China has introduced a soft-body bionic manta ray submersible capable of detecting simulated underwater explosive devices in extremely low-visibility waters.The robotic system uses forward-looking sonar to locate objects and side-scan sonar to map the seabed while transmitting real-time data to command terminals.
Modeled after manta rays, it mimics wave-like fin movements for stable propulsion, allowing it to carry complex equipment and operate sensitive sonar systems effectively.The submersible features long endurance, with batteries supporting full-speed operations for dozens of hours, traveling hundreds of kilometres, and extending operational range when gliding via buoyancy adjustments.
Engineers designed it to withstand extreme underwater pressure, protecting core equipment from conditions equivalent to around 200 atmospheres. It can navigate autonomously even if communication lines are cut.Multiple robotic manta rays can operate in groups, forming sonar networks that relay signals and convert satellite communications into sonar signals reaching deep into the ocean.
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