| 硅微陀螺仪数字化温度补偿系统的实现 |
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| 引用本文： | 顾广清,夏敦柱,李宏生,王寿荣.硅微陀螺仪数字化温度补偿系统的实现[J].舰船电子工程,2008,28(12). |
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| 作者姓名： | 顾广清 夏敦柱 李宏生 王寿荣 |
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| 作者单位： | 东南大学仪器科学与工程学院精密仪器及机械专业,南京,210096 |
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| 摘 要： | 分析了温度影响陀螺零偏的机理,由温度实验得出硅微陀螺仪零偏与温度呈较复杂的非线性关系;根据实验数据拟合出零偏与温度在三个温度段内的数学表达式;设计了相应的温度补偿系统,该系统以新华龙C8051F363单片机为核心,根据实时测量的温度值经由拟合的多项式计算出各温度下的补偿值,将陀螺原始信号减去补偿值即可得到补偿后的陀螺信号.经温控实验测定,在-40℃-80℃的范围内,补偿后陀螺零偏随温度变化的趋势项基本被消除,且陀螺零偏减小了一个数量级,补偿效果明显.
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| 关 键 词： | 硅微陀螺 零偏 温度补偿 拟合 |
Realization of the Digital Temperature Compensation System for Silicon Micro-machined Gyroscope |
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| Gu Guangqing,Xia Dunzhu,Li Hongsheng,Wang Shourong.Realization of the Digital Temperature Compensation System for Silicon Micro-machined Gyroscope[J].Ship Electronic Engineering,2008,28(12). |
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| Authors: | Gu Guangqing Xia Dunzhu Li Hongsheng Wang Shourong |
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| Institution: | Gu Guangqing Xia Dunzhu Li Hongsheng Wang Shourong(Department of Precision Instrument & Mechanics,Southeast University,Nanjing 210096) |
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| Abstract: | The influence of temperature variation on the bias of silicon micromachined gyroscope is analyzed,and the nonlinear relation between the bias and the temperature is derived through temperature experiments.The math expressions of the relations between bias and temperature in three temperature segments are figured out adopting least square method in terms of the data from experiments.Then,a temperature compensation system using micro-controller C8051F363 is designed.The gyro signal would be compensated by sub... |
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| Keywords: | silicon micro-machined gyroscope bias temperature compensation fitting |
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