Article : Autonomous System For Non Destructive Evaluation

Title

Autonomous System For Non Destructive Evaluation

Author

R.Shimila, M.Chithrarth, 3K.Charen

Inspection robots are gaining attention for non-destructive evaluation (NDE) of engineering structures, especially for monitoring structures which are inaccessible and hazardous for human interventions. The project aims at designing and developing an autonomous inspection robot which can perform ultrasonic testing for ferromagnetic structures. An on-board storage device is used to store the data received from the transducer during the process of inspection to avoid communication through radio frequency. The exact positioning of the robot is achieved by the data derived from optical wheel encoders. A compact Pulse -receiver is used for activating the pulse echo transducer at the desired frequency. The power required by the entire system is reduced and optimized also by autonomously switching off the Pulse-receiver through an optocoupler switch while the robot is translating from one position to another. The entire system is governed by a microcontroller board located on the main circuit board of the robot. 

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