| MEMS压差传感器在小型无人机空速测量中的应用 |
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| 引用本文： | 陈小昆,侯中喜,张俊韬.MEMS压差传感器在小型无人机空速测量中的应用[J].仪表技术与传感器,2011(11). |
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| 作者姓名： | 陈小昆 侯中喜 张俊韬 |
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| 作者单位： | 国防科学技术大学航天与材料工程学院,湖南长沙,410073 |
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| 摘 要： | 介绍了一种基于MEMS压差传感器和数字信号处理器(DSP)的小型无人机空速测量系统的实现方法.根据实际需求对压差传感器进行了温度补偿,并采用最小二乘法消除器件和电路的非线性；经实验测试,空速在13～50 m/s范围内,该系统的测量精度在±3％以内.该空速测量系统具有体积小、重量轻、功耗低、工作可靠等优点.
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| 关 键 词： | 小型无人机 MEMS压差传感器 空速测量 非线性校正 最小二乘法 DSP |
Application of MEMS Pressure Sensor in Airspeed Measure for Small-UAV |
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| CHEN Xiao-kun
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HOU Zhong-xi
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ZHANG Jun-tao.Application of MEMS Pressure Sensor in Airspeed Measure for Small-UAV[J].Instrument Technique and Sensor,2011(11). |
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| Authors: | CHEN Xiao-kun HOU Zhong-xi ZHANG Jun-tao |
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| Affiliation: | CHEN Xiao-kun,HOU Zhong-xi,ZHANG Jun-tao(College of Aerospace and Materials Engineering,National University of Defense Technology,Changsha,Hunan,410073,China) |
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| Abstract: | A method of small UAVs airspeed measurement system realization based on MEMS pressure sensor and digital signal processor(DSP) was introduced.According to the actual needs of pressure sensor,the temperature compensation was used,and the least square method was applied to eliminate the nonlinear of the devices and circuits.The test shows that the error of airspeed is within the scope of 3% in the range from 13 m/s to 50 m/s.The airspeed measurement system has many merits,such as small size,light weight,low p... |
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| Keywords: | mini-UAV MEMS pressure sensor airspeed measure nonlinear correcton least square method DSP |
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