...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>IEEE sensors journal >Fast Spectral Impedance Measurement Method Using a Structured Random Excitation
【24h】

Fast Spectral Impedance Measurement Method Using a Structured Random Excitation

机译：

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

The need for fast impedance measurement methods and instruments is necessary for accurate on-line characterization of many bio(electro)chemical systems in which most of the important processes occurs at low frequencies. However, the measurement by means of the traditional single-sine sweep signal is known to be a time consuming task particularly at ultra-low frequencies. In this work, we demonstrate the synthesis of a structured signal generated from a Gaussian white noise time series such that its power spectral magnitude is relatively flat over a wide bandwidth while maintaining a random phase. Such a signal allows the simultaneous measurement for multiple frequencies at once. When used to characterize a precision standard cell, the average deviation of the cell's spectral impedance from that measured using single-sine sweep on a research-grade BioLogic VSP-300 electrochemical station was about 1.03 over the frequency range 2 mHz to 200 kHz. Concurrently, the measurement time was reduced by a factor of 6.08 times compared to the reference instrument. The proposed methodology and processing can be readily adapted to other types of noises for fast impedance measurement.

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号