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Design of a High-Resolution Ultrasonic Temperature Meter for Soft Tissue-Mimicking Phantoms based on a PSoC Module by Pedro Jesus Acevedo-Contla; Demetrio Fabian Garcia-Nocetti; Martin Fuentes-Cruz; Adalberto Joel Duran-Ortega is a scholarly article available to read on EtoBox.

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The measurement of temperature using non-invasive ultrasonic methods is based on changes in the ultrasonic velocity due to the temperature variation in the medium. This article describes an electronic device for measuring temperature in soft tissue-mimicking phantoms using a PSoC-5LP module, PVDF ultrasonic transducers (LDT1-028K), and an External Circuit Module. Control signals, signal acquisition and display of the temperature value are programmed using a PSoC module. The External Circuit Module was implemented with a PVDF transducer driver, an RF amplifier and a pulse voltage converter. In the experimental implementation, a distance was set between the PVDF transducers and then an operating temperature interval was selected. Considering these specifications, the flight time of the ultrasonic wave at the initial temperature is detected, which is compared with the flight time of the temperature to be measured. The difference between flight times produces a narrow pulse being converted to DC voltage, which is proportional to the temperature change. The device for measuring temperature in soft tissue-mimicking phantoms was designed to work at an operating frequency of 1MHz and a tem

Author

Pedro Jesus Acevedo-Contla; Demetrio Fabian Garcia-Nocetti; Martin Fuentes-Cruz; Adalberto Joel Duran-Ortega

Publisher

ACM

Published

2021

Language

EN