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电子发烧友网>电子资料下载>嵌入式开发>Development of a tilt measurement system based on MEMS sensor and Cortex_M3

Development of a tilt measurement system based on MEMS sensor and Cortex_M3

2017-09-28 | rar | 0.46 MB | 次下载 | 免费

资料介绍

  Tilt measurement system is a device used to measure

  the tilt angle of the carrier to horizontal plane, which is

  widely used in attitude measurement fields such as

  MUAV, robot, motorcar, ship and so on. The

  accelerometer can be used for the tilt measurement

  because of its measurement principle. With the

  development of MEMS technology, the MEMS

  accelerometer becomes the best choice to design the

  micro tilt measurement system for its small size, low

  power, low cost and strong anti-impact force although its

  measurement accuracy is lower. Recently how to design

  the micro tilt measurement system with proper chips and

  how to deduce the measurement error are studied[1-4]。

  This paper designs a low-cost, small-size and

  fast-response tilt measurement system. The contribution

  of this work focuses on two aspects. One is sticking the

  3-axis MEMS accelerometer on some plane of a

  hexahedron and compensating for the accelerometer

  sensitivity drift with temperature by the sensor in the

  microcontroller, which makes calibration and error easier

  and less. The next is using a Cortex-M3 microcontroller to

  process data, which makes the power consumption and the

  performance of the system lower and higher.

  The remainder of this paper is organized as follows. In

  Section II we will briefly introduce the measuring

  principle and the structure of the tilt measurement system.

  In Section III we will describe the hardware design of the

  system. In Section Č we will show how to compensate

  the drift error of the accelerometer with the temperature.

  In Section č we will describe the algorithm realization of

  the system. In Section Ď experimental results are

Development of a tilt measurement system based on MEMS sensor and Cortex_M3

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