| 基于数字鉴频器的内燃机瞬时转速延时测量法 |
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| 引用本文： | 孙云岭,张永祥,郭文勇. 基于数字鉴频器的内燃机瞬时转速延时测量法[J]. 海军工程大学学报, 2006, 18(6): 61-64 |
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| 作者姓名： | 孙云岭 张永祥 郭文勇 |
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| 作者单位： | 海军工程大学,船舶与动力学院,湖北,武汉,430033 |
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| 摘 要： | 将基于数字鉴频器的延时法用于内燃机瞬时转速测量.首先介绍了延时法解调电路原理,然后使用仿真手段对延时法测量的特点进行了研究.仿真结果表明,该方法能够较好地还原频率调制信号,最后经实测试验证明了测量的有效性.该方法可采用全硬件电路实现,测量设备简单,可抑制调幅因素的影响,是一种有效的瞬时转速测试方法.
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| 关 键 词： | 瞬时转速 延时法 内燃机 数字鉴频 |
| 文章编号： | 1009-3486(2006)06-0061-04 |
| 修稿时间： | 2006-05-28 |
Measurement method of transient rotating speed based on digital frequency discriminator |
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| SUN Yun-ling,ZHANG Yong-xiang,GUO Wen-yong. Measurement method of transient rotating speed based on digital frequency discriminator[J]. Journal of Naval University of Engineering, 2006, 18(6): 61-64 |
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| Authors: | SUN Yun-ling ZHANG Yong-xiang GUO Wen-yong |
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| Abstract: | The delay-line method based on digital frequency discriminator is used in mea-(suring ICE) instantaneous rotating speed.Firstly,the principle of delay-line demodulation circuit was introduced.Secondly,its characteristics were studied by means of simulation,whose result shows that the method can well revert the frequency modulated signals.Finally,the actual measurement proves its effectiveness.By means of hardware circuit,the effective method can control the influence of amplitude modulation with simple measuring equipment. |
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| Keywords: | transient rotating speed delay-line method ICE digital frequency discriminator |
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