| 一种新型热线热膜流速计 |
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| 引用本文： | 盛森芝,庄永基,刘宗彦.一种新型热线热膜流速计[J].实验流体力学,2009,23(1):89-93. |
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| 作者姓名： | 盛森芝 庄永基 刘宗彦 |
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| 作者单位： | 北京大学力学系,北京,100871 |
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| 基金项目： | 科技部科技中小企业创新基金 |
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| 摘 要： | 在剖析传统热线热膜风速计存在问题的基础上,提出了解决这些问题的思路、方案和具体的线路模型,形成了预移相型热线热膜流速计的构思.首先对传统热线风速计的物理模型进行改进,用数学方程加以描述并求出其解析解提出一系列设计公式,进而选择适当的线路环节,编制相应的软件,实现上述物理模型、数学方程和设计公式的要求,形成了具有6大特色的"IFV900A型智能热线热膜流速计".
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| 关 键 词： | 热线(热膜) 风速计 预移相电路 动态响应 |
A new type of hot-wire/film anemometer |
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| SHENG Sen-zhi,ZHUANG Yong-ji,LIU Zong-yan.A new type of hot-wire/film anemometer[J].Experiments and Measur in Fluid Mechanics,2009,23(1):89-93. |
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| Authors: | SHENG Sen-zhi ZHUANG Yong-ji LIU Zong-yan |
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| Institution: | Mechanics Department;Beijing University;Beijing 100871;China |
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| Abstract: | A new type of intelligent hot-wire/film anemometer was developed by analyzing the shortcomings of traditional hot-wire/film anemometer.The author established a more precise dynamic equation of constant-temperature hot-wire/film anemometer with main bridge prephasing circuit and gave its analytic solution and a set of formulae for design.Three adjustment parameters are reduced,thus the adjusting procedure is greatly simplified.The new type of anemometer can work more stably for its synchronous bias circuit t... |
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| Keywords: | hot wire/film anemometer prephasing circuit dynamic response |
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