| 磁致伸缩无损检测传感器用大电流功率放大器的设计 |
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| 引用本文： | 金纪东,武新军,康宜华.磁致伸缩无损检测传感器用大电流功率放大器的设计[J].无损检测,2003,25(7):340-342,368. |
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| 作者姓名： | 金纪东 武新军 康宜华 |
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| 作者单位： | 华中科技大学,机械学院,武汉,430074 |
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| 基金项目： | 中国博士后科学基金资助项目 |
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| 摘 要： | 使用合适的功率放大器驱动激励线圈，是实现基于磁致伸缩效应无损检测技术的关键环节。设计了一种开关模式功率放大器，采用复合管电路作输出级，并正确设置工作点，同时满足了工作频率、大输出电流以及高效率的技术要求。
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| 关 键 词： | 功率放大器 无损检测 传感器 磁致伸缩 铁磁材料 设计 |
| 文章编号： | 1000-6656(2003)07-0340-03 |
DESIGN OF A POWER AMPLIFIER WITH LARGE OUTPUT CURRENT FOR MAGNETOSTRICTIVE NONDESTRUCTIVE TESTING SENSOR |
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| JIN Ji-dong,WU Xin-jun,KANG Yi-hua.DESIGN OF A POWER AMPLIFIER WITH LARGE OUTPUT CURRENT FOR MAGNETOSTRICTIVE NONDESTRUCTIVE TESTING SENSOR[J].Nondestructive Testing,2003,25(7):340-342,368. |
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| Authors: | JIN Ji-dong WU Xin-jun KANG Yi-hua |
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| Abstract: | It is important to apply a suitable power amplifier to drive the transmitting coil in magnetostrictive nondestructive testing (NDT). An on-off mode power amplifier with a compound tube circuit as output unit has been designed. With proper parameters, the power amplifier will satisfy the working frequency, large output current and high efficiency needed. |
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| Keywords: | Magnetostrictive effect Power amplifier Transducer |
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