I want information about electronic circuit for crack detection using rotating electromagnetic field with circuit diagram electronics project ....etc

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i m sangeetha
currently i m doing project on rail crack detector.
in this we r using ir transmitter & receiver to sense and one dc motor ,relay setup to stop the train.
I NEED
1) in real time how for does the ir sense , their full infomation
2)how it controls the train ....etc

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Abstract
The main problem about a railway analysis is detection of cracks in the structure.
If these de¯ciencies are not controlled at early stages they might cause huge economical problems
a®ecting the rail network (unexpected requisition of spare parts, handling of incident and/or
accidents). Within this framework, the early and continuous use of Non Destructive Tests can
be useful. In this context, Eddy Current Testing is increasing in importance and popularity.
Particularly, in this paper we exploit the measure of normal com ....etc

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pls send a block diagram,equipment and procedure for the above title ....etc

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I want to know project report on this topic. mainly it includes abstract and equipment and also block diagram. ....etc

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please send mee the more information basing on the above topic .....plzz send it as soon as possible ....etc

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The circuit presented here can beused for connecting two telephones in parallel and also as a2-line intercom.Usually a single telephone is connectedto a telephone line. If another telephoneis required at some distance, a parallelline is taken for connecting the othertelephone. In this simple parallel line operation,the main problem is loss of privacybesides interference from the otherphone. This problem is obviated in thecircuit presented here.Under normal condition, two telephones(telephone 1 and 2) can be usedas intercom while tel ....etc

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respected sir
i have required circuit diagram of crack detection in railway tracks for my finel year project and also i required program of it so please help me......
thank you ....etc

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I am doing a project in railway track crack detection using eddy current .I am looking for a circuit for detection of eddy current. Then using a GPS module the position of crack is located and this position is send via GSM module send this to the stationmaster number. ....etc

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i want circuit diagram for railway track crack detection system by using ultrasonic sensor,gps and gsm
....etc

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