本文選題：維風(fēng)測(cè)量 + 圓柱繞流�。� 參考：《電子與信息學(xué)報(bào)》2017年03期

【摘要】：基于流量傳感器的圓柱結(jié)構(gòu)2維風(fēng)傳感器,其測(cè)量性能對(duì)地面風(fēng)測(cè)量而言不夠準(zhǔn)確。由此,該文通過(guò)分析風(fēng)洞實(shí)驗(yàn)數(shù)據(jù),建立一種數(shù)學(xué)模型來(lái)描述圓柱繞流中直徑兩端壓強(qiáng)差的分布,并根據(jù)該模型提出一種通過(guò)檢測(cè)該直徑壓強(qiáng)差來(lái)計(jì)算風(fēng)速風(fēng)向的2維風(fēng)測(cè)量方法。對(duì)風(fēng)洞測(cè)試數(shù)據(jù)應(yīng)用該方法,在2~40 m/s風(fēng)速范圍內(nèi),風(fēng)速計(jì)算值誤差不超過(guò)±(0.2+0.03 V)m/s,風(fēng)向計(jì)算值誤差不超過(guò)±5°。相比使用流量傳感器的圓柱結(jié)構(gòu)2維風(fēng)傳感器,該方法提高了測(cè)量準(zhǔn)確度。同時(shí),該方法不需要轉(zhuǎn)動(dòng)部件,不受機(jī)械摩擦和慣性的制約,需要占用的空間小。
[Abstract]:The measurement performance of the two dimensional wind sensor with cylindrical structure based on the flow sensor is not accurate enough for the surface wind measurement. Thus, by analyzing the experimental data of wind tunnel, a mathematical model is established to describe the distribution of the pressure difference between the two ends of the diameter in the flow around a cylinder. According to the model, a 2-D wind measurement method is proposed to calculate wind speed and wind direction by detecting the diameter pressure difference. The method is applied to the wind tunnel test data. In the range of 2 ~ 40 m / s wind speed, the error of wind speed calculation value is not more than 鹵0. 2 0. 03 V / m / s, and the error of wind direction calculation value is not more than 鹵5 擄. Compared with the two-dimensional wind sensor with flow sensor, this method improves the accuracy of measurement. At the same time, the method does not need rotating parts and is not restricted by mechanical friction and inertia.
【作者單位】： 中國(guó)科學(xué)院電子學(xué)研究所;中國(guó)科學(xué)院大學(xué);
【基金】：公益行業(yè)專項(xiàng)(GYHY201006044) 國(guó)家自然科學(xué)基金(51305423)~~
【分類號(hào)】：TP212
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本文編號(hào)：1890475