| 用LED作光源的光纤乙炔气体传感器的研究 |
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| 引用本文： | 张操,罗荣辉,刘小玲,郭小伟,楚广勇. 用LED作光源的光纤乙炔气体传感器的研究[J]. 电子与封装, 2011, 11(3): 36-40 |
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| 作者姓名： | 张操 罗荣辉 刘小玲 郭小伟 楚广勇 |
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| 作者单位： | 郑州大学,郑州,450001 |
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| 摘 要： | 基于气体的近红外吸收机理,介绍了一种用LED作光源的光谱吸收型光纤乙炔气体传感器.该系统利用布拉格光纤光栅和压电陶瓷(PZT)的窄带滤波特性,对宽带光源LED进行波长调制,获得与乙炔气体吸收峰相对应的窄带反射出射光.利用谐波检测原理,获得探测器输出信号的二次谐波信号,以此二次谐波信号与光纤光栅透射光强的比值作为系统的输...
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| 关 键 词： | 近红外吸收 光纤光栅 压电陶瓷 谐波检测 |
Research on the Optic Fiber C_2H_2 Sensor Using LED as the Light Source |
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| ZHANG Cao,LUO Rong-hui,LIU Xiao-ling,GUO Xiao-wei,CHU Guang-yong. Research on the Optic Fiber C_2H_2 Sensor Using LED as the Light Source[J]. Electronics & Packaging, 2011, 11(3): 36-40 |
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| Authors: | ZHANG Cao LUO Rong-hui LIU Xiao-ling GUO Xiao-wei CHU Guang-yong |
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| Affiliation: | ZHANG Cao,LUO Rong-hui,LIU Xiao-ling,GUO Xiao-wei,CHU Guang-yong(Zhengzhou University,Zhengzhou 450001,China) |
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| Abstract: | Based on the near infrared spectral absorption of gases,a spectral absorption-tybe optic fiber sensor for acetylene using LED as the light source was demonstrated.A light emitting diode was used as the broadband source,the wavelength of the LED was modulated by the fiber bragg grating and piezoelectric ceramics(PZT)to obtain the narrowband reflection output light using their filtering characteristics.Basd on the principle of harmonic detection,the second harmonic signal of the dector was measured,the ratio ... |
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| Keywords: | infrared absorption fiber bragg grating piezoelectric ceramic harmonic measurement |
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