| 鲍善惠.用锁相环电路跟踪压电换能器并联谐振频率区[J].,2001,20(3):1-5 |
| 用锁相环电路跟踪压电换能器并联谐振频率区 |
| Tracking the fp region of the piezoelectric transducer by the phase-locked loop circuit |
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| 中文摘要: |
| 本文在介绍用 ＰＬＬ（Ｐｈａｓｅ－Ｌｏｃｋｅｄ Ｌｏｏｐ锁相环）电路进行频率跟踪的原理和实质的基础上，给出一种能够跟踪压电换能器并联谐振频率ｆｐ区间的具体电路，并通过实验研究了匹配电感和负载等对电路跟踪性能的影响．结果表明，这个电路具有很好的频率跟踪和功率自动调节性能． |
| 英文摘要: |
| Based on a discussion on the principle and essentiality of piezoelectric transducer’s frequency tracking by the PLL circuit, a practical circuit for tracking the fp region is given. The effect of matching inductor and load on the circuit’s tracking ca- pability was studied through experiment. The result shows that this circuit has a good performance in both frequency tracking and automatic power adjusting. |
| DOI：10.11684/j.issn.1000-310X.2001.03.001 |
| 中文关键词: 压电换能器 并联谐振频率 频率跟踪 锁相环 |
| 英文关键词: Piezoelectric transducer Parallel resonant frequency frequency tracking Phase-locked loop |
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