Intelligent monitoring technology for machine tools based on FBG sensing

Summary form only given. New demands are being placed on monitoring systems in the manufacturing environment since recent developments and trends in machining technology and machine tool design. Cutting force is reflected in cutting process characterization, and is generally measured using standard monitoring devices like piezoelectric and strain gauge dynamometers. The installation of strain gauges is structurally complicated and easily influenced by temperature and humidity variations. Piezoelectric sensors need to achieve high stability signals, are vulnerable to electromagnetic fields and are affected by other signals in a harsh electromagnetic environment. Fiber optic sensor technology, such as FBG, is considered to have great potential for sensing applications in manufacturing, due to the attractive characteristics of the sensors, such as small size, light weight, immunity to electromagnetic interference, corrosion resistance, distributed and multi-parameter measurement, etc. This talk will discuss the recent development of intelligent monitoring techniques for machine tools using advanced fiber optical sensing, which is able to enhance the machining system operation performance, and also increase the manufacturing precision.