Rectangular wave excitation in wideband bioimpedance spectroscopy

Author

Min, Mart ; Paavle, Toivo ; Annus, Paul ; Land, Raul

Author_Institution

Dept. of Electron., Tallinn Univ. of Technol., Tallinn, Estonia

fYear

2009

fDate

29-30 May 2009

Firstpage

268

Lastpage

271

Abstract

Method of time domain impedance spectroscopy using of rectangular wave chirp excitation is presented in the paper. Effectiveness of the excitation is high-more than 85% of the generated energy lies in the useful excitation bandwidth, which can cover several decades of frequency. Fast measurement and joint time-frequency analysis of dynamic impedances is envisaged. Implementations in impedance spectroscopy for cell detection and characterizing in different lab-on-a-chip type high-throughput microfluidic devices can be one recommended area for the proposed method. This method offers important diagnostic information about the dynamic and structural properties of biological cells, organs like beating heart, and the whole cardiovascular system.

Keywords

bioMEMS; bioelectric phenomena; biomedical measurement; biosensors; cardiovascular system; cellular biophysics; electric impedance measurement; lab-on-a-chip; medical signal processing; microfluidics; time-frequency analysis; beating heart; biological cells; cardiovascular system; cell detection; high-throughput microfluidic devices; joint time-frequency analysis; lab-on-a-chip; rectangular wave chirp excitation; time domain impedance spectroscopy; wideband bioimpedance spectroscopy; Bandwidth; Bioimpedance; Biological cells; Chirp; Electrochemical impedance spectroscopy; Impedance measurement; Lab-on-a-chip; Microfluidics; Time frequency analysis; Wideband; Fourier analysis; bidirectional chirp; bioimpedance; cross-correlation; impedance spectroscopy; maximum length sequence; rectangular chirp; signum-chirp;

fLanguage

English

Publisher

ieee

Conference_Titel

Medical Measurements and Applications, 2009. MeMeA 2009. IEEE International Workshop on

Conference_Location

Cetraro

Print_ISBN

978-1-4244-3598-2

Electronic_ISBN

978-1-4244-3599-9

Type

conf

DOI

10.1109/MEMEA.2009.5167998

Filename

5167998