论文部分内容阅读
基于超声波在棒状固体介质中传播速度与温度的关系,运用高速高分辨率的硬件电路和软件细分插补算法,精确地测量超声波的回波时间,从而精确地测量超声波的传播时间并计算出对应的温度值。根据在固体介质中传播时间和温度的关系建立数学模型,通过已测得的传播时间求出对应的温度值。设计的温度计结构简单,能够实时地测量液体温度的变化,并且能在各种高温环境中广泛应用。
Based on the relationship between ultrasonic propagation speed and temperature in rod-shaped solid medium, the high-speed and high-resolution hardware circuit and software subdivision interpolation algorithm are used to accurately measure the echo time of ultrasonic wave to accurately measure the propagation time of ultrasonic wave and calculate Corresponding temperature value. According to the relationship between propagation time and temperature in solid medium, a mathematical model is established, and the corresponding temperature value is obtained from the measured propagation time. The designed thermometer is simple in structure, capable of measuring the change of liquid temperature in real time and can be widely used in various high temperature environments.