| 一种适用于高压气体管道的次声传感器 |
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| 引用本文： | 郑国锋,任新敏,冯浩楠,崔丽娟.一种适用于高压气体管道的次声传感器[J].现代电子技术,2012,35(22):119-121. |
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| 作者姓名： | 郑国锋 任新敏 冯浩楠 崔丽娟 |
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| 作者单位： | 1. 中国海洋大学 信息科学与工程学院,山东 青岛,266100
2. 中国科学院 声学研究所 噪声与振动重点实验室,北京,100190 |
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| 摘 要： | 在此，介绍了一种宽频带的次声传感器，该型气体型次声传感器有如下特点：频带宽，从0．5-300Hz的范围，覆盖了几乎次声频带的全部和部分可听声频段；频响较好，在设计频段内的曲线平直；输出电压大，可达400mV／Pa，与A／D转换设备一起使用可方便地实现数据的采集；高灵敏度，可接收下限达0．05Pa的声压；通过调节电路中的信号耦合部分的可调电阻，可达到较高的一致性；采用隔舱密封和浸漆设计，从而达到零漂小，能长期有效地工作；所用换能元件的质量较小，振动灵敏度趋近于零，对振动不敏感；通过在管道上布设阵列，使用特定的算法可有效检测气体管道上的泄漏发生。
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| 关 键 词： | 宽频带 气体型次声传感器 气体管道 振动灵敏度 |
Wide-band infrasound sensor applied to high-pressure gas pipeline |
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| ZHENG Guo-feng
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REN Xin-min
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FENG Hao-nan
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CUI Li-juan.Wide-band infrasound sensor applied to high-pressure gas pipeline[J].Modern Electronic Technique,2012,35(22):119-121. |
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| Authors: | ZHENG Guo-feng REN Xin-min FENG Hao-nan CUI Li-juan |
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| Affiliation: | 1.Department of Electronics Engineering,Ocean University of China,Qingdao 266100,China; 2.The Key Laboratory of Noise and Vibration,Institute of Acoustics,Chinese Academy of Sciences,Beijing 100190,China) |
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| Abstract: | The gas-type infrasound sensor has the features of wide band （from 0.5 -300 Hz）, perfect frequency response, high output voltage （400 mV/Pa）, high sensitivity （0.05 Pa）. By adjusting the adjustable resistor in the signal coupled uhit of the circuit, the sensor can achieve high consistency. The zero drift can be realized with enclosed cabin and impregnating varnish. The energy conversion device is small. It is insensitive to vibration with its accelerator sensitivity close to zero. By laying an array on the gas pipeline and using a particular algorithm, the sensors can detect any leakage. |
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| Keywords: | wide band gas infrasound sensor gas plpeline vibration sensitivity |
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