基于单片机的智能水平仪设计.docx

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摘 要
电子水平仪是一种非常普遍的测量小角度的量具。用它可测量对于水平位置的倾斜度。基于传感器、数字信号处理、单片机技术的数字水平仪是当前倾角测试仪器数字化发展的方向。
本毕业设计就是采用STC89C52 单片机和ADI 公司生产的三轴加速度传感器ADXL345 相结合，利用ADXL345 三轴加速度传感器感应水平倾角，通过单片机的控制以及运算将倾角以数值的形式直接在 LCD 显示屏上进行显示、处理，从而使角度测量变得方便、快捷， 实现了倾角的高精度测量。通过 ADXL345 三轴加速度传感器原理，提出了使用软件和硬件结合的自动校正技术进行测量角度，最大限度简化了电路，提高了系统的稳定性和可靠性。
通过对本课题的研究，让我对水平仪有了一定的了解，在未来水平仪将在建筑方面起着重要作用，并且随着时代发展，水平仪对角度的测量将越来越精细，随着光学应用领域的不断扩展，也相应的产生了一些基于光电原理的光电式水平仪和激光式水平仪， 光电原理的应用将是未来水平仪的发展方向。
关键词：智能水平仪；单片机；ADXL345；角度
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Abstract
Electronic level gauge is a very common small angle measurement. Measurement for the horizontal position of the inclination to use it. Based on the digital level sensor, digital signal processing, computer technology is the current development of digital instrument tilt testing instrument inthe direction of.
This graduation design is the use of three axis accelerometer ADXL345 microcontroller STC89C52 and ADI company production of combination, using the ADXL345 three axis acceleration sensor level angle, processingthrough the MCU control and operation will dip in numerical form directly in the LCD screen display,, so that the angle measuring is convenient, quick, realize high precision measurement of angle. The principle of the ADXL345 three axis accelerometer, and proposes to use the combination of hardware and software of the automatic calibration technique for measuring the angle, the maximum simplifies the circuit, improves the stability and reliability of the system.
This graduation design is the use of three axis accelerometer ADXL345 microcontroller STC89C52 and ADI company production of combination, using the ADXL345 three axis acceleration sensor level angle, processingthrough the MCU control and operation will dip in numerical form directly in the LCD screen display,, so that the angle measuring is convenient, quick, realize high precision measurement of