| 用于除垢的新型电磁场发生装置设计 |
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| 引用本文： | 蒋文斌,陈华德,李青,李雄. 用于除垢的新型电磁场发生装置设计[J]. 中国计量学院学报, 2011, 22(3): 263-267 |
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| 作者姓名： | 蒋文斌 陈华德 李青 李雄 |
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| 作者单位： | 1. 中国计量学院机电工程学院,浙江 杭州,310018
2. 浙江省计量科学研究院,浙江 杭州,310013 |
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| 摘 要： | 水垢现象普遍存在,而且危害巨大.鉴于此,设计一幅度调制电磁场发生装置.激励信号经由幅值调制后再加以功率放大而得到.将两路正弦信号通过MC1496乘法器,使载波信号的幅度随调制信号的规律变化.再将已调制后的信号通过D类功放芯片TDA8920BTH进行功率放大.最后得到的激励信号加载在磁芯线圈上得到一强度调制的交变电磁场.
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| 关 键 词： | 水垢 幅度调制 乘法器 D类功放 电磁场 |
Design of a new electromagnetic field generator for anti-scaling |
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| JIANG Wen-bin,CHEN Hua-de,LI Qing,LI Xiong. Design of a new electromagnetic field generator for anti-scaling[J]. Journal of China Jiliang University, 2011, 22(3): 263-267 |
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| Authors: | JIANG Wen-bin CHEN Hua-de LI Qing LI Xiong |
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| Affiliation: | JIANG Wen-bin1,CHEN Hua-de2,LI Qing1,LI Xiong1(1.College of Mechanical and Electrical Engineering,China Jiliang University,Hangzhou 310018,China,2.Zhejiang Province Institute of Metrology,Hangzhou 310013,China) |
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| Abstract: | Scaling is commonly and harm ful.So,an amplitude-modulating electromagnetic field generator was designed.The drive signal was obtained by amplitude modulation and power amplification.It made two sine signals through the MC1496 multiplier and the carrier's amplitude changes with the modulator's rule.Then,used D class amplifier TDA8920BTH to enlarge the power of modulated signal.At last,loading the drive signal on a ferrite of magnetic coil to gain an electromagnetic field whose strength is modulated. |
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| Keywords: | scaling amplitude modulation multiplier D class amplifier electromagnetic field |
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