| 基于DSP的航空发动机转速传感器设计 |
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| 引用本文： | 徐科,黄金泉,张天宏,蒋文亮.基于DSP的航空发动机转速传感器设计[J].推进技术,2004,25(2):180-182,186. |
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| 作者姓名： | 徐科 黄金泉 张天宏 蒋文亮 |
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| 作者单位： | 南京航空航天大学,能源与动力学院,江苏,南京,210016 |
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| 基金项目： | 航空科学基金资助(03C52020)。 |
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| 摘 要： | 提出了一种基于TMS320 LF2407A DSP的航空发动机智能转速传感器。设计了转速信号处理电路、显示电路、数字信号处理(DSP)与控制器局域网(CAN)总线接口电路和电源电路。提出采用动态分频技术的转速测量方法，并分析了其在2407A DSP上的实现，提高了转速测量的精度。实验结果表明该智能转速传感器功能强大、实时性好、精度可达0．01％，可应用于航空发动机分布式控制系统中。
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| 关 键 词： | 航空发动机 转速测量 智能传感器 数字信号处理 |
| 文章编号： | 1001-4055(2004)02-0180-04 |
A speed sensor design based on DSP for aeroengines |
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| XU Ke,HUANG Jin-quan,ZHANG Tian-hong and JIANG Wen-liang.A speed sensor design based on DSP for aeroengines[J].Journal of Propulsion Technology,2004,25(2):180-182,186. |
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| Authors: | XU Ke HUANG Jin-quan ZHANG Tian-hong and JIANG Wen-liang |
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| Institution: | Coll. of Energy and Power Engineering Nanjing Univ. of Aeronautics and Astronautics, Nanjing 210016, China;Coll. of Energy and Power Engineering Nanjing Univ. of Aeronautics and Astronautics, Nanjing 210016, China;Coll. of Energy and Power Engineering Nanjing Univ. of Aeronautics and Astronautics, Nanjing 210016, China;Coll. of Energy and Power Engineering Nanjing Univ. of Aeronautics and Astronautics, Nanjing 210016, China |
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| Abstract: | A smart speed sensor based on DSP for aeroengines was proposed. The speed signal processing circuit, the driving LED circuit, and the interface circuit between DSP and CAN buses were designed. A new speed measurement method by dynamically dividing frequency of speed signal was proposed. The precision of speed measurement was improved. The experiment indicates that the real-time response of the smart speed sensor has satisfactory performance and the relative error of speed measurement is less than 0.01%. The smart speed sensor is suitable for aeroengine distribution control systems. |
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| Keywords: | Aircraft engine Rotating speed measurement Intelligent sensor Digital signal processing |
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