基于拉压力检测的新型风速风向仪  

Novel Wind-measuring Instrument Based on Pull-pressure Sensor

作　　者：许云轻[1] 黄文新[1] 卜飞飞[1] 施凯[1] 胡育文[1] 

机构地区：[1]南京航空航天大学自动化学院,江苏南京210016

出　　处：《仪表技术与传感器》2011年第3期15-17,37,共4页Instrument Technique and Sensor

基　　金：国家高技术研究发展计划(863计划)(2008AA05Z411)

摘　　要：提出了一种新型风速风向仪,它采用外形为圆柱形的特殊结构的测风感应部件,将风矢量转换为力矢量,通过力矢量的测量得到风速风向参数。这种风速风向仪内部放置3个成Y型120°对称分布的拉压力传感器,测出传感器因受力而感应的3路电信号,送至DSP处理电路,由所测力矢量的大小与方向,解算实际对应风速风向。实验结果表明:系统精度较高,比有旋转部件的机械式测风仪可靠性好,比超声测风仪成本低,在风电领域有广泛的应用前景。A novel wind measuring system was proposed.Its wind sensing component has a special structure with cylinder shape,which converts wind vector into pressure vector.The wind parameters were achieved by measuring pressure vector.In the sensing component,three pull-pressure sensors were symmetrically placed in Y shape.Three-way signals were achieved via sensors and were analyzed by DSP system to obtain the wind speed and direction.It＇s verified by the experiment that,the novel system has good accuracy,higher stability compared to the cup anemometer,and lower cost compared to the ultrasonic anemometer.Thus it has wide prospect to be applied in the field of wind power generation.

关 键 词：风速风向测量 拉压力传感器 数字信号处理 FLUENT仿真 风力发电 

分 类 号：TP216[自动化与计算机技术—检测技术与自动化装置]