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A new type of hybrid fish-like microrobot

  • Wei ZhangEmail author
  • Shu-Xiang Guo
  • Kinji Asaka
Article

Abstract

In order to develop a new type of fish-like microrobot with swimming, walking, and floating motions, in our past research, we developed a hybrid microrobot actuated by ionic conducting polymer film (ICPF) actuators. But the microrobot had some problems in walking and floating motions. In this paper, we propose a concept of hybrid microrobot (see Fig. 1). The microrobot is actuated by a pair of caudal fins, a base with legs and an array of artificial swim bladders. We have developed a prototype of the base with legs and one artificial swim bladder, respectively, and carried out experiments for evaluating their characteristics. Experimental results show the base with legs can realize walking speed of 6 mm/s and rotating speed of 7.1 degrees/s respectively, and the prototype of the artificial swim bladder has a maximum floatage of 2.6 mN. The experimental results also indicate that the microrobot has some advantages, such as walking motion with 2 degrees of freedom, the walking ability on rough surface (sand paper), the controllable floatage, etc. This kind of fish-like microrobot is expected for industrial and medical applications.

Keywords

Biomimetic locomotion ionic conducting polymer film (ICPF) actuator hybrid microrobot underwater microrobot 

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Copyright information

© Institute of Automation, Chinese Academy of Sciences 2006

Authors and Affiliations

  1. 1.EngineeringKagawa UniversityTakamatsuJapan
  2. 2.Harbin Engineering UniversityHarbinPRC
  3. 3.Kansai Research InstituteAISTMidorigaoka, OsakaJapan

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