Lock In Thermography

This is the first book on lock-in thermography, an analytical method applied to the diagnosis of microelectronic devices. This useful introduction and guide reviews various experimental approaches to lock-in thermography, with special emphasis on the lock-in IR thermography developed by the authors themselves.

The book deals with lock-in thermography as a special variant of the well known IR thermography for all applications where the heat of the sample can be pulsed. Compared to steady-state thermography, the lock-in mode enables a much improved signal/noise ratio (up to 1000x) by signal averaging, a far better lateral resolution, and it may provide inherent emissivity correction. Thus, it replaces thermal failure analysis previously carried out by using conventional IR microscopy, liquid crystal imaging, or fluorescent microthermal imaging. Various experimental approaches to lock-in thermography are reviewed with special emphasis on the systems developed by the authors themselves. Thus, the book provides a useful introduction to this technique and a helpful guide for scientists and engineers working in electronic device failure analysis. It concludes with a detailed theoretical treatment of the propagation of thermal waves, which is presented as a basis for various applications, e.g., integrated circuits, MOS structures, solar cells and solar modules.

This is the first book on lock-in thermography, an analytical method applied to the diagnosis of microelectronic devices. This useful introduction and guide reviews various experimental approaches to lock-in thermography, with special emphasis on the lock-in IR thermography developed by the authors themselves.

A comprehensive text to the non-destructive evaluation of degradation of materials due to environment that takes an interdisciplinary approach Non-Destructive Evaluation of Corrosion and Corrosion-assisted Cracking is an important resource that covers the critical interdisciplinary topic of non-destructive evaluation of degradation of materials due to environment. The authors—noted experts in the field—offer an overview of the wide-variety of approaches to non-destructive evaluation and various types of corrosion. The text is filled with instructive case studies from a range of industries including aerospace, energy, defense, and processing. The authors review the most common non-destructive evaluation techniques that are applied in both research and industry in order to evaluate the properties and more importantly degradation of materials components or systems without causing damage. Ultrasonic, radiographic, thermographic, electromagnetic, and optical are some of the methods explored in the book. This important text: Offers a groundbreaking interdisciplinary approach to of non-destructive evaluation of corrosion and corrosion-assisted cracking Discusses techniques for non-destructive evaluation and various types of corrosion Includes information on the application of a variety of techniques as well as specific case studies Contains information targeting industries such as aerospace, energy, processing Presents information from leading researchers and technologists in both non-destructive evaluation and corrosion Written for life assessment and maintenance personnel involved in quality control, failure analysis, and R&D, Non-Destructive Evaluation of Corrosion and Corrosion-assisted Cracking is an essential interdisciplinary guide to the topic.

Infrared thermography (IRT) is a non-contact, non-invasive methodology which allows for detection of thermal energy that is radiated from objects in the infrared band of the electromagnetic spectrum, for conversion of such energy into a visible image (such as a surface temperature map). This feature represents a great potential to be exploited in a vast variety of fields from aerospace to civil engineering, to medicine, to agriculture, etc. However, IRT is still not adequately enclosed in industrial instrumentation and there are still potential users who might benefit from the use of such a technique and who are not aware of their existence. This e-book conveys information about basic IRT theory, infrared detectors, signal digitalization and applications of infrared thermography in many fields such as medicine, foodstuff conservation, fluid-dynamics, architecture, anthropology, condition monitoring, non destructive testing and evaluation of materials and structures. The volume promotes an exchange of information between the academic world and industry, and shares methodologies which were independently developed and applied in specific disciplines.

Infrared Thermography in the Evaluation of Aerospace Composite Materials: Infrared Thermography to Composites provides an update on infrared thermography, a fast and reliable method for non-destructive evaluation of composite materials used in the aerospace field. The book describes composites and the main problems that can arise both during manufacturing and when in service, and then covers different thermographic non-destructive testing and evaluation techniques, including pulse thermography, lock-in thermography, and pulse phase. Each technique includes key examples and relevant references, with sections devoted to the usefulness of an infrared imaging device to monitor the behavior of a material under load, such as impact and bending. The book also includes discussions on standards, personnel certification, and training. Provides a comprehensive look at the use of infrared thermography in the materials science field Describes thermographic techniques of non-destructive testing in an easy way, and with links to aeronautical standards Addresses different types of composite problems and how they can be helped through the use of infrared thermography Includes key examples and relevant references, with sections devoted to the usefulness of an infrared imaging device to monitor the behavior of a material under load

Infrared Thermography (IRT) is commonly as a NDE tool to identify damages and provide remedial action. The fields of application are vast, such as, materials science, life sciences and applied engineering. This book offers a collection of ten chapters with three major sections - relating to application of infrared thermography to study problems in materials science, agriculture, veterinary and sports fields as well as in engineering applications. Both mathematical modeling and experimental aspects of IRT are evenly discussed in this book. It is our sincere hope that the book meets the requirements of researchers in the domain and inspires more researchers to study IRT.