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光导纤维除用于通信外,还有一类重要的非通信应用一光纤传感器(简称OFS)。OFS可分为传感型和传光型两大类:传感型是利用被测物理量改变(或称调制)光纤中光的强度、相位、偏振或波长,从而对物理量进行测量,而传光型则是用其他敏感元件来检测物理量,光纤只是用来传输信号。目前世界上正在研制诸如流量、温度、压力、电流、电压、磁场、电场、速度、加速度、位移、液面、振动、水声、角速度(陀
In addition to optical fiber used for communication, there is a class of important non-communication application of a fiber optic sensor (referred to as OFS). OFS can be divided into two types of sensing and light transmission: sensor type is the use of physical changes measured (change) (or modulation) in the fiber light intensity, phase, polarization or wavelength, so as to measure the physical quantity, Type is to use other sensitive components to detect physical quantities, optical fiber is only used to transmit signals. Currently the world is developing such as flow, temperature, pressure, current, voltage, magnetic field, electric field, speed, acceleration, displacement, surface, vibration,