| 水用检波器快速测试仪的设计与实现 |
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| 引用本文： | 李淑清,刘兴华,李建良. 水用检波器快速测试仪的设计与实现[J]. 天津科技大学学报, 2012, 0(2): 53-56 |
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| 作者姓名： | 李淑清 刘兴华 李建良 |
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| 作者单位： | 天津科技大学电子信息与自动化学院,天津 300222 |
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| 基金项目： | 天津市高等学校科技发展基金资助项目(20060622) |
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| 摘 要： | 为检测水用检波器在固定频率的灵敏度,以便快速准确地确定检波器的好坏,设计了水用检波器快速测试仪.测试仪主要由信号源模块、功率放大模块、数据采集模块和显示模块等部分组成,以 ATmega128为主控芯片,利用A/D 转换芯片 AD7663进行数据采集,将检波器的灵敏度实时地显示在液晶屏上,以便观察.测试结果表明,快速测试仪的最大偏差为0.5,μV/Pa,测试结果与标称值的平均相对误差为0.93%.可见,快速测试仪的测试结果准确,且重复性较好.
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| 关 键 词： | 快速测试仪 水用检波器 灵敏度 |
Design and Implementation of Hydrophone Quick Tester |
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| LI Shuqing,LIU Xinghua,LI Jianliang. Design and Implementation of Hydrophone Quick Tester[J]. Journal of Tianjin University of Science & Technology, 2012, 0(2): 53-56 |
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| Authors: | LI Shuqing LIU Xinghua LI Jianliang |
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| Affiliation: | (College of Electronic Information and Automation,Tianjin University of Science & Technology,Tianjin 300222,China) |
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| Abstract: | A hydrophone quick tester was designed to detect the sensitivity of hydrophone at a certain frequency so as to ascertain its performance quickly.The quick tester mainly consists of a signal source module,a power amplifier module,a data acquisition module and a display module.ATmega128 was used as the main control chip of the quick tester,A/D converter chip AD7663 was used to design the data capture circuit,and the sensitivity can be displayed on the LCD real-time,so it is easy to observe.Test results show that the maximum deviation is 0.5,μV/Pa,and the average relative error of the test results against the nominal value is 0.93%.The testing result is accurate and repeatable. |
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| Keywords: | quick tester hydrophone sensitivity |
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