| 基于ARM+CPLD的高精度超声波风速仪的设计 |
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| 引用本文： | 吴宗玲,闫连山,曾德兵,陈娟子.基于ARM+CPLD的高精度超声波风速仪的设计[J].传感器与微系统,2012,31(6):101-103,107. |
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| 作者姓名： | 吴宗玲 闫连山 曾德兵 陈娟子 |
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| 作者单位： | 西南交通大学 信息光子与通信研究中心,四川 成都,610031 |
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| 基金项目： | 国家自然科学基金资助项目(60972003);四川省科技支撑计划重大项目(2011GZ0239) |
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| 摘 要： | 分析了运用超声波时差法测量风速风向的基本原理,介绍了风速风向的相关算法,重点给出了基于ARM+CPLD的超声波风速风向仪原型设计。同时提出了一种处理0°(360°)附近平均风向问题的算法,结合实际运用(风力发电)给出了一种运用气压传感器进行绝对风速测量的理论模型。所设计的超声波风速风向仪对环境监测和风力发电等具有重要的参考应用价值。
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| 关 键 词： | ARM CPLD 超声波 时差法 绝对风速 平均风向 |
Design of ultrasonic wave anemometer with high precision based on ARM + CPLD |
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| WU Zong-ling
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YAN Lian-shan
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ZENG De-bing
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CHEN Juan-zi.Design of ultrasonic wave anemometer with high precision based on ARM + CPLD[J].Transducer and Microsystem Technology,2012,31(6):101-103,107. |
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| Authors: | WU Zong-ling YAN Lian-shan ZENG De-bing CHEN Juan-zi |
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| Affiliation: | (Center for Information Photonics & Communications,Southwest Jiaotong University,Chengdu 610031,China) |
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| Abstract: | The principle of measurement of wind speed and direction using ultrasonic wave time difference method is introduced followed by related algorithms,the design of ultrasonic wave anemometer based on ARM+CPLD is described in details.In addition,an effective algorithm dealing with the average wind direction problems near 0°(360°)is proposed.An absolute wind speed measurement model is provided using a baroceptor for practical wind measurement applications.The designed ultrasonic wave anemometer has important reference application value in environmental monitoring and wind power generation. |
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| Keywords: | ARM CPLD ultrasonic wave time difference measurement absolute wind speed average wind direction |
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