摘要
基于平衡法原理,以MSP430F149单片机作为主控芯片,采用应变计压力传感器,设计了一种非水平重力加速度测量系统。测量装置为嵌入四个压力传感器的正四面体结构,系统根据测量装置内放置的无磁性玻璃球静止时对四个面的压力,通过数学模型计算小球所受的向下合力,并计算出当地重力加速度值,测量数值通过LCD屏实时显示。根据实验测试结果,该系统不受水平放置条件的限制,适用于不同地形和复杂环境,具有较强的现实意义。
In this paper,a type of non-horizontal gravity acceleration measuring instrument based on the principle of balance method and MSP430F149single chip microcomputer is designed.The measuring device embedded four pressure sensors is tetrahedral structure.Through mathematical calculation model,the device figures out downward force and local gravitational acceleration according to the pressure force on four surfaces when the nonmagnetic glass ball is still.At the same time,the measurement value is displayed by the LCD screen in real-time.According to the experimental results,the system is not affected by the horizontal conditions,suitable for the different topography and complex environment.So it has a strong practical significance.
作者
张秀再
王义林
鲍登森
李冉冉
ZHANG Xiu-zai;WANG Yi-lin;BAO Deng-sen;LI Ran-ran(School of Electronics and Information Engineering,Nanjing University of Information Science and Technology,Nanjing 210044,China;Jiangsu Collaborative Innovation Center on Atmospheric Environment and Equipment Technology (CICAEET),Nanjing 210044, China)
出处
《信息技术》
2017年第7期78-81,共4页
Information Technology
基金
江苏省高校自然科学研究面上项目(14KJB510019
14KJB120007)
江苏省高校自然科学研究重大项目(13KJA510001)
江苏省自然科学青年基金项目(BK20141004)
国家自然科学青年基金项目(11504176)
江苏高校优势学科建设工程资助项目
关键词
重力加速度测量
平衡法
正四面体装置
非水平方向
gravity acceleration measurement
balance theorem
regular tetrahedral model
non-horizontal direction
