Research on Loading of the Soft and Hard Tissues Based on Water Hydraulic System with Fiber Bragg Grating Sensing

This paper presents the development of the designate experiment test bed, controller implementation and experiments of the water hydraulic system for soft and hard tissues via fiber Bragg grating (FBG) sensing measurement. In this research the conventional strain gage was replaced by FBG. Water hydraulic force is controlled by the servo motor positioning and calibrated through the pressure sensor feedback signal. Therefore, a precise positioning of the cylinder movement for actuating the tissues is driven by lead screw servo motor. Developed system can be used for observing the loading conditions of the soft and hard tissues. Signal transferring mechanism based on the dynamic response of interested tissue interface can be obtained via the developing FBG sensing apparatus