Development of POF-Based Insole for Plantar Pressure and Ground Reaction Forces Monitoring

Fiber optic has become widely uses in industry. The development of the sensor technology using fiber optic has been one of main technology related with the optoelectronic and fiber optic communication industry. Many clinical technologies has beenusing the fiber optic such as dentistry and surgery. Being lightweight and able to multiplex are one of the fiber optics advantages that many industries use it. This study focuses on using polymer optical fiber (POF) to obtain data by using multiplexing technique where lateral section of the fiber optic will be used as sensor in the same fiber with two photodetectors for signal acquisition. Each sensor will be characterized with varied applied forces and pressures that resulted in different curvature radius for each sensor. Static and dynamic test were used as evaluation for the sensor performance. Different lengths and depths result in different variant and coefficient of each sensor. This smart insole can also be used in clinical evaluation as it can detect subject with flat foot.