This paper gives a short introduction to FBG sensors, points out their special strengths and weaknesses and describes a measuring system which enables strain gages and FBGS to be measured simultaneously, providing all data processing functions originally developed for the strain. This paper gives a short introduction to FBG sensors, points out their special strengths and weaknesses and describes a measuring system which enables strain gages and FBGS to be measured simultaneously, providing all data processing functions originally developed for the strain. The os3100 is a spot-welded or epoxy-mounted optical strain gage based on fiber Bragg grating (FBG) technology. The os3100 Optical Strain Gage is designed to make fiber handling easy and sensor installation fast and repeatable. Its stainless steel carrier holds the FBG in tension, using no epoxy. Fiber optic sensor for strain measurements, and particularly FBG (Fibre Bragg Grating) sensors, has been used for the last 20 years, and they have built up a confidence in its performances. FBGs can measure the strain with accuracy similar to the standard strain gages and extensometers, and also. Surface mounted FBG strain sensor MS-01/MST-01 can meet the strain measurement needs of various occasions, and can be installed in different monitoring positions such as concrete surfaces or steel surfaces. Mainly used to measure the strain of steel structures and concrete surfaces. These sensors possess great sensitivity and reliability, which explains their growing popularity across various engineering and monitoring applications.
