Technology Inspired by dolphin. How does this sonar system work?
Do you know? Dolphins are known as sea creatures that often make noises despite living in the depths of the water. These intelligent mammals have a system they use to communicate and receive stimuli called the sonar system.
This system is useful for detecting objects in the ocean, searching for food, and communicating with each other.
How does this sonar system work?
Dolphins breathe through holes in the top of their heads. Just below this hole are small pockets filled with air. By passing air through these sacs, dolphins create high-frequency sounds. These air sacs act as acoustic mirrors to focus the sound produced by tiny clumps of fatty tissue just below the breathing opening. Then, this sound is intermittently radiated toward the surroundings.
Dolphin sound waves bounce back instantly when hitting an object. The reflected sound waves are trapped in the part of the lower jaw called the “acoustic window”. From there sound information is passed to the middle ear and finally to the brain for translation. The sound reflected in the environment provides detailed information about the distance of objects, their size, and movement. This is how dolphins know the location of their prey.
Dolphins can also send messages to each other even though they are more than 220 km apart. Dolphins communicate to find mates and to warn each other of danger. With this sonar system, dolphins appear to scan the sea floor like an electronic scanner. This sonar system is then applied to the technology used in the manufacture of submarine radars.
British scientists are developing a radar that could help detect the presence of bombs more easily, using a dolphin-inspired concept. The device emits two signal vibrations that mimic the way dolphins aim at their prey.
While traditional radar only uses signal vibration so far. The signal’s two vibrations, known as Twin Inverted Pulse Radar (TWIPR), can distinguish electronic objects, which are usually made into explosives, from other objects such as pipes or nails. Experts say the system is “promising”. The radar was developed by a team led by Professor Tim Leighton of the University of Southampton and scientists from University College London. Professor Leighton was inspired by the way dolphins can process their sonar signals to locate prey in bubbling water.
Dolphins are animals that inspire a lot of research. Some dolphins blow bubble nets around schools of fish to force them to forage. Their sonar won’t work if they can’t spot the fish by the bubbles they create.
The scientists wanted to see if the same technique could be applied to radio waves, so they developed a system that also transmits paired signals. The radar device developed by the team is just 2cm long and costs less than £1.
In testing this radar, the team tried to detect the typical circuits commonly used in explosives, which are also surrounded by different types of metal. Radar sounds 100,000 times more powerful when placed near bomb circuitry than any other metal. “This technology can also be applied to other things, such as B. Magnetic resonance imaging (MRI) tests and possibly fire detection.
In addition to detecting bombs, Delphin sonar can also be used in submarine technology. After years of research, the German engineers who invented the dolphin skin cell design imitated it and managed to create the outer layer of a submarine with the same properties.
This was described by Harun Yahya, an Islamic writer, and scholar from Turkey, in his book entitled For Men of Understanding. According to him, the structure of the body of dolphins in the form of a spiral gives them the ability to move very quickly in the water. This is believed to inspire scientists to develop submarine technology.
The structure of the submarine design consists of two layers of rubber, and between the two layers is a bladder that resembles a dolphin’s skin cell. “Using this layer increases the submarine’s speed by up to 250 percent,” writes the man, who was born on February 2, 1956, in the book.
In addition, a scientist known for refuting the theory of evolution (Darwinism) also said that modern submarines are now using sonar systems as navigation devices in the water. The same sonar system has been used as a navigation device by dolphins since the “creation” of the first marine mammals.
Dolphins can emit sound waves of 200,000 hertz (vibrations per second) from a special organ on their head. With the help of these vibrations, they can judge direction, distance, size, speed, and all sorts of obstacles in their way. “The working principle of sonar is the same as this ability of dolphins – the working principle of sonar (in submarines) is the same as the ability of dolphins,” said Harun Yahya.