Intelligent Equipment Research Center, Beijing Academy of Agriculture and Forestry Sciences

Beijing Research Center of Intelligent Equipment for Agriculture

Tongchuan Yi

Liping Chen

Ruirui Zhang

Longlong Li

Gang Xu

Yao Wen

Chenchen Ding

Provided are a nozzle device for a plant protection unmanned aerial vehicle and a droplet diameter control method thereof. The nozzle device for a plant protection unmanned aerial vehicle includes a flexible nozzle body, a magnetostrictive sleeve, and a coil. The flexible nozzle body is provided with a nozzle exit, a periphery of the flexible nozzle body is provided with a guide surface at a position corresponding to the nozzle exit, the magnetostrictive sleeve is sleeved on the periphery of the flexible nozzle body and abutted against the guide surface. The coil is wound around the periphery of the magnetostrictive sleeve. When the coil is supplied with a current to generate a magnetic field, the magnetostrictive sleeve can move relative to the guide surface, the guide surface squeezes the nozzle exit to deform the nozzle exit, thus adjusting the size of the nozzle exit.

Nozzle device for plant protection unmanned aerial vehicle and droplet diameter control method thereof

A system and a method for evaluating atomization efficiency of a wind-driven atomizer. The system for evaluating atomization efficiency of a wind-driven atomizer comprises a detection platform, a wind tunnel mechanism and a traction measurement mechanism are arranged above the detection platform, the traction measurement mechanism is disposed beside the wind outlet end of the wind tunnel mechanism, an atomizer mechanism and an atomization measurement mechanism are sequentially disposed on the detection platform along the direction of a wind field provided by the wind tunnel mechanism, and the atomizer mechanism is connected with the traction measurement mechanism. The system and the method may effectively evaluate the atomization efficiency and provide quantitative evaluation indicators for the detection of working performance of the wind-driven atomizer, and has the advantages of convenient operation, accurate detection, precise measurement results, and high reliability of evaluation indicators.

System and method for evaluating atomization efficiency of wind-driven atomizer

Growing community of inventors

Beijing, China

Tongchuan Yi