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Development of flexible force sensors using fiber Bragg grating for tactile sensing and its evaluation

In this paper the study of development of flexible force sensor using the fiber Bragg grating is presented. This force sensor consists of a Bragg grating optical fiber and flexible silicone rubber. This sensor does not have special structure to maximize the deflection or elongation, but have good sensitivity and very flexible characteristics. In addition, this sensor has the immunity to the electro magnetic field and can be multiplexed easily, which is inherited from the characteristics of fiber Bragg grating optical fiber sensor. In the future, this sensor can be used for the tactile sensor system minimizing the sensor size with suitable fabrication method.