水压传感器

所不同的是FBG水压传感器采用波长解调方式，CFG水压传感器采用光强解调方式。

FBG water pressure sensor uses wavelength demodulation and CFG water pressure sensor uses light intensity demodulation .

为了补偿对光纤光栅应力传感器的温度干扰，FBG水压传感器采用被动温度补偿和残留温度实时补偿的方式。

For the purpose of temperature-compensation , FBG water pressure sensor uses passive temperature compensation and real time compensation of the residual temperature .

本文提出的CFG水压传感器采用的是双啁啾光纤光栅，利用两段啁啾光栅的温致波长漂移的一致性，实现了被动温度补偿。

The double chirped fiber gratings are used in the strain sensor proposed in this paper . Wave length shift due to changes in temperature on the two fiber grating is uniform , light intensity interrogation was utilized for the strain sensor .

矿井下用光纤光栅水压传感器及系统

Fiber Grating Water Pressure Sensor and System for Mine

智能水压传感器可以直接测量井下水文的压力，智能风压传感器可测量气体的绝对压力，通过结合智能风速传感器测得的风速即可推算风压。

The water pressure sensor can measure the water pressure and temperature directly . The air pressure sensor can measure the pressure and temperature . We can use the pressure , temperature and the wind speed to calculate the air pressure .

本论文首先介绍了传感器的组成和工作原理，阐明了传感器信号的频域分析原理，针对试验需要选取了振动、摆度、水压等传感器，并对传感器进行了率定。

First of all , the article introduces the composition and working principles of the sensors , and illustrates the frequency domain analysis of the signal . Then the appropriate sensors have been used according to the needs of the test .

重点论述了水压测试系统传感器的设计、应用，模拟滤波器的分析设计；模拟电路的设计；

The paper focuses on the designation and application of the sensors used in the system , the analog design and the digital design .