Design and construction of ultrasonic Doppler transducers for blood flow measurement using Finite Element Analysis
نویسندگان
چکیده
This paper describes the design and construction of two ultrasonic Doppler transducers using Finite Element Analysis for blood flow measurement. These transducers were constructed using as sensing element, commercial 8 MHz PIC255 piezoceramic discs, EPO-TEK 301 and Rexolite 4422 as backing and matching layer materials respectively. The objective of this work was to design and construct two single element transducers for pulsed wave Doppler blood flow measurement, one with an angle of 30° to 45° and another with no angle (0°), both resonating at approximately 5 MHz. These transducers should work with the associated electronics using a quadrate demodulation for the blood flow Doppler ultrasonic signal detection.
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