| 潘仲明,祝琴.压电换能器阻抗匹配技术研究[J].,2007,26(6):357-361 |
| 压电换能器阻抗匹配技术研究 |
| Study of impedance matching technology for piezoelectric transducer |
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| 中文摘要: |
| 超声测距传感器是由压电换能器及其收、发电路所组成的,其中压电换能器的阻抗特性直接影响着超声测距传感器的性能。为提高超声波回波信号的强度,扩大超声测距传感器的作用距离,对压电换能器的阻抗特性进行了分析与测试,设计了压电换能器的阻抗匹配电路,并进行了实验验证. |
| 英文摘要: |
| Ultrasonic range-finding sensors usually consist of piezoelectric transducers and transmitting/receiving circuits,and their performances are directly affected by the impedance characteristics of the piezoelectric transducers.For the purpose of getting stronger echoes and extending the effective range-finding distance,the impedance char- acteristics are analyzed and tested in this paper,and the impedance matching circuit is designed and its functions are testified experimentally. |
| DOI：10.11684/j.issn.1000-310X.2007.06.007 |
| 中文关键词: 压电换能器 阻抗匹配 超声测距 |
| 英文关键词: Piezoelectric transducer Impedance matching Ultrasonic range-finding |
| 基金项目: |
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