基于压应力的新型温度计设计

摘要

利用应变式压力传感器测量由全桥式双金属片因热胀冷缩产生的形变，获得温度调制的电压信号，并通过A/D转换芯片将信号传入STM32F407ZGT6核心控制器，利用TFT屏幕来显示所测温度，获得了一种低成本、低功耗的新型数字温度计。%We used the strain type pressure sensors to detect the temperature-induced deformation in the full-bridge thermostatic bimetal plate,and then the signals is transferred into the STM32F407ZGT6 core controller by the A/D conversion chip.At last,we used TFT screen to display the measured temperature.