氣壓計原理說明

這個上課講義蠻豐富的: (p15是Pressure Sensors)
https://www.engr.sjsu.edu/trhsu/ME189_Chapter%202.pdf

這本書(?)有提到BMP085
https://books.google.com.tw/books?id=eENBDwAAQBAJ&pg=PA338&lpg=PA338&dq=bmp+085+Wheatstone+bridge&source=bl&ots=XdXx7Zph8i&sig=ACfU3U2xon4M5KDji9hd6pxVP0qs-_qScg&hl=zh-TW&sa=X&ved=2ahUKEwj5luWSoMHoAhVPFqYKHS07DV4Q6AEwCnoECAoQAQ#v=onepage&q=bmp%20085%20Wheatstone%20bridge&f=false

不過bmp085的datasheet有提到它是"Piezo-resistive pressure sensors", 這邊有提到
https://www.rohm.com/electronics-basics/sensor/barometric-pressure-sensor


Piezo-resistive原理的氣壓計, 感覺就是裡面有四個電阻, 然後用"惠斯通電橋(Wheatstone bridge)"去計算氣壓值

(看到piezo就會想到pizza, XD)

這邊也有提到:
https://www.electronicspecifier.com/products/sensors/a-quick-guide-to-choosing-a-pressure-sensor