| 红外气体传感器中光源恒功率控制电路的设计 |
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| 引用本文： | 杨帮华,丁丽娜,张永怀.红外气体传感器中光源恒功率控制电路的设计[J].传感器与微系统,2012,31(5). |
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| 作者姓名： | 杨帮华 丁丽娜 张永怀 |
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| 作者单位： | 1. 上海大学机电工程与自动化学院自动化系上海市电站自动化技术重点实验室,上海,200072
2. 中国科学院上海微系统与信息技术研究所,上海,200233 |
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| 基金项目： | 上海市教育委员会创新计划资助项目(11YZ19) |
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| 摘 要： | 为了提高红外气体传感器中光源输出功率的稳定性,设计了一种恒功率控制电路。该电路运用功率监视器,通过三极管和运算放大器的反馈调节,保持光源输出功率恒定。实验结果表明:该电路弥补了光源损耗和光源器件的分散性,使红外气体传感器产品的可靠性和一致性得到提高。
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| 关 键 词： | 红外气体传感器 红外光源 恒功率 |
Design of constant power control circuit for source of infrared gas sensor |
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| YANG Bang-hua
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DINGLi-na
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ZHANG Yong-huai.Design of constant power control circuit for source of infrared gas sensor[J].Transducer and Microsystem Technology,2012,31(5). |
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| Authors: | YANG Bang-hua DINGLi-na ZHANG Yong-huai |
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| Affiliation: | 1.Key Laboratory of Power Station Automation Technology,Department of Automation, School of Mechatronics Engineering and Automation,Shanghai University,Shanghai 200072,China; 2.Shanghai Institute of Microsystem and Information Technology,Chinese Academy of Sciences, Shanghai 200233,China) |
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| Abstract: | A constant power control circuit is designed in order to improve the stability of the output power of the infrared source in infrared gas sensor.The output power of infrared source is adjusted by the triode and the operational amplifier to maintain a constant output power.The experimental results show that the circuit can make up the loss of the infrared source and the dispersion of the infrared source devices,and consequently the reliability and consistency of the infrared gas sensor products are improved. |
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| Keywords: | infrared gas sensor infrared source constant power |
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