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Predictive Maintenance using Thermal Imaging

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Predictive Maintenance using Thermal Imaging

Postby livi » Mon Feb 13, 2012 11:46 am

pls upload ppt r pdf files (if possible d entire seminar report) of 1) predictive maintenance using thermal imaging 2) smart bombs 3) f1 track design and safety 4)micro- electromechanical systems 5)infrared curing and convection curing 6) nano enabled coating makes aircraft invisible.
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Re: need urgent help!!

Postby Prasanth » Mon Feb 13, 2012 2:35 pm

Predictive Maintenance using Thermal Imaging

Thermal imaging (Infrared thermography) is a technique that produces a visible graph or thermographic image of thermal energy radiated from objects. The human eye can only see the narrow middle band of visible light that encompasses all the colours of light in the rainbow. Thermography utilizes a portion of the infrared band of the electromagnetic spectrum between approximately 1 and 14 microns. Thermal infrared images translate the energy transmitted in the infrared wavelength into data that can be processed into a visible light spectrum video display. Thermal infrared imagers are detector and lens combinations that give a visual representation of infrared energy emitted by all objects. In other words thermal imagers let you “see” heat.

Depending upon the sophistication used, thermography is capable of providing very detailed images of situations invisible to the naked eye. Thermal imaging thus finds its applications in different fields


1. A special lens focuses the infrared light emitted by all of the objects in view.

2. The focused light is scanned by a phased array of infrared-detector elements. The detector elements create a very detailed temperature pattern called a thermo gram. It only takes about one-thirtieth of a second for the detector array to obtain the temperature information to make the thermo gram. This information is obtained from several thousand points in the field of view of the detector array.

3 The thermo gram created by the detector elements is translated into electric impulses.

4 The impulses are sent to a signal-processing unit, a circuit board with a dedicated chip that translates the information from the elements into data for the display.

5. The signal-processing unit sends the information to the display, where it appears as various colors depending on the intensity of the infrared emission. The combination of all the impulses from all of the elements creates the image
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