Abstract
Corrosion is one of the serious problem affecting airforce and other aviation industries. It affects the aircraft on its wings, surface, between joints and fasteners. The presences of corrosion underneath the paints of surface and between joints are not easy to be detected. The unnoticed presence of corrosion may cause the aircraft to crash leading to human and money loses.

To detect the corrosion present on the metal surface, various methods and tests are used. These tests conducted should be such that it does not destroy or disassem ....etc

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ultrasonic sensor code for obstacle detection using avr

It is essential to give your robot eyes for preventing crashes. Ultrasonic sensors, also known as transducers, have a similar working system as a radar or sonar by interpreting the echoes of radio or sound waves generated by the sensor. In this way, a robot can detect obstacles and the distance to obstacles. In this article, we make an overview of most popular ultrasonic sensors used in robotic applications and tutorials to learn how to interface and programming these sensors in order to ....etc

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ABSTRACT.
The ultrasonic testing of concrete structures has posed many problems. Conventional methods such as pulse echo and pitch catch are of limited use due to its composition, aggregates will cause scattering and multiple reflections. Alternative ultrasonic methods have been recently investigated that examine the shape of the waveform as it traverses through a complex material, the idea being not to located a single defect but to determine the overall mechanical properties within a certain region. In damaged materials, particularly ones t ....etc

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this seminar seeks possiblity to preserve the compressive stress-induced micro cracks in concrete as they exist under applied loads. The results can be used to better understand and quantify the general relationship between stress level and crack development, as well as the effect of confinement on crack behavior. Also, it allows observations into the way small cracks are formed and then propagate in concrete, thereby making the application of fracture mechanics to concrete more accurate. Cylindrical specimens of concrete were subjected to test ....etc

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obstacle detection robot with ultrasonic sensors ppt

Obstacle detection Robot with Ultrasonic Sensors automatically senses the presence of a obstacle in its path and deviates its path or stops its journey. The obstacle detection mechanism is managed by a ultrasonic sensor which makes uses of ultrasonic waves to find the presence of a obstacle in its path.

The robot consists of an 8-bit microcontroller to communicate with the sensor and takes any action depending upon the feedback received from the ultrasonic sensor. Here the micro controlle ....etc

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to get information about the topic comparison between normal concrete high performance concrete full report ppt and related topic refer the page link bellow

http://seminarsprojects.net/Thread-high-performance-concrete--16244

http://seminarsprojects.net/Thread-high-performance-concrete-hpc-%E2%80%93-a-solution-to-various-problems?pid=26228&mode=threaded

http://seminarsprojects.net/Thread-analysis-of-durability-of-high-performance-concrete-using-artificial-neural-networksa

http://seminarsprojects.net/Thread-high-performance-concrete ....etc

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we want iee paper pdf and ppt of missile detector by ultrasonic means and activate the destroyer ....etc

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The study of micro cracks in concrete is very important to understand its behavior under loading and to improve this material. The direct observation in a scanning microscope is not a suitable method because the concrete is subject to drying shrinkage. Another indirect and non destructive method of observation by SEM is proposed. With this method using a single replica the micro cracks of concrete can be observed better than 0.5 m. ....etc

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Senix ToughSonic Ultrasonic Sensors detect objects or materials through the air using non-contact technology. They are easy to use and reliable. Most materials can be detected: hard or soft, any color or transparency, flat or curved. Unlike traditional proximity sensors, they operate over longer distances and can be set up to limit object detection within a user-specified distance band ( window ).
Introduction
At last year s CIRA Symposium our group introduced a
novel system for recognizing objects using the spectral information
cont ....etc

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sir looking for a presentation on light weight concret pls send me i need it for the presentstion ....etc

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