Title :
Simulation of a PVDF transducer array using the finite element method (FEM) to measure temperature gradients in a soft tissue
Author :
Vazquez, Manuel ; Petrearce, Rodolfo ; Duran, J. ; Acevedo, Pedro
Author_Institution :
Inst. de Investig. en Mat. Aplic. y en Sist., Univ. Nac. Autonoma de Mexico, Mexico City, Mexico
Abstract :
The objective of this work is to use the Finite Element Method (FEM) to simulate the performance of a PVDF transducer array to measure temperature gradients through the determination of phase shifts, i.e. time shifts of the waveform of the echo due to a change in the speed of propagation of ultrasound as a result of a change in temperature, they can be interpreted as phase shifts in the frequency domain. Making it possible to determine the change in temperature from the phase shifts; in a medium of propagation previously characterized.
Keywords :
biological tissues; biomedical transducers; biothermics; finite element analysis; polymers; temperature measurement; ultrasonic transducers; PVDF transducer array; echo waveform; finite element method; frequency domain; phase shifts; soft tissue; temperature gradient measurement; ultrasound propagation; Arrays; Finite element analysis; Materials; Mathematical model; Temperature measurement; Transducers; Ultrasonic imaging; Finite Element; PVDF; Simulation; Ultrasound;
Conference_Titel :
Sensors (IBERSENSOR), 2014 IEEE 9th Ibero-American Congress on
Conference_Location :
Bogota
Print_ISBN :
978-1-4799-6835-0
DOI :
10.1109/IBERSENSOR.2014.6995530
