| 结露自动化观测装置及试验研究 |
| |
| 引用本文： | 李肖霞,马舒庆,吴可军,张雪芬,杜波,卓问.结露自动化观测装置及试验研究[J].气象,2012,38(4):501-507. |
| |
| 作者姓名： | 李肖霞 马舒庆 吴可军 张雪芬 杜波 卓问 |
| |
| 作者单位： | 1. 中国气象局气象探测中心,北京,100081
2. 华中科技大学,武汉,430074 |
| |
| 基金项目： | 公益性行业(气象)专项(GYHY200906032)资助 |
| |
| 摘 要： | 文章介绍了一套结露自动化观测装置，由CCD图像传感器、露采集器和处理器构成。露采集器由三层带有磨砂区域的玻璃片组成，CCD图像传感器获取玻璃片的图像传送给处理器，结露时磨砂区域与未磨砂区域亮度差值发生变化，处理器自动提取亮度差值及变化信息，识别结露是否发生，从而实现对结露的自动化观测。为了定量分析自动化结露观测装置的性能，设计了观测试验，利用温湿度计观测露采集器附近的温湿度，分析研究湿度与亮度差值及结露的关系，试验结果表明，相对湿度大于97．9％时开始结露，玻片亮度归一化差值迅速降低。结露的信息获取率百分之百，结露自动识别率大于85％。
|
| 关 键 词： | 自动化 结露观测 试验 |
| 收稿时间： | 2011/3/13 0:00:00 |
| 修稿时间： | 2011/9/26 0:00:00 |
A New Automated Dewgauge and Experiment |
| |
| LI Xiaoxi,MA Shuqing,WU Kejun,ZHANG Xuefen,DU Bo and ZHUO Wen.A New Automated Dewgauge and Experiment[J].Meteorological Monthly,2012,38(4):501-507. |
| |
| Authors: | LI Xiaoxi MA Shuqing WU Kejun ZHANG Xuefen DU Bo and ZHUO Wen |
| |
| Institution: | 1 Meteorological Observation Centre of CMA,Beijing 100081 2 Huazhong University of Science and Technology,Wuhan 430074 |
| |
| Abstract: | A new automated dewgauge is proposed. It consists of CCD image sensor, dew collector and processor, in which dew collector comprises three set glasses installed at different height, and each glass set consists of transparent glass and ground glass. The brightness of the glass would change when condensation occurs. The images of three set glasses are transmitted to the processor to determine whether moisture condensation occurs. The humidity is measured using hygrothermograph to test the dew automated data. Research has shown that it is possible to discriminate the moisture condensation. The normalized brightness difference of the glass decreases rapidly when the relative humidity is greater than 97.9%. The measured method and the algorithm have good performance. The dew acquisition can be a hundred percent and the automatic identification rate arrives more than 85%. Thus it can be applied to meteorological observation. |
| |
| Keywords: | automated observation dewgauge experiment |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
| 点击此处可从《气象》浏览原始摘要信息 |
| 点击此处可从《气象》下载免费的PDF全文 |
|
