Electrostatic-piezoelectric transducer专利检索-压电效应电磁学专利检索查询-专利查询网

Electrostatic-piezoelectric transducer

阅读：186发布：2022-03-06

专利汇可以提供Electrostatic-piezoelectric transducer专利检索，专利查询，专利分析的服务。并且An electrostatic type electroacoustic transducer having improved acoustic characteristics is composed of a piezoelectric polymertype oscillator having a stretching-type piezoelectric effect, such as a polarized polyvinylidene fluoride film having electrodes vacuum-coated on both surfaces and at least one fixed electrode disposed facing the oscillator and spaced therefrom.，下面是Electrostatic-piezoelectric transducer专利的具体信息内容。

权利要求

1. An electrostatic type electroacoustic transducer comprising: a. oscillator means fixed at two portions thereof and including a piezoelectric polymer sheet having stretching-type piezoelectric characteristics and electrodes on both surfaces of said polymer sheet; b. at least one fixed electrode means facing said oscillator means and spaced therefrom; and c. means for applying an alternating current electric input signal to both said oscillator and said electrode means, said oscillator means and said fixed electrode means being positioned such that, upon application of the input signal, the oscillating movement of said oscillator means is intensified by the combination of: the bowing of said oscillator means between the two fixed portions thereof, said bowing being caused by the piezoelectric effect of the piezoelectric polymer sheet; and the attractive and repulsive forces between said oscillator means and said fixed electrode means.

2. The electrostatic type electroacoustic transducer as claimed in claim 1 wherein said piezoelectric polymer sheet is a piezoelectric vinylidene fluoride resin sheet.

3. The electrostatic type electroacoustic transducer as claimed in claim 1 wherein said fixed electrode means comprises an electret having a conductor backing plate.

4. The electrostatic type electroacoustic transducer as claimed in claim 1 wherein said fixed electrode means comprises two fixed electrodes, one on each side of said oscillator means whereby said fixed electrode means exerts a push-pull effect on said oscillator means.

说明书全文

相关专利内容

标题	发布/更新时间	阅读量
基于声纹特征识别的聚乙烯气相流化床生产过程结块在线监测系统及方法	2020-05-11	512
可用于非满管排水管道的流量测量装置	2020-05-12	177
一种综合模式的压电发电单元及道路全断面同步发电装置	2020-05-11	480
一种压电驱动压电检测的解耦式微陀螺装置	2020-05-11	37
一种测氢气的磁电谐振传感器、测试装置及测试方法	2020-05-12	584
基于H形共振管提升光声光谱传感器性能的装置和方法	2020-05-11	102
一种多机理复合式宽频带振动俘能器	2020-05-12	101
一种压电催化多孔陶瓷材料、其制备方法与应用	2020-05-08	972
一种新型单晶体光弹调制器	2020-05-11	206
掺杂HfO2铁电栅的InAlNGaN HEMT器件	2020-05-11	481

高效检索全球专利

专利汇是专利免费检索,专利查询,专利分析-国家发明专利查询检索分析平台，是提供专利分析，专利查询，专利检索等数据服务功能的知识产权数据服务商。

我们的产品包含105个国家的1.26亿组数据，免费查、免费专利分析。

申请试用

分析报告

专利汇分析报告产品可以对行业情报数据进行梳理分析，涉及维度包括行业专利基本状况分析、地域分析、技术分析、发明人分析、申请人分析、专利权人分析、失效分析、核心专利分析、法律分析、研发重点分析、企业专利处境分析、技术处境分析、专利寿命分析、企业定位分析、引证分析等超过60个分析角度，系统通过AI智能系统对图表进行解读，只需1分钟，一键生成行业专利分析报告。

申请试用

压电效应热门专利

热门分类

Electrostatic-piezoelectric transducer

该功能需要专业版企业版VIP权限，您可以：