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建立于气液两相平衡的气敏电极已为人们所熟知。近年来研究了气液两相平衡的光纤化学传感器。作者之一曾报道了CO_2荧光传感器。本文在文献基础上对基于染料吸收的光纤SO_2传感器进行了探讨性的研究。光纤SO_2传感器在其结构上与气敏电极相似,所不同是采用感应膜光信号变化的特征而不用指示电极进行测定。由于测定方法不同才使它具有光纤化学传感器的特殊优点。
Gas sensing electrodes built on a gas-liquid two-phase equilibrium have been well known. In recent years, the gas-liquid two-phase optical fiber chemical sensor has been studied. One of the authors has reported CO 2 fluorescence sensors. In this paper, based on the literature on dye absorption fiber SO_2 sensor for a discussion. Fiber SO_2 sensor in its structure and gas sensing electrode similar, the difference is the use of sensing film characteristics of optical signals without the use of indicators to determine the electrode. Due to the different measurement methods it has the special advantages of optical fiber chemical sensors.