电子器件2025，Vol.48Issue(1)：38-42,5.DOI:10.3969/j.issn.1005-9490.2025.01.007
基于压电传感器方向特性的超声阵列研究
Research on Ultrasonic Array Based on Directional Characteristics of Piezoelectric Sensors
摘要
Abstract
Ultrasonic sensor phased array is commonly used for monitoring and locating partial discharge.However,due to the large number of sensors and the constraints of wavelength and sensor size relationship,its application in air is limited.The directionality of ul-trasonic sensor array is studied based on piezoelectric sensors.Firstly,the approximate expression of sensor directionality within a certain range is obtained by polynomial fitting.Secondly,several groups of piezoelectric ultrasonic sensors are arranged at different an-gles on a plane,and the direction of the signal source is calculated based on the signal amplitude detected by each sensor.The location of the signal source is realized by using the approximate expression of directionality,and the error and application range of the method are analyzed.Finally,the feasibility of the method is verified through experiments.The sensor array has a simple structure,it is of low sampling rate requirement and small calculation amount,which is suitable for locating ultrasonic signal sources in air,and provides a new design idea for ultrasonic array.关键词
压电传感器阵列/指向性/超声信号/定位Key words
piezoelectric sensor array/directivity/ultrasonic signal/positioning分类
信息技术与安全科学引用本文复制引用
周秀,田天,白金,罗艳,马奎,陈彪,于家英,张恒,尤鸿芃..基于压电传感器方向特性的超声阵列研究[J].电子器件,2025,48(1):38-42,5.基金项目
国网宁夏电力有限公司科技项目(5229DK22000L) （5229DK22000L）
