Different types of Non-Destructive tests (NDT) are there to detect voids and cracks in concrete such as Ultrasonic Pulse Echo, Ultrasonic Pulse Velocity, Ground Penetrating Radar, Impact Echo Method, X-ray Scanning Method, Rebound Hammer Method, Infrared Thermography Method .In which Infrared Thermography method is discussed in this paper
As concrete is used in newer areas and evidence is coming to light of premature deterioration in concrete structures there is a need to develop new methods for quality control at the time of concrete construc ....etc

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Definition
Satellites have been used for years to provide communication network links. Historically, the use of satellites in the Internet can be divided into two generations. In the first generation, satellites were simply used to provide commodity links (e.g., T1) between countries. Internet Protocol (IP) routers were attached to the page link endpoints to use the links as single-hop alternatives to multiple terrestrial hops. Two characteristics marked these first-generation systems: they had limited bandwidth, and they had large latencies t ....etc

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Infrared thermography has evolved into one of the most valuable diagnostic tools for Predictive Maintenance of electrical equipment from reliability and safety point of view.

By detecting anomalies often invisible to the naked eye, thermography allows corrective action to be taken before costly system failures occur or where safety of man and machine are at stake. By utilizing thermography to inspect electrical systems and components under load, the faulty components can be identified and thus heavy loss of health and wealth is avoided.

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Introduction


Thermography is a non-contact, non-destructive test method that utilizes a thermal imager to detect, display and record thermal patterns and temperatures across the surface of an object. Infrared thermography may be applied to any situation where knowledge of thermal profiles and temperatures will provide meaningful data about a system, object or process.

Since infrared radiation is emitted by all objects based on their temperatures, according to the black body radiation law, thermography makes it possible to see one's en ....etc

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Infrared thermography has evolved into one of the most valuable diagnostic tools for Predictive Maintenance of electrical equipment from reliability and safety point of view. By detecting anomalies often invisible to the naked eye, thermography allows corrective action to be taken before costly system failures occur or where safety of man and machine are at stake. By utilizing thermography to inspect electrical systems and components under load, the faulty components can be identified and thus heavy loss of health and wealth is avoided. Infrare ....etc

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