At the fields of robotics, sensing for artificial arm and leg, and investigating surface property, the sensor that is applicable to response for shear force as well as normal force should be developed. Our developed haptic sensor by combining metal particles in balloon crude rubber has high quality of sensing for 0.01 N ordered force and has the ability of responding at the case of rubbing any bodies. The rubber involves MCF as one of intelligent fluid, and then it is called MCF rubber. Because of making the rubber more sensitive to the shear force, the fingerprint is also attached on its surface. The MCF rubber is applicable for sensing at various fields: paper, clothes, human skin and so on. The present study also clarifies the effect of the fingerprint on the electric current flowing inner the MCF rubber.
