Temperature Compensation for Fiber-Optic Oxygen Sensors

• Main Authors: Yuan-Che Chang, 張元哲
• Other Authors: Yu-Lung Lo
• Format: Others
• Language: en_US
• Published: 2006
• Online Access: http://ndltd.ncl.edu.tw/handle/90355088685652411987

碩士 === 國立成功大學 === 機械工程學系碩博士班 === 94 === 　　In recent years, the oxygen sensors have been applied in various areas, such as national defense industry, environment monitor, etc. In all of the various types of oxygen sensors, the fiber-optic sensor on optical type is more interesting. The advantages of the fiber-optic sensor are noninvasive, no consume oxygen or participated in any chemical reactions, small size, high sensitivity, high response time, long-term using in abominable environment. Because of the large-scale application, the ideal oxygen sensors have to be applied in the various temperatures usefully. 　　In this study, an indicator, Pt(Ⅱ) meso-Tetra (Pentrafluoropheny) Porphine, was trapped in the porous film synthesized by sol-gel processes. The porous xerogels were coated on the end of an optical fiber for sensing. We calibrate the oxygen sensor at various temperatures and build an alternative method for compensating the temperature dependence oxygen sensor. The temperature compensation method varied with temperature, so that, we need no to know the temperature as measuring and apply the sensor at various environment.