| 基于MWCNTs/Nafion复合膜的高性能声表面波湿敏传感器研究 |
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| 引用本文： | 雷声,陈大竞,陈裕泉,潘敏.基于MWCNTs/Nafion复合膜的高性能声表面波湿敏传感器研究[J].传感技术学报,2011,24(6):813-817. |
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| 作者姓名： | 雷声 陈大竞 陈裕泉 潘敏 |
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| 作者单位： | 浙江大学生物传感器国家专业实验室，生物医学工程系，杭州310027 |
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| 基金项目： | 国家863项目(2006AA10Z215)；浙江大学校长基金 |
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| 摘 要： | 湿度检测广泛应用于工业、医疗等各个领域，对高性能湿度传感器的需求日趋迫切。首先对声表面波传感器敏感机理进行了深入的分析，得到影响其性能的主要因素。在此基础上研制出一种以多壁碳纳米管(MWCNTs)和Nafion复合材料为湿敏膜，高频声表面波谐振器为换能元件的高性能湿敏传感器。实验表明，制得的湿敏传感器在宽湿度范围内(1...
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| 关 键 词： | 湿敏传感器 声表面波 复合材料 碳纳米管 |
An Excellent Humidity Sensor Made of Surface Acoustic Wave Resonator Coated with MWCNTs/Nafion Composite Material Films |
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| LEI Sheng,CHEN Dajing,CHEN Yuquan,PAN Min.An Excellent Humidity Sensor Made of Surface Acoustic Wave Resonator Coated with MWCNTs/Nafion Composite Material Films[J].Journal of Transduction Technology,2011,24(6):813-817. |
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| Authors: | LEI Sheng CHEN Dajing CHEN Yuquan PAN Min |
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| Abstract: | Humidity detection has been widely used in variety of fields. The demand for various humidity sensors with excellent performance is becoming more and more urgent. A penetrating research was done to analyze the sensitive mechanism of the surface acoustic wave (SAW) sensor and to find its key influence factors. Based on the research conclusion, a novel humidity sensor with excellent performance was made of surface acoustic wave resonator (SAWR) coated with multi-walled carbon nanotubes/Na?on (MWCNTs/Na?on) composite material as humidity sensing ?lms. The present sensor showed quite a high sensitivity above 300 kHz/%RH in the range from 10%RH to 80%RH. At the same time, both linearity and response time of the sensor were also improved. The different effect of MWCNTs and Nafion in the composite film was discussed based on the experiment result. |
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| Keywords: | humidity sensor surface acoustic wave (SAW) Composite material CNTs |
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