喷头喷洒雨滴粒径测试的改进研究

色斑法是一种应用广泛的测试雨滴粒径大小的方法。但以往的雨滴率定只考虑色斑直径与雨滴真实粒径的关系，忽略了高度对率定的影响。在大量试验的基础上对数据进行多元回归分析，把高度因素作为影响雨滴粒径测量公式中一个因子。通过数据处理，得到关于高度和色斑直径双因子共同作用下的雨滴粒径的率定公式。并在处理数据过程中对公式的相关性进行了分析，经过与试验数据的比较，发现公式的拟合性好。

Measurement and Amelioration of the Test to Raindrop Size of Sprinklers

Stain method is a kind of test method used extensively in measuring raindrop for a long time. But former demarcation only considered the relation with stain diameter while neglected the influence of the height. Here the data was multivariate regressive analyzed based on abundant tests. Height was a factor that influenced the demarcation. So the formulation was obtained with the factors of the height and stain diameter by dealing data first. The correlation ratio was analyzed at the data processing. By contrasting with test data, the formulation inosculated the test data well.