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用于电磁声发射的脉冲激励源设计 被引量:1
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作者 张闯 李乘风 +2 位作者 刘素贞 肖洋 杨庆新 《电工技术学报》 EI CSCD 北大核心 2017年第A01期203-208,共6页
对金属结构进行电磁加载,会在裂纹处产生应力波信号,利用该现象可以实现对金属缺陷的无损检测,即电磁声发射技术。脉冲激励源作为电磁加载的核心,其输出电流的频率、幅值等参数对加载效果有显著影响。针对电磁加载实验中对激励源的要求... 对金属结构进行电磁加载,会在裂纹处产生应力波信号,利用该现象可以实现对金属缺陷的无损检测,即电磁声发射技术。脉冲激励源作为电磁加载的核心,其输出电流的频率、幅值等参数对加载效果有显著影响。针对电磁加载实验中对激励源的要求,设计基于半桥型开关电路原理的可调稳压电源、以电容器作为储能元件的充放电回路,并利用单片机实现对电容充放电过程的调控,以产生频率和幅值可调的脉冲电流。将激励源应用于电磁加载实验,输出结果达到了设计要求。 展开更多
关键词 电磁加载 脉冲激励 可调稳压源 充放电回路
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The Design and Simulation Analysis of Adjustable DC Source Circuit based on AD 13 Software
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作者 Qiang CHEN 《International Journal of Technology Management》 2015年第2期90-92,共3页
DC regulated power has play a decisive role status in the modem enterprise production and family life. With the development of science and technology, all kinds of computer simulation technology is increasingly rising... DC regulated power has play a decisive role status in the modem enterprise production and family life. With the development of science and technology, all kinds of computer simulation technology is increasingly rising, the paper simulate and compare common DC regulated power with adjustable DC regulated power by Altium Designer software, intuitively demonstrates the stabilizing effect of the circuit, and introduces the characteristics of adjustable DC regulated power. Using AD13 software simulate and design DC stabilized power supply circuit, calculated the main parameters of the circuit, simulated and analyzed the circuit working simulation process and the working state of the circuit, it can visually verify the results of the theoretical analysis, and get relevant conclusions. 展开更多
关键词 DC regulated power SIMULATION Altium Designer SIMULATION
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