Abstract
In recent years, the needs of force measurement in medicine are becoming stronger to realize further effective treatments and quantitative assessments. In this paper, we propose a new force sensor using fiber optic that is compatible with medical applications. Fiber Bragg Grating (FBG) enables force measurement in the long axis of the fiber by measuring the wavelength shift of spectral response of light source. The presented backbone shape allay force sensor using FBG fiber optic was developed to realize a multi-DOF bending force sensing in a compact stick shape implementation with the capability of sterilization and temperature compensation. In this paper, the sensor structure, mechanical principle, prototype implementation and evaluation are descried.
