Development of Uniaxial Force Sensor Array for Tactile Sensation Using Fiber Bragg Gratings

In this paper, the 2-dimensional uniaxial force sensors array is introduced to detect the distributed force using fiber Bragg gratings. Uniaxial force transducer was designed to avoid the chirping and micro bending which degrade the performance of the sensor. The Bragg wavelength shift of the sensor was estimated using the finite element analysis. Using this uniaxial force sensor, the uniaxial force sensors array (3X3) was fabricated, and the performance of this sensors array was evaluated. The presented sensors array has very simple configuration and its wiring is very simple compared with any other force sensors arrays.