| 集成微沟道空气流量传感器的动态特性 |
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| 引用本文： | 余柏林,王瑞春,张卫丰,余法红.集成微沟道空气流量传感器的动态特性[J].仪表技术,2011(7):67-70. |
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| 作者姓名： | 余柏林 王瑞春 张卫丰 余法红 |
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| 作者单位： | 1. 深圳信息职业技术学院,电子通信技术系,广东,深圳,518029
2. 武汉大学,软件工程国家重点实验室,湖北,武汉,430074 |
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| 摘 要： | 研究集成微沟道空气流量传感器的动态特性,定性分析了传感器动态特性的影响因素;并动态模拟了有正脉冲和负脉冲气流时上下游的温度随时间的变化关系,得到正负脉冲下横膈膜上温度稳定所需要的时间分别约为1.1 ms和1.5 ms。在实验中,测试了正负脉冲气流下,输出电压的完全响应时间分别为1.2 ms和1.5 ms;并采用示波器动态监测了不稳定流动状态下信号电压的时间特性,得到输出信号相对于流量脉冲稍有滞后,具有一定的流场惯性迟滞和热惯性迟滞。
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| 关 键 词： | 集成微沟道 流量传感器 动态特性 响应时间 |
Dynamic Characteristics of An Air Flow Sensor Integrated Micro Channel |
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| YU Bo-lin,WANG Rui-chun,MANG Wei-feng,YU Fa-hong.Dynamic Characteristics of An Air Flow Sensor Integrated Micro Channel[J].Instrumentation Technology,2011(7):67-70. |
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| Authors: | YU Bo-lin WANG Rui-chun MANG Wei-feng YU Fa-hong |
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| Affiliation: | YU Bo-lin1,WANG Rui-chun1,ZHANG Wei-feng1,YU Fa-hong2 (1.Department of Electronic &Communication,Shenzhen Institute of Information Technology,Shenzhen 518029,China,2.State Key Lab of Software Engineering,Wuhan University,Wuhan 430074,China) |
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| Abstract: | In this article,the dynamic characteristics of an air flow sensor integrated micro channel are studied.The Influencing Factors of dynamic characteristics have been discussed,and there are two aspects: flow inertial and temperature inertial.The temperature field of upstream and downstream is simulated when there are positive pulse and negative pulse air flow,and the time from air flow pulse to temperature stabilizing are 1.1ms and 1.5ms respectively.In experiment,the response times of the flow sensor are 1.2... |
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| Keywords: | integrated micro channel air flow sensor dynamic characteristics response time |
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