Studies of the synchronous sensing method in the microfluidic cell impedance detection

被引：0

作者：

Dai, Jie ^{[1
]}

Lo, Yuhwa ^{[2
]}

Yang, Kecheng ^{[1
]}

机构：

[1] School of Optical and Electronic information, Huazhong University of Science and Technology, Wuhan 430074, China

[2] Department of Electrical and Computer Engineering, University of California at San Diego, La Jolla, CA, 92093-0407, United States

来源：

Sensors and Transducers | 2014年 / 162卷 / 01期

关键词：

Signal to noise ratio - Signal detection;

D O I：

暂无

中图分类号：

学科分类号：

摘要：

Microfluidic impedance sensors play a significant role in point-of-care applications, clinical tests and laboratory studies. Instead of the traditional signal process method with the envelope detector, filter banks and multistage amplifier, we have reported a new implement using synchronous sampling and orthogonal detecting. By studying the intensity and phase modulation in the cell impedance sensing progress, we have calculated the SNR of the new method compare with the raw data. Base on the physical model and the calculation, we have demonstrated a simulation result which shows a capability to detect the signal of 1um cell in a noisy environment. © 2014 IFSA Publishing, S. L.

引用

页码：42 / 46