1、本科毕业设计（论文） 井下永久传感器的研究与应用 本科毕业设计（论文） 摘 要 阐述了光纤传感器的优点和应用研究现状，光在光纤传输过程中，光纤传 感器件易受到外界环境的影响，如温度、压力、磁场、电场、位移等 ， 从而导致传输光的强度、相位、频率、偏振态等光波特征参量发生变化 ， 通过检测这些的变化就获得相应的物理量 。然后分别介绍光纤压力传感 器，光纤分布式温度传感器，光纤多相流传感器以及光纤流量传感器的特 点，结构，原理和优势与不足。论证了光纤传感技术以其独特的优势取代 传统电子传感技术的发展趋势。 关键词关键词：光纤传感器；测井；温度； 压力； 流量； 持率 本科毕业设计（论文） ABST
2、RACT The advantage and present situation of application and research of fiber optic sensor have been introuduced. When the light pass in the optical fiber ,the fiber optic sensor is easy to be affected by the outside world, such as temperature ,pressure ,magnetic field，electtical field and displacem
3、ent，which caused the changes of light wave characteristic scalar， such as intensity, phase , frequency , polarization of transmitting light. By means of examining the changes，which are one or more of distinguishing feature, composition rule, preponderanceand defect ,wo can obtain the relevant physic
4、al quantity. Then introuduce fiber optic of pressure, distributed temperature sensor of fiber , fiber optic of polyphasic flow and fiber optic of rate of flow esch after another It is demonstrated the developing tendency that the sensing technique of fiber with its distinctive preponderance will displacement the traditional electronical sensing technique. Keywords: fiber optic sensor well logging pressure temperature rate of flow holdup 本科毕业设计（论文） 目 录 第 1 章 前言1 1.1
