基于AD5933的声呐换能器动态特性检测系统设计
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摘要
针对目前舰艇声呐维修检测中无法进行换能器动态参数测量的问题,设计了一种声呐换能器动态参数检测设备。设备以STM32F103作为主控,通过测试换能器不同小信号频率点上的频率响应,利用AD5933阻抗分析芯片解算换能器的电导、电纳特性曲线。根据得到的导纳特性曲线,设计了动态参数解算算法程序,实现了在不拟合导纳圆的情况下解算动态参数。实际使用结果表明,该设备携带方便、测试简单,能够自动完成换能器动态参数的测量,测量精度可以满足随舰测量指标要求。
To conduct measurement of dynamic parameters of a shipboard sonar transducer in maintenance, a device for measuring dynamic parameters of the sonar transducer was developed. STM32F103 was taken as the master control module, and AD5933 impedance analysis chip was adopted to calculate the conductance and admittance of the transducer on the basis of the measured frequency responses of small signals with different frequencies. According to the admittance characteristic curve, an algorithm for calculating the dynamic parameters was proposed and programmed, thus the parameters could be calculated rapidly and accurately without admittance circle fitting. Practical application has shown that this device is portable and is easy in application, and it measures dynamic parameters of sonar transducer automatically with satisfactory accuracy.
To conduct measurement of dynamic parameters of a shipboard sonar transducer in maintenance, a device for measuring dynamic parameters of the sonar transducer was developed. STM32F103 was taken as the master control module, and AD5933 impedance analysis chip was adopted to calculate the conductance and admittance of the transducer on the basis of the measured frequency responses of small signals with different frequencies. According to the admittance characteristic curve, an algorithm for calculating the dynamic parameters was proposed and programmed, thus the parameters could be calculated rapidly and accurately without admittance circle fitting. Practical application has shown that this device is portable and is easy in application, and it measures dynamic parameters of sonar transducer automatically with satisfactory accuracy.
引文
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[11]刘元朋,张定华,桂元坤,等.用带约束的最小二乘法拟合平面圆曲线[J].计算机辅助设计与图形学学报,2004,16(10):1382-1385.Liu Yuan-peng,Zhang Ding-hua,Gui Yuan-kun,et al.Fitting Planar Circles with Constrained Least Squares[J].Journal of Computer-aided Design&Computer Graphics,2004,16(10):1382-1385.
[12]刘晓莉,陈春梅.基于最小二乘原理的分段曲线拟合[J].伊犁教育学院学报,2004,17(3):133-137.Liu Xiao-li,Chen Chun-mei.The Piecewise Curve-fitting Method Based on Least-square Principle[J].Journal of Education College,2004,17(3):133-137.
[13]左全生.压电换能器的导纳分析及其应用[J].常州工学院学报,2000,13(2):37-42.Zuo Quan-sheng.Admittance Analysis and the Applications of the Piezoelectric Transducer[J].Journal of Changzhou Institute of Technology,2000,13(2):37-42.
[2]郑士杰,袁文俊,缪荣兴,等.水声计量测试技术[M].哈尔滨:哈尔滨工程大学出版社,1995:120-125.
[3]翁洁知,惠晶.动态匹配超声波换能器谐振电感的方法与实现[J].电力电子技术,2007,41(12):96-97,108,120.Weng Jie-zhi,Hui Jing.Method and Realization for Dynamic a Resonant Inductance of Ultrasonic Transducer[J].Power Electronics,2007,41(12):96-97,108,120.
[4]张建兰,高天斌,曾娟.发射换能器自适应瞬态抑制方法[J].声学技术,2008,27(4):6-9.Zhang Jian-lan,Gao Tian-bin,Zeng Juan.Adaptive Transient Suppression for Emission Transducer[J].Technical Acoustics,2008,27(4):6-9.
[5]李祖胜,李艺,赵明.一种新的压电换能器谐振频率的检测和匹配[J].苏州大学学报(工科版),2011,31(2):48-51.Li Zu-sheng,Li Yi,Zhao Ming.A Novel Method for Detecting and Matching the Resonant Frequency of Piezoelectric Transducer[J].Journal of Soochow University(Engineering Science Edition),2011,31(2):48-51.
[6]郭雯,袁金库,沈建国.一种高精度压电换能器导纳仪的研究[J].压电与声光,2012,34(6):886-889.Guo Wen,Yuan Jin-ku,Shen Jian-guo.Study on an Admittance Circle Measuring Instrument for High-accuracy Piezoelectric Transducer[J].Piezoelectric&Acoustooptics,2012,34(6):886-889.
[7]郝虎在,田玉明,黄平.电子陶瓷材料物理[M].北京:中国铁道出版社,2002:42-49.
[8]栾桂东,张金铎,王仁乾.压电换能器和换能器阵[M].北京:北京大学出版社,2005:280-284.
[9]沈建良,贾玉坤,周芬芬,等.STM32F10X系列ARM微控制器入门与提高[M].北京:北京航空航天大学出版社,2013:1-8.
[10]徐国旺,廖明潮.拟合圆的几种方法[J].武汉工业学院学报,2002(4):104-106.Xu Guo-wang,Liao Ming-chao.Several Methods of Fitting Circle[J].Journal of Wuhan Polytechnic University,2002(4):104-106.
[11]刘元朋,张定华,桂元坤,等.用带约束的最小二乘法拟合平面圆曲线[J].计算机辅助设计与图形学学报,2004,16(10):1382-1385.Liu Yuan-peng,Zhang Ding-hua,Gui Yuan-kun,et al.Fitting Planar Circles with Constrained Least Squares[J].Journal of Computer-aided Design&Computer Graphics,2004,16(10):1382-1385.
[12]刘晓莉,陈春梅.基于最小二乘原理的分段曲线拟合[J].伊犁教育学院学报,2004,17(3):133-137.Liu Xiao-li,Chen Chun-mei.The Piecewise Curve-fitting Method Based on Least-square Principle[J].Journal of Education College,2004,17(3):133-137.
[13]左全生.压电换能器的导纳分析及其应用[J].常州工学院学报,2000,13(2):37-42.Zuo Quan-sheng.Admittance Analysis and the Applications of the Piezoelectric Transducer[J].Journal of Changzhou Institute of Technology,2000,13(2):37-42.