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综述了光纤ｐＨ值传感器，详细阐述和分析比较了光吸收式、荧光特性式及折射率波动式三大类ｐＨ值传感器的工作原理及其各自的优点。还介绍了光纤ｐＨ值传感器作为一种新型传感技术，在生物工程、医学、环境监测及工业过程控制中的应用前景。
The optical fiber pH sensor is reviewed. The working principle and advantages of three kinds of pH sensors, which are light absorption, fluorescence and refractive index fluctuation, are elaborated and analyzed in detail. The application prospect of optical fiber pH sensor as a new sensing technology in bioengineering, medicine, environmental monitoring and industrial process control is also introduced.