| 基于虚拟仪器的超声换能器阻抗分析仪设计 |
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| 引用本文： | 陆飞,郭建中.基于虚拟仪器的超声换能器阻抗分析仪设计[J].压电与声光,2011,33(3). |
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| 作者姓名： | 陆飞 郭建中 |
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| 作者单位： | 1. 陕西师范大学应用声学研究所,陕西西安710062;广东理工职业学院工程技术系,广东广州510091
2. 陕西师范大学应用声学研究所,陕西西安,710062 |
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| 基金项目： | 国家自然科学基金资助项目，陕西省自然科学基金资助项目 |
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| 摘 要： | 利用常规的信号发生器、数字示波器等测量仪器,结合计算机控制原理,从导纳圆图法测量换能器阻抗特性参数的原理出发,基于虚拟仪器的设计方法,通过计算机控制信号发生器产生换能器的激励信号,经信号调理电路处理,数字示波器采集换能器工作时的电压及电流,分析换能器的电流和电压信号及其相位差,求出阻抗特性参数.多组实验数据显示,设计的系统基本上达到了商用仪器的测量精度,能测量换能器主要特性参数,开发成本低,拓展了超声换能器性能参数的测量方法.
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| 关 键 词： | 虚拟仪器 换能器 阻抗分析 |
A Design of Ultrasonic Transducer Impedance Analyzer Based on Virtual Instrument |
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| LU Fei,GUO Jianzhong.A Design of Ultrasonic Transducer Impedance Analyzer Based on Virtual Instrument[J].Piezoelectrics & Acoustooptics,2011,33(3). |
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| Authors: | LU Fei GUO Jianzhong |
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| Affiliation: | LU Fei1,2,GUO Jianzhong1 (1.Applied Acoustics Institute,Shaanxi Normal University,Xi'an 710062,China,2.Dept.of Engineering Technology,Guangdong Polytechnic Institute,Guangzhou 510091,China) |
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| Abstract: | Utilizing the conventional signal generator,digital oscilloscope and other measuring instruments,combining with the computer control theory,using the theory of admittance circle diagram to measure the transducer impedance parameters,and based on the design method of the virtual instrument,we can get the impulse signal through the signal generator,which is controlled by computer.After being processed by the signal conditioning circuitry,the digital oscilloscope gathers the voltage and current during the tran... |
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| Keywords: | virtual instrument ultrasonic transducer impedance analyzer |
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