| 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].气动实验与测量控制,2009(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： | 基金项目：科技部2001年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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| 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 than the traditional anemometer. And it also has other advantages. |
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| Keywords: | hot wire/film anemometer prephasing circuit dynamic response |
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