摘要
文章采用振动筒式压力传感器,结合单片机技术设计了一种高精度的数字式气压高度表,文中详细论述了硬件设计,给出了软件设计流程,并从硬件和软件两方面对引起测量压力的温度误差、静压误差和非线性误差进行了补偿,进一步提高了气压高度表的实际精度。该气压高度表与传统膜盒式气压高度表相比,具有精度高、结构简单、体积小和质量轻等优点。
The paper gives the design of high precision baro-altimeter based on the microcomputer and the vibrating cylinder sensor.It discusses the hardware design and the software flow.It puts forward the compensatory method of temperature error,immobile barometric error and nonlinear error.It enhances the precision of the baro-altimeter.The baro-altimeter has features of high precision,simple structure,small volume and weight.
引文
[1]刘迎春,叶湘滨.传感器原理、设计与应用[M].北京:国防科技大学出版社,2004.
[2]吴晓男,于进勇,徐宇茹.振动筒压力传感器在飞机上的应用[J].仪表技术,2010(6):68-70.
[3]张毅刚,彭喜源,谭晓昀.MCS-51单片机应用设计[M].哈尔滨:哈尔滨工业大学出版社,1997.