| 用于硬币鉴伪的固频涡流传感方法 |
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| 引用本文： | 武斌,龙在云,张一哲.用于硬币鉴伪的固频涡流传感方法[J].无损检测,2008,30(8). |
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| 作者姓名： | 武斌 龙在云 张一哲 |
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| 作者单位： | 河北建筑工程学院,张家口,075024 |
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| 基金项目： | 河北省建设厅科技计划，张家口市科技计划 |
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| 摘 要： | 在对常见的一元假硬币特性参数的测量、研究基础上,总结了真伪币电特性上的区别。提出了采用固频偏谐振电涡流传感器进行幅度测量的方法。实现了硬币真伪的快速无损鉴别,获得较高的识别率。基于这种方法的电路设计成本低、识别率高、可应用于商业领域。
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| 关 键 词： | 涡流检测 硬币鉴伪 固定频率 偏振 涡流传感器 |
Research of Fixed-Frequency Eddy Current Sense Method for False Coin Discrimination |
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| WU Bin,LONG Zai-Yun,ZHANG Yi-Zhe.Research of Fixed-Frequency Eddy Current Sense Method for False Coin Discrimination[J].Nondestructive Testing,2008,30(8). |
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| Authors: | WU Bin LONG Zai-Yun ZHANG Yi-Zhe |
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| Affiliation: | WU Bin; LONG Zai-Yun; ZHANG Yi-Zhe(HeBei Institute of Architecture and Engineering; Zhangjiakou 075024; China); |
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| Abstract: | In order to remove fake coin real time and get rid of trouble of false coin, based on the measurement and research of characteristic parameter of usual one-yuan false coin, the paper sums up the differences of electrical characteristic parameter of real and false coin, presents a new rapid, lossless technique to discriminate false coin. Proposed method applies fixed frequency and partial resonance eddy-current sensor to measure voltage amplitude and has high discrimination ratio. Circuit design based on the... |
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| Keywords: | Eddy current testing False coin discrimination Fixed frequency Partial resonance Eddy current sensor |
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