| 铁电材料测试系统用电压自动衰减电路 |
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| 引用本文： | 曾亦可,李秀峰,胡勇,肖腊连,林汝湛,张海波.铁电材料测试系统用电压自动衰减电路[J].仪表技术与传感器,2005(9):35-37. |
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| 作者姓名： | 曾亦可 李秀峰 胡勇 肖腊连 林汝湛 张海波 |
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| 作者单位： | 华中科技大学电子科学与技术系,湖北,武汉,430074 |
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| 基金项目： | 国家自然科学基金重大研究计划资助项目（90201028）;国家“八六三”计划新材料领域资助项目（2002AA325080）;先进制造与自动化技术领域资助项目（2003AA404150 |
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| 摘 要： | 针对铁电材料测试系统中不同测试信号电压的差别，设计了电压自动衰减电路。重点介绍了自动量程转换电路、峰值AC／DC转换电路、继电器驱动电路和衰减电路的设计。利用配有电压自动衰减电路的铁电材料测试系统测量了PZT铁电体材料样品的电滞回线。测量结果表明，该设计解决了测试电压与采集卡量程的匹配问题，实现了铁电材料测试的自动化。
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| 关 键 词： | 铁电材料 测量 数据采集 电滞回线 |
| 文章编号： | 1002-1841（2005）09-0035-03 |
| 收稿时间： | 2004-11-29 |
| 修稿时间： | 2005-05-21 |
Automatic Voltage-decaying Circuit Used in System for Measuring Ferroelectric Materials |
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| ZENG Yi-ke,LI Xiu-feng,HU Yong,XIAO La-lian,LIN Ru-zhan,ZHANG Hai-bo.Automatic Voltage-decaying Circuit Used in System for Measuring Ferroelectric Materials[J].Instrument Technique and Sensor,2005(9):35-37. |
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| Authors: | ZENG Yi-ke LI Xiu-feng HU Yong XIAO La-lian LIN Ru-zhan ZHANG Hai-bo |
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| Abstract: | In view of the different voltage used in system for measuring ferroelectric materials, the automatic voltage-decaying circuit was designed. It had been described in detail to design automatic range conversing circuit, peak value AC/DC switching circuit, driving relay circuit and evanescent voltage circuit. The PZT ferroelectric slice sample was measured by the system with the automatic voltage-decaying circuit, and hysteresis loops of the sample was exhibited. The results have shown that the automatic voltage-decaying circuit has entirely solved the problem that measuring range of acquisition card does not correspond to input voltage, as a consequence an automated measurement system has been achieved for measuring ferroelectric materials. |
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| Keywords: | Ferroelectric Materials Measurement Data Acquisition Hysteresis Loops |
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