Contribution: Takumi Kawasetsu, et al.

Magnetorheological elastomer-gel tactile sensor with an electromagnet

Takumi Kawasetsu, Takato Horii, Hisashi Ishihara, and Minoru Asada
Department of Adaptive Machine Systems, Graduate School of Engineering, Osaka University, Suita 565-0871, Japan

We have been developing a magnetoreological elastomer-gel tactile sensor which responds to surface deformations in association with a permanent magnet, a magnetic sensor, and a magnetoreological elastomer-gel. Its response properties such as the maximum sensitivity and spatial distribution of response can be modified by different spatial arrangement of the components and the strength of the magnetic field generated by the magnet. We here employ an electromagnet as a magnetic field source of the proposed sensor for adjusting the strength of magnetic field easily. Results show that the sensor outputs proportionated to the strength of magnetic field generated by the electromagnet, and that the sensor outputs were varied with the distance between the electromagnet and magnetic sensor.