聚偏氟乙烯压电薄膜换能器前置放大模块设计

管 玲; 王 旭

doi:10.11993/j.issn.1673-1948.2015.05.006

聚偏氟乙烯压电薄膜换能器前置放大模块设计

doi: 10.11993/j.issn.1673-1948.2015.05.006

管玲,
王旭

中国船舶重工集团公司第705研究所, 陕西西安, 710075

详细信息

作者简介:
管玲(1968-), 女, 高级工程师, 主要研究方向为应用电子技术.

中图分类号: TJ630.34; TB564
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出版历程
- 刊出日期: 2015-12-20

Design of Preamplifier Module for Piezoelectric Thin Film Transducer in Polyvinylidence Fluoride

GUAN Ling,
WANG Xu

The 705 Research Institute, China Shipbuilding Industry Corporation, Xi′an 710075, China

摘要

摘要: 基于前置放大模块的噪声特性直接影响聚偏氟乙烯(PVDF)压电薄膜换能器的接收性能, 根据PVDF压电薄膜换能器的特点, 采用模拟信号处理中抑制噪声的关键技术, 实现与之配套的前置放大模块的设计, 总结了前置放大模块的设计要素, 利用Multisim 12对设计电路进行仿真, 并对该模块进行了实验室测试。试验结果表明, 该模块输入噪声不大于–130, 可满足水声信号处理设备的使用需求。
- 聚偏氟乙烯压电薄膜 /
- 换能器 /
- 前置放大模块 /
- 水声信号处理
Abstract: The noise properties of a preamplifier module directly influence the receptivity of a piezoelectric thin film transducer of polyvinylidence fluoride(PVDF). According to the characteristics of the PVDF piezoelectric film transducer, this paper designs a preamplifier module to match the transducer. Interferences and noises are eliminated by the anti-interfere technology applied for analog signal processing. The design factors of the preamplifier module are considered. The design module is simulated via the software Multisim12 and tested in laboratory. The results show that the input noise of this module is lower than –130, which infers that the designed preamplifier module meets the requirement of underwater acoustic signal processing equipment.
- polyvinylidence fluoride(PVDF) piezoelectric thin film /
- transducer /
- preamplifier module /
- underwater acoustic signal processing

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参考文献(6)

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