and ageing in materials, research, chemical reactions and phase transitions research, and earthquake prediction.

This thesis is a study of the recent advances in microwave device technology that can be applied to the improvement of phased array radar systems which are able to provide multifunction capabilities to navy ships. The study was undertaken to provide guidance to military planners who are often required to keep abreast of developments in a rapidly changing field of technology. The fact that even the most advanced presently used radar systems in the navy are based on five to ten year-old technology, verifies the need for this study. Microwave Power Modules which combine vacuum tube and Solid State technology have been developed and have demonstrated advanced performance characteristics. Their advantages, such as very wide bandwidth and ability to operate at much higher ambient temperatures over that of the Solid State devices have opened up new opportunities for their use in Radar systems. However, output power capability of MPM while growing rapidly is still below the minimum level required for a phased array radar on board a midsize hip operating in confined waters. The present technology available however in Solid State Transmit Receive modules, does supply the capabilities needed for a realization of an active phased array radar. Such a system will enhance ships operational capabilities while achieving a reduction of the prime power consumption as well as in needed space. The applicability and characteristics of these devices re presented in this thesis.

Please note this is a Short Discount publication. Access both contact and company information on all 4950 European manufacturers, distributors and agents for 550 electronics components and sub–assembly product classifications throughout West and East Europe in one comprehensive Volume. Applications: • Sourcing of specific product types through local distributors or manufacturers • Location of new regional channels of distribution or identification of new European business partners • Competitor tracking • Sales lead generation Entries include: • Key names executives • Full address, telephone and fax details • Size indications including number of employees • Products • Manufacturers represented and agency status