FPGA-Based Lock-In Amplifier for Measuring the Electrical Properties of Individual Cells

被引：0

作者：

Divakar, Dipin ^{[1
]}

Mahesh, Karthik ^{[1
]}

Varma, Manoj M. ^{[1
]}

Sen, Prosenjit ^{[1
]}

机构：

[1] Indian Inst Sci, Ctr Nano Sci & Engn CeNSE, Bangalore, Karnataka, India

来源：

2018 13TH ANNUAL IEEE INTERNATIONAL CONFERENCE ON NANO/MICRO ENGINEERED AND MOLECULAR SYSTEMS (NEMS 2018) | 2018年

关键词：

D O I：

暂无

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

We report the design and validation of a low-cost and portable FPGA-based lock-in amplifier (LIA) for measuring the dielectric properties of cells through electrical impedance spectroscopy (EIS). The proposed design uses the phase sensitive measurement principle which detects the signal at a particular reference frequency and rejects the rest. By closely integrating the LIA with a custom-built instrumentation amplifier and a microfluidic device, we demonstrate the excellent ability of the system to suppress noise and detect impedance changes due to flowing red blood cells (RBCs).

引用

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页码：413 / 416

页数：4

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