| 肌肉注射维生素B12缓解食欲不振1例 |
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| 引用本文： | 孟丽丽,刘英华,于晓明,徐庆,薛长勇.肌肉注射维生素B12缓解食欲不振1例[J].压电与声光,2010,32(1):18-18. |
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| 作者姓名： | 孟丽丽 刘英华 于晓明 徐庆 薛长勇 |
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| 作者单位： | 北京信息科技大学,传感技术研究中心,北京,100101 |
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| 基金项目： | Suported by the scientific creative platform foundation of Bejing municipal commission of education，The Beijing sensor Key Lab. open foundation，The national scientific fund committee，Key Lab. of modern measurement & control technology |
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| 摘 要： | 论述了气体摆的机理,分析了密闭腔中自然对流气体的浮升力及浮升力与温度变化的关系式.该文给出了二维微机械气体摆式加速度计与倾角传感器的结构原理和信号处理电路,并通过对实际制作的两维微机械气体摆式加速度计和倾角传感器样机进行测试.结果表明,在±7 g和±25°时,两维微机械加速度计和微机械倾角传感器的非线性度均小于1%FS.
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| 关 键 词： | 气体摆 微机械 加速度计 倾角传感器 |
Two-Dimension Micromachined Gas Pendulum Accelerometer and Tilt Sensor |
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| ZHANG Fu-xue,ZHAO Qi-feng,YUE Ping,GUO Heng.Two-Dimension Micromachined Gas Pendulum Accelerometer and Tilt Sensor[J].Piezoelectrics & Acoustooptics,2010,32(1):18-18. |
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| Authors: | ZHANG Fu-xue ZHAO Qi-feng YUE Ping GUO Heng |
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| Affiliation: | ZHANG Fu-xue,ZHAO Qi-feng,YUE Ping,GUO Heng (Research Center for Sensor Technology,Beijing Information Science , Technology University,Beijing 100101,China) |
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| Abstract: | The theory of gas pendulum is introduced. The buoyancy lift of natural convection gas is analyzed in a hermetic chamber, and the formula between the buoyancy lift and the change of temperature is given.The mircomachined gas pendulum accelerometer and the structure and signal processing circuit of the tilt sensor are also introduced.The test shows that when the acceleration′s measurement range is ±7 g and the tilt of the tilt sensor sensor′s measurement range is ±25°,the non-linearity is less than 1%FS. |
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| Keywords: | gas pendulum micromachine accelerometer tilt sensor |
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