| 旋转式喷头质量评价指标定量筛选方法对比分析 |
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| 引用本文： | 赵 华,许 迪,龚时宏.旋转式喷头质量评价指标定量筛选方法对比分析[J].农业工程学报,2009,25(12):97-101. |
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| 作者姓名： | 赵 华 许 迪 龚时宏 |
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| 作者单位： | 国家农业灌排设备质量监督检验中心,北京,100044;中国水利水电科学研究院,北京,100044 |
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| 基金项目： | 科技部社会公益研究专项（2002DIA10005） |
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| 摘 要： | 对节水灌溉产品质量评价指标进行定量筛选，可实现借助测定有代表性的指标就能开展质量评价的目的。该文依据室内性能测试数据，借助聚类分析法和主成分分析法对旋转式喷头质量评价指标进行定量筛选，对比分析了两种方法的筛选效果和适用性。结果表明，采用两种方法对旋转式喷头质量评价指标进行定量筛选得出的结论基本相近，在常用的旋转式喷头质量评价的7个指标当中，射程与喷射高度的相关性最强，对农业灌溉中常见的中、低射程旋转式喷头应保留射程而筛除喷射高度指标。考虑聚类分析法着重于每对指标间的相关性，而主成分分析法则注重所有指标间的相关程度，因此利用后者对旋转式喷头及其节水灌溉产品质量评价指标进行定量筛选更为有效。
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| 关 键 词： | 旋转，喷洒装置，灌溉，评价指标，定量筛选 |
| 收稿时间： | 2008/2/11 0:00:00 |
| 修稿时间： | 2009/12/8 0:00:00 |
Comparative analysis of quantitative sieving methods of quality evaluation indicators for rotating sprinklers |
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| Zhao Hu,Xu Di and Gong Shihong.Comparative analysis of quantitative sieving methods of quality evaluation indicators for rotating sprinklers[J].Transactions of the Chinese Society of Agricultural Engineering,2009,25(12):97-101. |
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| Authors: | Zhao Hu Xu Di and Gong Shihong |
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| Institution: | 1. National Center for Quality Supervision and Test of Agricultural Irrigation and Drainage Equipment, Beijing 100044, China; 2. China Institute of Water Resources and Hydropower Research, Beijing 100044, China,1. National Center for Quality Supervision and Test of Agricultural Irrigation and Drainage Equipment, Beijing 100044, China; 2. China Institute of Water Resources and Hydropower Research, Beijing 100044, China and 1. National Center for Quality Supervision and Test of Agricultural Irrigation and Drainage Equipment, Beijing 100044, China; 2. China Institute of Water Resources and Hydropower Research, Beijing 100044, China |
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| Abstract: | Quantitative sieving for the quality evaluation indicators of water saving irrigation products can achieve the purpose of evaluating the product quality only by representative indicators. According to the test data, quality evaluation indicators for rotating sprinklers were sieved by means of cluster analysis and principal component analysis. Effectiveness and applicability of two methods were given in comparative analysis. Results showed that the quantitative sieving results of two methods are basically similar, and spraying range and height have the maximum correlation among seven common quality evaluation indicators for rotating sprinklers. Spraying height could be deleted, while spray range should be reserved in the quality evaluation indicators for the common sprinklers with middle and low spray ranges for field irrigation. The cluster analysis focused on the correlation between two indicators, whereas principal component analysis focused on the correlation among total indicators, therefore the latter was seemly more effective for quantitative sieving of quality evaluation indicators for the rotating sprinklers and other water saving irrigation products. |
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| Keywords: | rotation sprinkler systems irrigation evaluation indicators quantitative sieving |
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