adxl345倾角测量及数据处理技术研究.doc
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adxl345倾角测量及数据处理技术研究,adxl345倾角测量及数据处理技术研究摘 要：为了解决在实际生活中需要知道物体的倾角，即以重力为z轴建立的3轴直角坐标系各轴与物体的夹角的问题，选用了美国模拟器件公司生产的adxl345 三轴加速度传感器。选用c8051f340作为mcu，它与adxl345芯片的通讯采用iic接口adxl345作为传感器件，它具有±...
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ADXL345倾角测量及数据处理技术研究
摘 要：为了解决在实际生活中需要知道物体的倾角，即以重力为z轴建立的3轴直角坐标系各轴与物体的夹角的问题，选用了美国模拟器件公司生产的ADXL345 三轴加速度传感器。选用C8051F340作为MCU，它与ADXL345芯片的通讯采用IIC接口ADXL345作为传感器件，它具有±16g测量范围，其分辨率为3.9mg/LSB，用作倾角测量时分辨率足够。再通过重力来计算出物体对应倾角。采用了多项式拟合的方法对ADXL345的输出数据的进行了校准。
关键词：ADXL345，倾角测量，加速度，IIC，C8051F340
The study about the measurement of tilt and the
technology of data processing of ADXL345
Abstract: In order to know the amount about the angles between the solidity and 3 axes of the dimensional coordinate system,which choice The direction of gravity as its z axis. It selected ADXL345 which is 3-axis digital acceleration sensor produced by ADI.It uses the IIC between the MCU and ADXL345 as the sensor bus. When ADXL345 is working as a measuring device, It selected ±16g as its measurement range, and this sensor owned 3.9mg/LSB resolution which is enough for daily work. Then we can figure out the angle by dealing with the amount of the gravity measured by ADXL345.It used the way of Polynomial fitting to correct the output data
Key words: ADXL345, angle measurement, acceleration,IIC,C8051F30
摘 要：为了解决在实际生活中需要知道物体的倾角，即以重力为z轴建立的3轴直角坐标系各轴与物体的夹角的问题，选用了美国模拟器件公司生产的ADXL345 三轴加速度传感器。选用C8051F340作为MCU，它与ADXL345芯片的通讯采用IIC接口ADXL345作为传感器件，它具有±16g测量范围，其分辨率为3.9mg/LSB，用作倾角测量时分辨率足够。再通过重力来计算出物体对应倾角。采用了多项式拟合的方法对ADXL345的输出数据的进行了校准。
关键词：ADXL345，倾角测量，加速度，IIC，C8051F340
The study about the measurement of tilt and the
technology of data processing of ADXL345
Abstract: In order to know the amount about the angles between the solidity and 3 axes of the dimensional coordinate system,which choice The direction of gravity as its z axis. It selected ADXL345 which is 3-axis digital acceleration sensor produced by ADI.It uses the IIC between the MCU and ADXL345 as the sensor bus. When ADXL345 is working as a measuring device, It selected ±16g as its measurement range, and this sensor owned 3.9mg/LSB resolution which is enough for daily work. Then we can figure out the angle by dealing with the amount of the gravity measured by ADXL345.It used the way of Polynomial fitting to correct the output data
Key words: ADXL345, angle measurement, acceleration,IIC,C8051F30
