Experimental evaluation of ultrasonic oscillating temperature sensors (UOTS) under cyclically changing temperatures

摘要

In contrast to most conventional temperature sensors, which need to come to thermal equilibrium with the medium of interest to report its temperature, UOTS interrogateudthe medium based on the propagation speed of ultrasound, andudwill return temperature data that are “averaged” for theudcomplete ultrasound pathway. It has been demonstrated thatudUOTS can provide consistent high-resolution temperatureudreadings under steadily decreasing temperatures usingudinexpensive ultrasonic transducers and low cost electronicudinstrumentation.