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Technology of the DRDO Sonar Drone Explained

Technology of the Sonar Drone Sonar dome is a protective cover to sonar equipment of surface war ships. The dome is designed to house sonar array, and to maximize the performance of the array by reducing the effects of noise of water turbulence and protecting the array from wave slamming, minor collisions etc. In the design of sonar dome, both structural and acoustic considerations come into play. Typical structural constraints may include the deformation of the structure under steady external flow, accelerations, slamming loads and shock loads. From an acoustic stand point of view, the goal is to maximize the fidelity of incoming sound by ensuring that the self-noise and flow induced noise can be inherently minimized. The current sonar domes in advanced composites bring additional benefi...
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In case you come across any suspicious activity, any suspicious movement or have any information to tell to the Anti-Terror Squad, please take a note of the new ALL INDIA TOLL-FREE Terror Help-line '1090'. Your city's Police or Anti-Terror squad will take action as quickly as possible. Remember that this single number 1090 is valid all over india. This is a toll free number and can be dialled from mobile phones also. Moreover, the identity of the caller will be kept a secret.

Please try to make aware each and every citizen of india about this facility.

Helpline 1090