摘要
为了消除环境温度对加速度计输出的影响,采用最小二乘法拟和建立了20℃～50℃温度范围内加速度计的静态温度模型．利用TMS320F240 DSP设计的数据采集和处理电路,将得到的补偿量输出到加速度计补偿电路,最终通过补偿电路的输出与加速度计输出进行叠加来实现对温度的补偿,使加速度计的输出随温度变化的数量级由10^(-3)变为10^(-4)．
To eliminate the impact of temperature on accelermeter, the static temperature model of the accelermeter within 20℃-50℃ was established by using the method of least square estimation. The circuit of data acquisition and processing was designed with TMS320F240 DSP to add the compensation volume to the output of the accelermeterthrough the compensating circuit. Then the temperature compensation is realized and the output change magnitude of the accelermeter following the temperature goes from to.
出处
《东莞理工学院学报》
2007年第3期74-77,共4页
Journal of Dongguan University of Technology
关键词
加速度计
温度补偿
温度模型的辨识
DSP
accelermeter
temperature compensation
identification for temperature model
DSP
