Title :
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
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;
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
DOI :
10.1109/MEMEA.2009.5167998
