摘要: |
提出了一种基于TMS320LF2407ADSP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2407ADSP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。 |
关键词: 航空发动机 转速测量 智能传感器 数字信号处理 |
DOI: |
分类号:V232 |
基金项目:航空科学基金资助(03C52020)。 |
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A speed sensor design based on DSP for aeroengines |
XU Ke, HUANG Jin-quan, ZHANG Tian-hong, JIANG Wen-liang
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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. |
Key words: Aircraft engine Rotating speed measurement Intelligent sensor Digital signal processing |