Structure Design and Experiment of Eddy Current Flexible Tactile Sensor
Based on the principle of eddy current,a flexible tactile sensor which can detect three-dimensional force is designed.The sensor structure uses a combination of multi-coil arrays and flexible materials.The external force deforms the flexible material,which changes the distance between the thin metal layer and the coils,and then changes the induced voltage of each coil.Through the relationship between the external force and the induced voltage,the corresponding characteristic function is established to judge the direction and magnitude of the external force.According to the designed structure,the manufacturing process to prepare the sensor is determined.After a series of experiments,the output characteristics of the sensor were tested.These results show that the designed sensor has the three-dimensional sensing capability,which meets the requirement of the robot's flexible tactile sensing and the measurement of three-dimensional force.
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