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The development of underwater exploration robots is expected for the biological research of aquatic life. In particular, biomimetic robots are possible to investigate aquatic organisms without affecting them seriously. A Manta robot has been already developed by mimicking the pectoral fin of the manta ray. Note however that it is difficult to obtain the self-position data, because small AUVs like...
The development of underwater robots has been required for biological research in the sea. Therefore, it needs biomimetic robots because they hardly affect the behavior of creatures. We have developed a Manta robot that has propulsion mechanisms with pectoral fins, mimicking the pectoral fin of the manta. The conventional Manta robot is influenced by a righting moment varies according to the distance...
The Manta robot is a kind of underwater robot that uses only one pair of right and left pectoral fins to produce swimming propulsive forces. The measurement system of a Manta robot used in this work includes a gyro, an accelerometer and a magnetometer. This paper is devoted to discuss the attitude determination algorithm of such a Manta Robot. Since the attitude determination combining the accelerometer...
Biomimetic robots are possible to be used for investigating aquatic lives without affecting them. We have already developed a Manta robot that has propulsion mechanisms with pectoral fins, which are constructed by mimicking the pectoral fin of the manta ray. However, the swimming speed of the conventional Manta robot does not reach to those of many aquatic lives. In this paper, we improve the propulsion...
In recent years, autonomous unmanned underwater vehicles (AUVs) for underwater exploration are studied and developed activity. It is important to control the position and attitude of an AUV in underwater with stream change. A conventional AUV moves underwater using screw propellers. In underwater, fishes control own fins and body more freely than an AUV using screw propellers. A kind of the neural...
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