| 卫星推进系统气体流量测试仪的研制 |
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| 引用本文： | 吕俊芳,袁梅,李玉涛.卫星推进系统气体流量测试仪的研制[J].航空学报,1998,19(Z1):105-107. |
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| 作者姓名： | 吕俊芳 袁梅 李玉涛 |
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| 作者单位： | 北京航空航天大学自动控制系, 北京, 100083 |
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| 摘 要： | 该流量测试仪主要由轻巧型的孔板式微流量气体流量探头及以８０９８单片机为核心构成的流量线性化积算仪组成。探头的设计技巧先进，采用超小型差压传感器精确地测定出作为节流装置的孔板前后压差，通过调理电路输出电流进行远距离无失真地传送到积算仪进行数据采集与处理。
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| 关 键 词： | 气体微流量 孔板 探头 测试仪 |
DEVELOPMENT OF GAS FLOW MEASURING UNIT ON SATELLITE PROPULSION SYSTEMS |
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| L Junfang,Yuan Mei,Li Yutao.DEVELOPMENT OF GAS FLOW MEASURING UNIT ON SATELLITE PROPULSION SYSTEMS[J].Acta Aeronautica et Astronautica Sinica,1998,19(Z1):105-107. |
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| Authors: | L Junfang Yuan Mei Li Yutao |
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| Institution: | Department of Automatic Control,Beijing University of Aeronautics and Astronautics, Beijing,100083 |
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| Abstract: | This gas flow measuring unit consists of a micro gas flow measuring probe, Which has a light orifice plate, and a flow linear intergrating instrument based on MCS8098. A design method of the probe is advanced. A subminiature differential pressure sensor is used in exactly detecting the differential pressure between the two sides of the orifice plate. The output current of the circuit is transferred distortionlessly to the integrating instrument, where the data is sampled and processed. This measuring unit is used in the ground test of a satellite propulsion system. It has great value in ensuring the reliability of propulsion systems while working in the outspace. |
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| Keywords: | micr o-ga s-flow or ifice plate pr obe mea sur ing unit |
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