Integrating Line Piezoelectric Sensor for Optoacoustic Tomography: Implementation and Electrical Characterization
DOI:
https://doi.org/10.37537/rev.elektron.1.2.29.2017Keywords:
Optoacoustic Imaging, Piezoelectric Sensors, PVDFAbstract
This paper presents the implementation and electric characterization of a broadband piezoelectric polymer sensor with linear geometry based on a thin film of polyvinylidene fluoride. The electrical impedance of the sensor was measured as a function of frequency, and it was found that the polymer was practically not altered by the sensor fabrication process. Also, the sensor frecuency response with a transimpedance amplifier was measured. Due to the high electrical capacitance of the device, a large reduction of the system broadband was found.Downloads
References
M. G. Gonzalez, ”Análisis y Desarrollo de Nuevas Técnicas de Detección Optoacústicas”, Tesis de Doctorado, Universidad de Buenos Aires, 2008.
A. Fernandez Vidal, L. Ciocci Brazzano, C. Matteo, P. Sorichetti, M. G. Gonzalez, ”Parametric modeling of wideband piezoelectric polymer sensors: design for optoacoustic applications”, Rev. Sci. Instrum. vol. 88, pp. 095004-1-9 (2017).
M. Xu, L. V. Wang, ”Photoacoustic imaging in biomedicine”, Rev. Sci. Instrum. vol. 77, doi:10.1063/1.2195024 (2006).
Q. X. Chen, P. A. Payue, ”Industrial applications of piezoelectric polymer transducers”, Meas. Sci. Technol., vol. 6, pp. 249–267 (1995).
L. Ciocci Brazzano, P. A. Sorichetti, G. D. Santiago, M. G. Gonzalez, ”Broadband dielectric characterization of piezoelectric poly(vinylidene flouride)thin films between 278 K and 308 K” Polym. Test. vol. 32, pp. 1186–1191. 2013.
R. S. Dahiya, M. Valle, L. Lorenzelli, ”Spice model for lossy piezoelectric polymers,” IEEE Trans. Ultrason., Ferroelect., Freq. Contr. vol. 56, pp. 387–395 (2009).
Z. Lu, K. S. Yeo, J. Ma, M. A. Do, W. M. Lim, X. Chen, ”Broadband design techniques for transimpedance amplifiers,” IEEE Trans. Circuits and Systems I vol. 54, pp. 590–600 (2007).
M. G. Gonzalez, P. A. Sorichetti, L. Ciocci Brazzano, G. D. Santiago, ”Electromechanical characterization of piezoelectric polymer thin films in a broad frequency range”, Polym. Test. vol. 37, p. 163–169
(2014).
S. Havriliak, S. Negami, ”A complex plane analysis of α-dispersions in some polymer systems,” in Polym. Sci. C, vol. 14, pp. 99–117 (1966).
P. Bloomfield, W. Lo, P. Lewin, ”Experimental study of the acoustical properties of polymers utilized to construct PVDF ultrasonic transducers and the acousto-electric properties of PVDF and P(VDF/TrFE) films”, vol. 47, pp. 1397–1405 (2000).
K. Uchino, S. Hirose, ”Loss mechanisms in piezoelectrics: how to measure different losses separately,” IEEE Trans. Ultrason., Ferroelect., Freq. Contr. vol. 48, pp. 307–321 (2001).
M. G. Gonzalez, P. A. Sorichetti, G. D. Santiago, ”Reducing the capacitance of piezoelectric film sensors”, Rev. Sci. Instrum. vol. 87, pp. 045003-1-3 (2016).
Downloads
Published
Issue
Section
License
The authors who publish in this journal agree with terms established in the license Attribution-NonCommercial-NoDerivatives 4.0 International (CC BY-NC-ND 4.0)