structural design and output characteristic analysis of magnetostrictive tactile sensor for robotic applications
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2018
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Abstract
A novel magnetostrictive tactile sensor has been designed according to the transduction mechanism of cilia and Villari effect of iron-gallium alloy. The tactile sensor consists of a Galfenol beam, a pair of permanent magnets, a Hall sensor and a signal processing system. Compared with the conventional tactile sensor, our proposed tactile sensor can not only detect the contact-force, but also sense stiffness of an object. The performance and measurement range of tactile sensor have theoretically been analyzed and experimentally investigated. The results have revealed that the sensibility of tactile sensor for sensing force is up to 22.81mV/N at applied bias magnetic field of 2.56kA/m. Moreover, the sensor can effectively discriminate objects with different stiffness. The sensor is characterized by high sensitivity, good linearity, and quick response. It has the potential of being miniaturized and integrated into the finger of a robotic hand to realize force sensing and object recognition in real-time.
| Reference Key |
zheng2018aipstructural
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|---|---|
| Authors | ;Wendong Zheng;Bowen Wang;Huaping Liu;Yunkai Li;Ran Zhao;Ling Weng;Changgeng Zhang |
| Journal | journal of hydrology: x |
| Year | 2018 |
| DOI |
10.1063/1.5006448
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