摘要
近幾年來無人飛行載具(Unmanned Aerial Vehicle, UAV)的發展成熟。其中又以多旋翼無人飛行載具(Multi-Rotor UAV )的發展最為熱門，其優點在於可以垂直起降、定點滯空和慢速巡航等特性，除了與飛機有明顯差別外比直升機的穩定性更好，操作上也較為簡單。 隨著台灣農村年輕人口外移及人口高齡化導致勞動力逐漸降低，這將影響農產品生產成本及效率，為減少農民種植之成本及改善效率本實驗室以自製大酬載之長滯空多旋翼為參考並改良設計出農用噴灑多旋翼載具，利用多旋翼機的特性來協助農民進行農藥噴灑，可使農民避免吸入過多農藥同時減少農民體力的負擔。 本文除了自製農用噴灑多旋翼載具，並針對其常見的霧滴飄散做噴灑效果測試，本文針對不同噴嘴進行噴灑後所產生的不同飄散情況，利用水敏紙收集霧滴分佈後進行簡易判讀，可以發現高度以及速度在無風情況下對飄散影響較小，在有風情況下影響較大容易造成飄散。
並列摘要
Unmanned Aerial Vehicle (UAV) has matured in recent years. Among them, the development of multi-rotor vehicle is the most popular, and its advantages include vertical takeoff and landing, and hovering characteristics, hence it is significantly different from fixed-wing aircraft, more stable than the helicopter and it’s operation is simple. With the outflow of young rural population in Taiwan and the aging of the rural population, the labor force will be gradually reduced, which will affect the cost and efficiency of agricultural production. In order to reduce the cost of farmers' planting and improve the efficiency, the lab uses self-designed long endurance multi-rotor vehicles for large payloads and improved the design of agricultural spraying multi-rotor vehicles by means of multi-rotor aircraft to help farmers with pesticides spraying so that farmers can avoid inhalation of excessive pesticides while reducing the burden of farmers' physical strength. In this paper, besides using self-designed agricultural spraying multi-rotor vehicles to test the effect for common drift of droplets by different nozzle spray generated after the drift, the water-sensitive paper is used to collect the distribution of droplets for easy interpretation. It can be found that the altitude and speed have less influence on the drift when there is no wind, and the drift is more likely to occur in a windy condition.