| 悬丝支承型加速度计静态温度模型辨识及温度补偿方法研究 |
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| 引用本文： | 李园晴,傅山,庞秀枝.悬丝支承型加速度计静态温度模型辨识及温度补偿方法研究[J].航空计测技术,2012(5):13-17. |
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| 作者姓名： | 李园晴 傅山 庞秀枝 |
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| 作者单位： | [1]上海交通大学,上海200240 [2]中国空空导弹研究院,河南洛阳471009 |
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| 摘 要： | 为了消除环境温度变化对悬丝支承型加速度计精度的影响,采用最小二乘法拟合建立了-50～68℃温度范围内加速度计模型系数零偏K0和标度因数K1的温度模型。由TMS320F2812 DSP和测温模块LM47172组成的硬件系统,根据温度模型对加速度计输出进行补偿后,加速度计输出的拟合均方根误差保持在10-4g数量级以内,比未采用温度补偿时提高了一个数量级,补偿效果明显。
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| 关 键 词： | 悬丝支承型加速度计 零偏 标度因数 温度模型辨识 温度补偿 |
Study of the Identification for the Static Temperature Model and the Method for Compensating Temperature of Pendulous Accelerometer |
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| LI Yuanqing,FU Shan,PANG Xiuzhi.Study of the Identification for the Static Temperature Model and the Method for Compensating Temperature of Pendulous Accelerometer[J].Aviation Metrology & Measurement Technology,2012(5):13-17. |
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| Authors: | LI Yuanqing FU Shan PANG Xiuzhi |
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| Institution: | 1.Shanghai Jiaotong University,Shanghai 200240,China;2.China Airborne Missile Academy,Luoyang 471009,China) |
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| Abstract: | To eliminate the impact of temperature on accelerometer,by using the method of least square fitting,the static temperature model of the accelerometer within-50~ ＋68℃ has been established.The hardware system is composed of DSP（TMS320F2812） and temperature module（LM47172）.After temperature compensation with the above model by the system,the magnitude of output change is 10-4g,which is better than that without temperature compensation,and the stability of the accelerometer output has a significant improvement. |
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| Keywords: | pendulous accelerometer zero offset scale factor identification for temperature mode temperature compensation |
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