ABSTRACT
Fiber optic vibration sensor measurement draws more interests of researchers and applications engineers for its exclusive and very valuable characteristics over the past few decades. It is mainly used to sense the physical and chemical properties such as micro-bending, strains, vibrations ,accelerations, linear and rotary position, temperatures ,pressures, determination of pH, refractive index of liquid solution, pipeline condition monitoring etc.
Fiber optic sensors have a variety of special benefits for example faster response, low-cost fabrication, very light weight, highly sensitive plus non-reactive to electromagnetic interference. Fiber optic sensors can also be classified under various types based on sensing methods and applications.
These distinctive and valuable application features facilitate an extensive range of industries such as biomedical, aerospace, structural health monitoring, transportation, oil-pipe condition etc. This paper discusses about the basic working principle of fiber optic sensing technology, various types of fiber optic sensors and their applications and future scope of fiber optic sensors.