Paper Title:
Biomaterial Impedance Analyzer Based on Digital Auto Balancing Bridge
  Abstract

This paper presents the design method of a novel biomaterial impedance analyzer based on digital auto balancing bridge method. The system hardware mainly consists of FPGA, ADC, DACs and operational amplifiers. Many DSP algorithms such as direct digital frequency synthesis (DDS), digital phase sensitive demodulation (DPSD), digital modulation and digital filter are implemented in FPGA to realize the auto balancing function of the bridge circuit. Simulation results show that the system has good performance from low frequency to 10MHz. It is suitable for EIS application in biomaterial analysis.

  Info
Periodical
Advanced Materials Research (Volumes 291-294)
Chapter
Tooling Testing and Evaluation of Materials
Edited by
Yungang Li, Pengcheng Wang, Liqun Ai, Xiaoming Sang and Jinglong Bu
Pages
1259-1262
DOI
10.4028/www.scientific.net/AMR.291-294.1259
Citation
N. Li, Y. N. Wang, H. S. Nie, H. Q. Yu, H. Xu, "Biomaterial Impedance Analyzer Based on Digital Auto Balancing Bridge", Advanced Materials Research, Vols. 291-294, pp. 1259-1262, 2011
Online since
July 2011
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Price
$32.00
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