Optical fiber sensor system for oil tanks

The optical fiber sensor system and its applications are described in this paper. This sensor system includes two parts: data acquisition part and data transportation part. The data acquisition part is used for measuring the parameters of oil tanks: level, temperature, pressure, flowrate, etc. The specifications of the system are given in this paper. The advantages of the sensor heads are with high stability, because the output signals from it are digital and can be propagated for long distance and long term use with high stability. The sensor system worked continually in laboratory for one year and three systems are installed in the field for field test more than two years in South China and North China now. The constructs and experiment results of the system in the field are described in detail.