| 基于锁相环的振弦式传感器测频设计 |
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| 引用本文： | 蒙永务.基于锁相环的振弦式传感器测频设计[J].大众科技,2013(8):8-9,7. |
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| 作者姓名： | 蒙永务 |
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| 作者单位： | 水利部珠江水利委员会西江局，广西 南宁 530007; 广西珠委南宁勘测设计院，广西 南宁 530007 |
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| 摘 要： | 研究振弦式传感器频率测量问题。针对振弦式传感器输出信号微弱、容易受到干扰而造成的测量精度下降问题，提出了一种基于锁相环的新型测频电路，论证了锁相环在电路中在抑制噪声以及提高测频精度的有效作用。锁相环技术用于振弦式传感器测频系统中具有良好的稳态精度和较高的动态性能。
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| 关 键 词： | 振弦式传感器 锁相环 CD4046 |
Design of vibrating wire sensor measurement system based on PLL |
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| Abstract: | Study of the vibrating wire sensor frequency measurement problems. A new circuit base on PLL is presented in order to overcome the decline of measurement accuracy, which caused by the weak signal and noise. PLL is an effective role in suppressing noise and improving the accuracy of frequency measurement. Phase-locked loop technology for vibrating wire sensor frequency has good steady precision and high dynamic performance. |
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| Keywords: | Vibrating wire transducer phase-locked loop CD4046 |
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