| 新型钢板地电流磁场测量仪的噪声分析 |
| |
| 引用本文： | 潘启军,马伟明,赵治华,孟进,张磊. 新型钢板地电流磁场测量仪的噪声分析[J]. 电工技术学报, 2006, 21(8): 63-68 |
| |
| 作者姓名： | 潘启军 马伟明 赵治华 孟进 张磊 |
| |
| 作者单位： | 海军工程大学电力电子技术研究所,武汉,430033;海军工程大学电力电子技术研究所,武汉,430033;海军工程大学电力电子技术研究所,武汉,430033;海军工程大学电力电子技术研究所,武汉,430033;海军工程大学电力电子技术研究所,武汉,430033 |
| |
| 基金项目： | 国家自然科学基金，高等学校优秀青年教师教学科研奖励计划，国防重点实验室基金 |
| |
| 摘 要： | 同时用一个电压源和一个电流源来模拟输入参考噪声,建立一种新型钢板地电流测量系统的噪声模型,计算出系统的输出噪声并通过实验进行了验证.在此基础上,从时域和频域两方面对整个系统的输入级噪声水平进行了评估,得到了各种放大倍数下钢板地电流的最小可测峰值,为提高系统分辨率和合理选择第一、二级的放大倍数提供了理论依据.本文的研究成果可用于其他类似系统的噪声分析,具有较重要的工程应用价值.
|
| 关 键 词： | 钢板地电流 磁场测量仪器 噪声模型 系统分辨率 |
| 修稿时间： | 2005-04-25 |
Noise Analysis of a Novel Apparatus for Ground Current Testing of Steel Plate |
| |
| Pan Qijun,Ma Weiming,Zhao Zhihua,Meng Jin,Zhang Lei. Noise Analysis of a Novel Apparatus for Ground Current Testing of Steel Plate[J]. Transactions of China Electrotechnical Society, 2006, 21(8): 63-68 |
| |
| Authors: | Pan Qijun Ma Weiming Zhao Zhihua Meng Jin Zhang Lei |
| |
| Affiliation: | Naval University of Engineering Wuhan 430033 China |
| |
| Abstract: | Simulating the input reference noise by both a voltage source and a current source simultaneously, the paper establishes the noise model of a novel apparatus for ground current testing of steel plate. Furthermore, the system output noise is calculated, which is verified by experiments. On basis of the above results, the noise level estimation of input stage has been fulfilled from time-domain and frequency-domain aspects. Finally, the minimum ground currents of steel plate are obtained, which provides theoretical guidance for improving system resolution and reasonable choice of the first-stage and second-stage gains. The achievements above can be applied in noise analysis in other similar systems. |
| |
| Keywords: | Ground current of steel plate measurement apparatus of magnetic field noise model system resolution |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
|
