介绍了一种新型双通道光纤气压测量系统的原理和结构组成.该系统由双通道光纤位移传感器和高精度金属膜盒组成,用光纤位移传感器检测气压变化引起的膜盒自由表面的位移.气压测量系统的输出特性参数与系统光源的光强无关,只取决于系统气压传感部件的结构参数.系统的信号处理电路包括光信号前置放大电路、窄带滤波电路、真有效值转换电路以及A/D转换和单片机电路.根据实验测定的系统输出特性,该系统的测量精度达到±0.1 hPa,分辨率小于0.2 hPa.
参考文献
| [1] | Jin Wei,Liao Yanbiao,Zhang Zhipeng,et al.Guide-wave Optics Sensor:Principle and Technology (导波光学传感器:原理与技术)[M].Science Press,1998.(in Chinese). |
| [2] | Zhang Yilin,Yu Jianrong,Liao Yan Biao,et al.Design of optic fiber pressure sensor[J].Journal of Optoelectronics·Laser (光电子·激光),2002,13(5):477-479 (in Chinese). |
| [3] | Zhang Shaojun,Liu Yueming.A novel optic fiber pressure sensor[J].Opto-Electronic Engineering (光电工程),2000,27(4):53-56 (in Chinese). |
| [4] | Xiao S R,Chang J H,Ben F L.Multi-path optical fiber sensor for atmospheric pressure[C].Proc.of SPIE,2007,11:6836 (to be published). |
| [5] | Xiao Shaorong,Li Jianbai.Real-time measuring system with two-channel fiber optic displacement sensor[J].Semiconductor Optoelectronics (半导体光电),2000,21(6):414-417 (in Chinese). |
| [6] | Liu Deming,Xiang Qing,Huang Dexiu.Fiber Optics (光纤光学)[M].Beijing:National Defence Industry Press,1995.(in Chinese). |
| [7] | Xiao Shaorong.Properties of the two-way optical fiber sensor for displacement based on parabolic index fiber[J].Chinese Journal of Quantum Electronics (量子电子学报),1999,16(2):186-189 (in Chinese). |
| [8] | Wang Yuanhao,Xiao Shaorong,Mao Xiaoli.Design of signal conditioning circuit in photo-electricity inspecting system for formaldehyde[J].Instrument Technique and Sensor (仪表技术与传感器),2007,45(11):55-57 (in Chinese). |
上一张
下一张
上一张
下一张
计量
- 下载量()
- 访问量()
文章评分
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%