滴水计时器数学模型的构建  

Construction of Mathematical Model of Drip Timer

作　　者：阮伟卿[1] RUAN WEI-qing(Weihai Vocational College,Weihai 264210 Ch)

机构地区：[1]威海职业学院,山东威海264210

出　　处：《科技创新与生产力》2022年第11期22-25,共4页Sci-tech Innovation and Productivity

摘　　要：由于滴水计时是用水滴累计的重量或者体积来指示时间,因此单个水滴重量或者单个水滴体积与单个水滴时间的关系,成为滴水计时的关键。本文应用水表面张力的计算公式和伯努利方程,构建了一个水滴重量与滴管的内径、滴管的外径、水面高度和时间关系的数学模型,为设计滴水计时器提供了理论参考模型。指出该滴水计时器可以应用于环境稳定、时间精度要求不高的家庭冰箱内,无需电池、环保绿色,有较大的应用价值。Since the drip timing is indicated by the accumulated weight or volume of water drops, the relationship between the weight or volume of a single water droplet and the time of a single water droplet becomes the key to the drip timing.In this paper, the calculation formula of water surface tension and Bernoulli equation are used to establish a mathematical model of the relationship between the weight of water droplets and the inner diameter, outer diameter, water surface height and time, which provides a theoretical reference model for the design of the drip timer. It is pointed out that the drip timer can be used in household refrigerators with stable environment and low time accuracy requirements, and it is battery free,environmentally friendly and has great application value.

关 键 词：计量仪器 时间计量 滴水计时 水滴重量 细管流量 流量系数 

分 类 号：TH714[机械工程—测试计量技术及仪器]